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pushbutton switch (cylindrical 22/25-dia.) a22 install in 22-dia. or 25-dia. panel cutout (when using a ring) lever for easily mounting and removing the switch unit. increase wiring efficiency with three-row mounting of switch blocks. finger protection mechanism on switch unit provided as a standard feature. use 25-dia. ring to install in 25-dia. panel cutouts. mounted using either open-type (fork-type) or closed-type (round-type) crimp terminals. ip65 oil resistance ( non-lighted models) ip65 (lighted models) be sure to read safety precautions for all pushbutton switches and safety precautions on page 23. list of models non-lighted pushbutton switche s lighted pushbutton switches appearance model number appearance model number appearance model number round flat a22-f square projected a22-c round projected a22l-t projected a22-t guard a22-d full guard a22l-g full guard a22-g mushroom mushroom small (30 dia.) a22-s half guard a22l-h half guard a22-h mushroom medium (40 dia.) a22-m square projected a22l-c full guard a22l-d http://www.ia.omron.com/ 1 (c)copyright omron corporation 2007 all rights reserved.
a22 model number structure model number legend ..... shipped as a set which includes the pushbutton, lamp (lighted type only), and switch. for information on combinations, refer to ordering information on pages 3 to 6. (1) (2) (3) (4) (5) (6) a22 l - t r - 12a - 10 m (2) flange shape non-lighted lighted code description f round flat tp r o j e c t e d g full-guard h half-guard c square projected d full-guard s round mushroom small (30 dia.) m mushroom medium (40 dia.) code description t round projection g full-guard h half-guard c square projection d full-guard (1) type code descrip- tion no symbol non-lighted l lighted (3) illumination color * for non-lighted type only code descrip- tion rred ggreen yyellow w white ablue bblack * (4) light source without voltage reduction unit with voltage reduction unit note: led incorporates the 24-vac/ vdc type. code operating voltage no symbol non-lighted 6d led 6 vdc 6a 6 vac 12a 12 vac/vdc 24a 24 vac/vdc 5 incan- descent lamp 5 vac/vdc 12 12 vac/vdc 24 24 vac/vdc code operating voltage t1 led 100 vac t2 200 vac (5) contacts note: 1. the contact ratings are for standard loads. for microloads, select from the accessories on page 10. 2. refer to page 13 for contact ratings. code description 10 spst-no 01 spst-nc 11 spst-no + spst-nc 20 dpst-no 02 dpst-nc (6) switch action note: 1. momentary operation: self-resetting 2. alternate operation: self-holding the socket unit holds and the operation unit resets. code description m momentary a alternate ratings and characteristics: see pages 13 to 14. precautions for correct use: refer to page 23. dimensions: refer to page16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 2 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information completely assembled ........ shipped as a set which includes the pushbutton, lamp (lighted type only), and switch. non-lighted (round type) note: the contact ratings are for standard loads. non-lighted (square type) note: the contact ratings are for standard loads. operation momentary opera- tion (self-resetting) alternate operation (self-holding) illumination color appearance output set set round/flat type a22-f spst-no a22-f @ -10m a22-f @ -10a r (red) y (yellow) g (green) w (white) a (blue) b (black) spst-nc a22-f @ -01m a22-f @ -01a spst-no + spst-nc a22-f @ -11m a22-f @ -11a dpst-no a22-f @ -20m a22-f @ -20a dpst-nc a22-f @ -02m a22-f @ -02a round/projection type a22-t spst-no a22-t @ -10m a22-t @ -10a spst-nc a22-t @ -01m a22-t @ -01a spst-no + spst-nc a22-t @ -11m a22-t @ -11a spst-no + spst-no a22-t @ -20m a22-t @ -20a spst-nc + spst-nc a22-t @ -02m a22-t @ -02a round/full-guard type a22-g spst-no a22-g @ -10m a22-g @ -10a spst-nc a22-g @ -01m a22-g @ -01a spst-no + spst-nc a22-g @ -11m a22-g @ -11a spst-no + spst-no a22-g @ -20m a22-g @ -20a spst-nc + spst-nc a22-g @ -02m a22-g @ -02a round/half-guard type a22-h spst-no a22-h @ -10m a22-h @ -10a spst-nc a22-h @ -01m a22-h @ -01a spst-no + spst-nc a22-h @ -11m a22-h @ -11a spst-no + spst-no a22-h @ -20m a22-h @ -20a spst-nc + spst-nc a22-h @ -02m a22-h @ -02a round/small-size mushroom type (30-dia. head) a22-s spst-no a22-s @ -10m --- spst-nc a22-s @ -01m spst-no + spst-nc a22-s @ -11m spst-no + spst-no a22-s @ -20m spst-nc + spst-nc a22-s @ -02m round/medium-size mushroom type (40-dia head) a22-m spst-no a22-m @ -10m spst-nc a22-m @ -01m spst-no + spst-nc a22-m @ -11m spst-no + spst-no a22-m @ -20m spst-nc + spst-nc a22-m @ -02m operation momentary opera- tion (self-resetting) alternate operation (self-holding) illumination color appearance output set set square/projection type a22-c spst-no a22-c @ -10m a22-c @ -10a r (red) y (yellow) g (green) w (white) a (blue) b (black) spst-nc a22-c @ -01m a22-c @ -01a spst-no + spst-nc a22-c @ -11m a22-c @ -11a spst-no + spst-no a22-c @ -20m a22-c @ -20a spst-nc + spst-nc a22-c @ -02m a22-c @ -02a square/guard type a22-d spst-no a22-d @ -10m a22-d @ -10a spst-nc a22-d @ -01m a22-d @ -01a spst-no + spst-nc a22-d @ -11m a22-d @ -11a spst-no + spst-no a22-d @ -20m a22-d @ -20a spst-nc + spst-nc a22-d @ -02m a22-d @ -02a individual models: refer to pages 7 to 9. (the pushbutton, lamp, and switch can be ordered ratings and characteristics: see pages 13 to 14. dimensions: refer to page 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 3 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information completely assembled ........shipped as a set which includes the pushbutton, lamp (lighted type only), and switch. lighted (round type) note: the contact ratings are for standard loads. note: the contact ratings are for standard loads. operation momentary operation (self-resetting) alternate operation (self-holding) illumination color appearance output lighting operating voltage set set round/projection type led lighting (without voltage reduction unit) a22l-t spst-no led 6 vdc a22l-t @ -6d-10m a22l-t @ -6d-10a r (red) y (yellow) g (green) w (white) a (blue) 6 vac a22l-t @ -6a-10m a22l-t @ -6a-10a 12 vac/vdc a22l-t @ -12a-10m a22l-t @ -12a-10a 24 vac/vdc a22l-t @ -24a-10m a22l-t @ -24a-10a spst-nc 6 vdc a22l-t @ -6d-01m a22l-t @ -6d-01a 6 vac a22l-t @ -6a-01m a22l-t @ -6a-01a 12 vac/vdc a22l-t @ -12a-01m a22l-t @ -12a-01a 24 vac/vdc a22l-t @ -24a-01m a22l-t @ -24a-01a spst-no + spst-nc 6 vdc a22l-t @ -6d-11m a22l-t @ -6d-11a 6 vac a22l-t @ -6a-11m a22l-t @ -6a-11a 12 vac/vdc a22l-t @ -12a-11m a22l-t @ -12a-11a 24 vac/vdc a22l-t @ -24a-11m a22l-t @ -24a-11a spst-no + spst-no 6 vdc a22l-t @ -6d-20m a22l-t @ -6d-20a 6 vac a22l-t @ -6a-20m a22l-t @ -6a-20a 12 vac/vdc a22l-t @ -12a-20m a22l-t @ -12a-20a 24 vac/vdc a22l-t @ -24a-20m a22l-t @ -24a-20a spst-nc + spst-nc 6 vdc a22l-t @ -6d-02m a22l-t @ -6d-02a 6 vac a22l-t @ -6a-02m a22l-t @ -6a-02a 12 vac/vdc a22l-t @ -12a-02m a22l-t @ -12a-02a 24 vac/vdc a22l-t @ -24a-02m a22l-t @ -24a-02a round/projection type led voltage-reduction lighting (with voltage reduction unit) a22l-t spst-no 100 vac a22l-t @ -t1-10m a22l-t @ -t1-10a 200 vac a22l-t @ -t2-10m a22l-t @ -t2-10a spst-nc 100 vac a22l-t @ -t1-01m a22l-t @ -t1-01a 200 vac a22l-t @ -t2-01m a22l-t @ -t2-01a spst-no + spst-nc 100 vac a22l-t @ -t1-11m a22l-t @ -t1-11a 200 vac a22l-t @ -t2-11m a22l-t @ -t2-11a spst-no + spst-no 100 vac a22l-t @ -t1-20m a22l-t @ -t1-20a 200 vac a22l-t @ -t2-20m a22l-t @ -t2-20a spst-nc + spst-nc 100 vac a22l-t @ -t1-02m a22l-t @ -t1-02a 200 vac a22l-t @ -t2-02m a22l-t @ -t2-02a operation momentary operation (self-resetting) alternate operation (self-holding) illumination color appearance output lighting operating voltage set set round/half-guard type led lighting (without voltage reduction unit) a22l-h spst-no led 24 vac/vdc a22l-h @ -24a-10m a22l-h @ -24a-10a r (red) y (yellow) g (green) w (white) a (blue) spst-nc a22l-h @ -24a-01m a22l-h @ -24a-01a spst-no + spst-nc a22l-h @ -24a-11m a22l-h @ -24a-11a spst-no + spst-no a22l-h @ -24a-20m a22l-h @ -24a-20a spst-nc + spst-nc a22l-h @ -24a-02m a22l-h @ -24a-02a round/half-guard type led voltage-reduction lighting (with voltage reduction unit) a22l-h spst-no 100 vac a22l-h @ -t1-10m a22l-h @ -t1-10a 200 vac a22l-h @ -t2-10m a22l-h @ -t2-10a spst-nc 100 vac a22l-h @ -t1-01m a22l-h @ -t1-01a 200 vac a22l-h @ -t2-01m a22l-h @ -t2-01a spst-no + spst-nc 100 vac a22l-h @ -t1-11m a22l-h @ -t1-11a 200 vac a22l-h @ -t2-11m a22l-h @ -t2-11a spst-no + spst-no 100 vac a22l-h @ -t1-20m a22l-h @ -t1-20a 200 vac a22l-h @ -t2-20m a22l-h @ -t2-20a spst-nc + spst-nc 100 vac a22l-h @ -t1-02m a22l-h @ -t1-02a 200 vac a22l-h @ -t2-02m a22l-h @ -t2-02a individual models: refer to pages 7 to 9. (the pushbutton, lamp, and switch can be ordered separately.) ratings, characteristics, and dimensions: see pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 4 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information completely assembled ........ shipped as a set which includes the pushbutton, lamp (lighted type only), and switch. lighted (round type) note: the contact ratings are for standard loads. operation momentary operation (self-resetting) alternate operation (self-holding) illumination color appearance output lighting operating voltage set set round/full-guard type led lighting (without voltage reduction unit) a22l-g spst-no led 6 vdc a22l-g @ -6d-10m a22l-g @ -6d-10a r (red) y (yellow) g (green) w (white) a (blue) 6 vac a22l-g @ -6a-10m a22l-g @ -6a-10a 12 vac/vdc a22l-g @ -12a-10m a22l-g @ -12a-10a 24 vac/vdc a22l-g @ -24a-10m a22l-g @ -24a-10a spst-nc 6 vdc a22l-g @ -6d-01m a22l-g @ -6d-01a 6 vac a22l-g @ -6a-01m a22l-g @ -6a-01a 12 vac/vdc a22l-g @ -12a-01m a22l-g @ -12a-01a 24 vac/vdc a22l-g @ -24a-01m a22l-g @ -24a-01a spst-no + spst-nc 6 vdc a22l-g @ -6d-11m a22l-g @ -6d-11a 6 vac a22l-g @ -6a-11m a22l-g @ -6a-11a 12 vac/vdc a22l-g @ -12a-11m a22l-g @ -12a-11a 24 vac/vdc a22l-g @ -24a-11m a22l-g @ -24a-11a spst-no + spst-no 6 vdc a22l-g @ -6d-20m a22l-g @ -6d-20a 6 vac a22l-g @ -6a-20m a22l-g @ -6a-20a 12 vac/vdc a22l-g @ -12a-20m a22l-g @ -12a-20a 24 vac/vdc a22l-g @ -24a-20m a22l-g @ -24a-20a spst-nc + spst-nc 6 vdc a22l-g @ -6d-02m a22l-g @ -6d-02a 6 vac a22l-g @ -6a-02m a22l-g @ -6a-02a 12 vac/vdc a22l-g @ -12a-02m a22l-g @ -12a-02a 24 vac/vdc a22l-g @ -24a-02m a22l-g @ -24a-02a round/full-guard type led voltage-reduction lighting (with voltage reduction unit) a22l-g spst-no 100 vac a22l-g @ -t1-10m a22l-g @ -t1-10a 200 vac a22l-g @ -t2-10m a22l-g @ -t2-10a spst-nc 100 vac a22l-g @ -t1-01m a22l-g @ -t1-01a 200 vac a22l-g @ -t2-01m a22l-g @ -t2-01a spst-no + spst-nc 100 vac a22l-g @ -t1-11m a22l-g @ -t1-11a 200 vac a22l-g @ -t2-11m a22l-g @ -t2-11a spst-no + spst-no 100 vac a22l-g @ -t1-20m a22l-g @ -t1-20a 200 vac a22l-g @ -t2-20m a22l-g @ -t2-20a spst-nc + spst-nc 100 vac a22l-g @ -t1-02m a22l-g @ -t1-02a 200 vac a22l-g @ -t2-02m a22l-g @ -t2-02a individual models: refer to pages 7 to 9. (the pushbutton, lamp, and switch can be ordered separately.) ratings, characteristics, and dimensions: refer to pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 5 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information completely assembled ........shipped as a set which includes the pushbutton, lamp (lighted type only), and switch. lighted (square type) note: the contact ratings are for standard loads. note: the contact ratings are for standard loads. operation momentary operation (self-resetting) alternate operation (self-holding) illumination color appearance output lighting operating voltage set set square/projection type led lighting (without voltage reduction unit) a22l-c spst-no led 24 vac/vdc a22l-c @ -24a-10m a22l-c @ -24a-10a r (red) y (yellow) g (green) w (white) a (blue) spst-nc a22l-c @ -24a-01m a22l-c @ -24a-01a spst-no + spst-nc a22l-c @ -24a-11m a22l-c @ -24a-11a spst-no + spst-no a22l-c @ -24a-20m a22l-c @ -24a-20a spst-nc + spst-nc a22l-c @ -24a-02m a22l-c @ -24a-02a square/projection type led voltage-reduction lighting (with voltage reduction unit) a22l-c spst-no 100 vac a22l-c @ -t1-10m a22l-c @ -t1-10a 200 vac a22l-c @ -t2-10m a22l-c @ -t2-10a spst-nc 100 vac a22l-c @ -t1-01m a22l-c @ -t1-01a 200 vac a22l-c @ -t2-01m a22l-c @ -t2-01a spst-no + spst-nc 100 vac a22l-c @ -t1-11m a22l-c @ -t1-11a 200 vac a22l-c @ -t2-11m a22l-c @ -t2-11a spst-no + spst-no 100 vac a22l-c @ -t1-20m a22l-c @ -t1-20a 200 vac a22l-c @ -t2-20m a22l-c @ -t2-20a spst-nc + spst-nc 100 vac a22l-c @ -t1-02m a22l-c @ -t1-02a 200 vac a22l-c @ -t2-02m a22l-c @ -t2-02a operation momentary operation (self-resetting) alternate operation (self-holding) illumination color appearance output lighting operating voltage set set square/full-guard type led lighting (without voltage reduction unit) a22l-d spst-no led 24 vac/vdc a22l-d @ -24a-10m a22l-d @ -24a-10a r (red) y (yellow) g (green) w (white) a (blue) spst-nc a22l-d @ -24a-01m a22l-d @ -24a-01a spst-no + spst-nc a22l-d @ -24a-11m a22l-d @ -24a-11a spst-no + spst-no a22l-d @ -24a-20m a22l-d @ -24a-20a spst-nc + spst-nc a22l-d @ -24a-02m a22l-d @ -24a-02a square/full-guard type led voltage-reduction lighting (with voltage reduction unit) a22l-d spst-no 100 vac a22l-d @ -t1-10m a22l-d @ -t1-10a 200 vac a22l-d @ -t2-10m a22l-d @ -t2-10a spst-nc 100 vac a22l-d @ -t1-01m a22l-d @ -t1-01a 200 vac a22l-d @ -t2-01m a22l-d @ -t2-01a spst-no + spst-nc 100 vac a22l-d @ -t1-11m a22l-d @ -t1-11a 200 vac a22l-d @ -t2-11m a22l-d @ -t2-11a spst-no + spst-no 100 vac a22l-d @ -t1-20m a22l-d @ -t1-20a 200 vac a22l-d @ -t2-20m a22l-d @ -t2-20a spst-nc + spst-nc 100 vac a22l-d @ -t1-02m a22l-d @ -t1-02a 200 vac a22l-d @ -t2-02m a22l-d @ -t2-02a individual models: refer to pages 7 to 9. (the pushbutton, lamp, and switch can be ordered separately.) ratings, characteristics, and dimensions: see pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 6 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information subassembled .......................the pushbutton, lamp, or switch can be ordered separately. use them in combination for models that are n ot available as assembled units. these can also be used as inventory for maintenance parts. lighted models lighted models non-lighted models (without voltage reduction unit) (with voltage reduction unit) pushbutton pushbutton pushbutton lamp lamp switch switch (without voltage reduction unit) switch (with voltage reduction unit) incandescent lamp led led ordering set combinations: refer to pages 3 to 6. ratings, characteristics, and dimensions: see pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 7 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information subassembled ....................... the pushbutton, lamp, or switch can be ordered separately. use them in combination for models that are n ot available as assembled units. these can also be used as inventory for maintenance parts. pushbutton non-lighted lighted note: common to incandescent lamps and led lamps. sealing ip65 oil-resistant models appearance flat type projection type full-guard type half-guard type color model model model model red a22-fr a22-tr a22-gr a22-hr green a22-fg a22-tg a22-gg a22-hg yellow a22-fy a22-ty a22-gy a22-hy white a22-fw a22-tw a22-gw a22-hw blue a22-fa a22-ta a22-ga a22-ha black a22-fb a22-tb a22-gb a22-hb sealing ip65 oil-resistant models appearance round/mushroom type (30-dia. head) round/mushroom type (40-dia. head) square/projection type square/full-guard type color model model model model red a22-sr a22-mr a22-cr a22-dr green a22-sg a22-mg a22-cg a22-dg yellow a22-sy a22-my a22-cy a22-dy white a22-sw a22-mw a22-cw a22-dw blue a22-sa a22-ma a22-ca a22-da black a22-sb a22-mb a22-cb a22-db sealing ip65 appearance projection type full-guard type half-guard type color model model model red a22-tr a22-gr a22-hr green a22-tg a22-gg a22-hg yellow a22-ty a22-gy a22-hy white a22-tw a22-gw a22-hw blue a22-ta a22-ga a22-ha sealing ip65 appearance square/projection type square/full-guard type color model model red a22-cr a22-dr green a22-cg a22-dg yellow a22-cy a22-dy white a22-cw a22-dw blue a22-ca a22-da ordering set combinations: refer to pages 3 to 6. ratings, characteristics, and dimensions: see pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 8 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information subassembled .......................the pushbutton, lamp, or switch can be ordered separately. use them in combination for models that are n ot available as assembled units. these can also be used as inventory for maintenance parts. lamp led lamp *1. for voltage-reduction lighting, use the a22-24a @ . only 24-v led lamps can be used. *2. used when the pushbutton color is yellow or white. incandescent lamp switch (standard load) no voltage reduction unit voltage reduction unit *1. a dpst-no model is shown here as an example. *2. for a model with a voltage reduction unit, use the a22-24a @ . only 24-v led lamps can be used. operating voltage 6 v 12 v 24 v 24 v super-bright appearance led light model model model model dc red a22-6dr --- --- --- green a22-6dg --- --- --- yellow * 2 a22-6dy --- --- --- blue a22-6da --- --- --- ac red a22-6ar --- --- --- green a22-6ag --- --- --- yellow * 2 a22-6ay --- --- --- blue a22-6aa --- --- --- ac and dc red --- a22-12ar a22-24ar a22-24asr green --- a22-12ag a22-24ag a22-24asg yellow * 2 --- a22-12ay a22-24ay a22-24asy blue --- a22-12aa a22-24aa a22-24asa appearance operating voltage 5 vac/vdc 12 vac/vdc 24 vac/vdc a22-5 a22-12 a22-24 classification appearance non-lighted lighted operation momentary alternate momentary alternate contacts model model model model standard load spst-no a22-10m a22-10a a22l-10m a22l-10a spst-nc a22-01m a22-01a a22l-01m a22l-01a spst-no + spst-nc a22-11m a22-11a a22l-11m a22l-11a spst-no + spst-no a22-20m a22-20a a22l-20m a22l-20a spst-nc + spst-nc a22-02m a22-02a a22l-02m a22l-02a classification appearance 110 vac, lighted 220 vac, lighted operation momentary alternate momentary alternate contacts model model model model standard load spst-no a22l-10m-t1 a22l-10a-t1 a22l-10m-t2 a22l-10a-t2 spst-nc a22l-01m-t1 a22l-01a-t1 a22l-01m-t2 a22l-01a-t2 spst-no + spst-nc a22l-11m-t1 a22l-11a-t1 a22l-11m-t2 a22l-11a-t2 spst-no + spst-no a22l-20m-t1 a22l-20a-t1 a22l-20m-t2 a22l-20a-t2 spst-nc + spst-nc a22l-02m-t1 a22l-02a-t1 a22l-02m-t2 a22l-02a-t2 ordering set combinations: refer to pages 3 to 6. ratings, characteristics, and dimensions: see pages 13 to 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 9 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information accessories (order separately) accessories item appearance classification model remarks switch blocks spst-no standard load a22-10 order switch blocks to add an spst-no (a22-10) or spst-nc (a22-01) switch block (for standard loads) or to replace a switch block. microload a22-10s spst-nc standard load a22-01 microload a22-01s dpst-no standard load a22-20 microload a22-20s dpst-nc standard load a22-02 microload a22-02s spst-no + spst-nc standard load a22-11 microload a22-11s lamp sockets direct lighting A22-TN voltage-reduction lighting 110 vac a22-t1 used when changing the lighting method. (led only) 220 vac a22-t2 mounting latches for momentary models a22-3200 provided as standard. order mounting latches only when mounting switch blocks or lamp sockets that are purchased individ- ually. for alternate models a22-3210 legend plate frames standard size with snap-in legend plate (without text) white a22z-3321 snap-in legend plate is acrylic. red a22z-3322 black a22z-3323 without snap-in legend plate a22z-3320 large size with snap-in legend plate (without text) white a22z-3331 snap-in legend plate is acrylic. red a22z-3332 black a22z-3333 without snap-in legend plate a22z-3330 lock ring round a22z-3360 this lock ring is used when a more secure lock feature is required. metallic bezel rings for flat or projection models a22z-3580 replace with the standard model. material: nickel-plated zinc cannot be used with the m22. for full-guard models a22z-3582 sealing caps for flat models a22z-3600f used to prevent dust or water from entering the operation unit (pushbutton, etc.). color: opaque material: silicon for projection models a22z-3600t for full-guard models a22z-3600g color caps red a22z-30tr used for changing the pushbutton color of the (round) pushbutton switches. cannot be used, however, with half-guard switch- es. green a22z-30tg yellow a22z-30ty white a22z-30tw blue a22z-30ta caps for a22 for projection, full-guard, or half-guard models a22z-3490 material: polycarbonate resin for m22 for round models a22z-3495 three-throw spacer --- a22z-3003 used when mounting three nonlighted switches. cannot be used with alternate, emergency stop, knob-type selector, key- type selector, or mushroom-type switches. (see page 28.) hole plug round a22z-3530 can be plugged into pre-cut panel holes for future expansion. the color is black. control boxes (enclosures) one hole exclusively for a22 a22z-b101 for those designed exclusively for a22, dpst-no or dpst-nc switches cannot be used. a3t-compatible control boxes, a22-series alternate operation models, and dpst-no, dpst-nc, and spst-no + spst-nc con- tacts cannot be used. material: polycarbonate resin compatible with a3t a22z-b201 one hole, yellow box (for emergency stop) exclusively for a22 a22z-b101y compatible with a3t a22z-b201y two holes exclusively for a22 a22z-b102 compatible with a3t a22z-b202 three holes exclusively for a22 a22z-b103 compatible with a3t a22z-b203 connectors applicable cable diameter (mm) 7 to 9 dia. a22z-3500-1 plastic connector used to extend a cable from the switch box. (see 9 to 11 dia. a22z- 3500-2 page 27.) 9 to 11 dia. a22z-3500-2 http://www.ia.omron.com/ 10 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information item appearance classification model remarks 25-dia. ring --- a22z-r25 use when mounting to a panel with a 25-dia. hole. for details, refer to page 18. since this is not at- tached to the main body, order separately. 30-dia. resin attach- ment round a22z-a30 use when mounting to a panel with a 30-dia. hole. for details, refer to page 20. lock plate --- a22z-3380 use to fix the lever on the switch. simple protective cover --- a22z-3700 prevents foreign matter entering into the switch from the back of the panel. ratings and characteristics: see pages 13 to 14. precautions for correct use: see page 23. dimensions: see page 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 11 (c)copyright omron corporation 2007 all rights reserved.
a22 ordering information tools item appearance classification model remarks snap-in legend plates standard size without text black a22z-3443b attached to the stan- dard-size legend plate frame. (see page 28.) material: acrylic red a22z-3443r white a22z-3443w transparent a22z-3443c with text white text on red background ? a22z-3443r-2 stop a22z-3443r-4 stop a22z-3443r-j4 black text on red background emergency stop a22z-3443r-j1 white text on black background | a22z-3443b-1 start a22z-3443b-3 on a22z-3443b-5 off a22z-3443b-6 up a22z-3443b-7 down a22z-3443b-8 power on a22z-3443b-9 off-on a22z-3443b-10 auto a22z-3443b-j1 manual a22z-3443b-j2 start a22z-3443b-j3 reset a22z-3443b-j4 on a22z-3443b-j5 off a22z-3443b-j6 power on a22z-3443b-j7 run a22z-3443b-j8 up a22z-3443b-j9 down a22z-3443b-j10 off-on a22z-3443b-j11 manual-auto a22z-3443b-j12 reverse-forward a22z-3443b-j13 close-open a22z-3443b-j14 manual off auto a22z-3443b-j15 large size without text black a22z-3453b used as an emergency stop switch legend plate. (see page 28.) material: acrylic red a22z-3453r white a22z-3453w transparent a22z-3453c for emer- gency stop switch black text on yellow back- ground 60-dia. round plate with black letters on a yellow background a22z-3466-1 emergency stop is engraved on the plate. used as an emergency stop switch legend plate 90-dia. round plate with black letters on a yellow background a22z-3476-1 no print (round) a22z-3460 after printing on a film, af- fix to the indicator plate of the lighted pushbutton switch. (the back is coated with adhesive.) character films character print (round) | a22z-3460-1 ? a22z-3460-2 start a22z-3460-3 stop a22z-3460-4 no print (square) a22z-3480 item appearance classification model remarks lamp extractor --- a22z-3901 rubber tool used to easily replace lamps tightening wrench --- a22z-3905 used to tighten mounting nuts from the back of the panel and to replace the cap of the lighted emergency switch. cap tightening tool --- a22z-3908 used for replacing the cap of the half- guard pushbutton switch. cap puller --- a3pj-5080 used for removing the cap from the pushbutton of the square lighted push- button switch. ratings and characteristics: see pages 13 to 14. precautions for correct use: see page 23. dimensions: see page 16. accessories and tools: see pages 10 to 12. http://www.ia.omron.com/ 12 (c)copyright omron corporation 2007 all rights reserved.
a22 specifications approved standard ratings ul, cul (file no. e41515) 6 a at 220 vac, 10 a at 110 vac en60947-5-1 (low voltage directive) 3 a at 220 vac ccc (gb14048.5) 3 a at 240 vac, 1.5 a at 24 vdc ratings contacts (standard load) note: 1. the above ratings were obtained by conducting tests under the following conditions. (1) ambient temperature: 20 r 2 q c (2) ambient humidity: 65 r 5% rh (3) operating frequency: 20 operations/minute 2. minimum applicable load: 10 ma at 5 vdc contacts (microload) led indicators note: values in parentheses are for blue pushbuttons. super-bright led indicator incandescent lamp voltage-reduction lighting contacts (standard load) rated voltage rated current (a) induc- tive load resis- tive load induc- tive load resis- tive load 10a 24 vac 10 10 --- --- 110 vac 5 10 220 vac 3 6 380 vac 2 3 440 vac 1 2 24 vdc --- --- 1.5 10 110 vdc 0.5 2 220 vdc 0.2 0.6 380 vdc 0.1 0.2 rated applicable load 50 ma at 24 vdc (resistive load) minimum applicable load 1 ma at 5 vdc rated voltage rated current operating voltage 6 vdc 60 ma (20 ma) 6 vdc r 5% 6 vac 60 ma (20 ma) 6 vac r5% 12 vac/vdc 30 ma (10 ma) 12 vac/vdc r5% 24 vac/vdc 30 ma (10 ma) 24 vac/vdc r5% rated voltage rated current operating voltage 24 vac/vdc 15 ma 24 vac/vdc r5% rated voltage rated current operating voltage 6 vac/vdc 200 ma 5 v 14 vac/vdc 80 ma 12 v 28 vac/vdc 40 ma 24 v rated voltage operating voltage applicable lamp (ba9s/base: 13) 110 vac 100 vac (95 to 115 v) led lamp (a22-24a @ ) 220 vac 200 vac (190 to 230 v) http://www.ia.omron.com/ 13 (c)copyright omron corporation 2007 all rights reserved.
a22 specifications characteristics *1. malfunction within 1 ms. *2. with no icing or condensation. *3. degree of protection from the front of the panel. operating characteristics (for spst-no/spst-nc) * rotation torque for emergency stop pushbutton, knob-type selector, and key-type selector switches. type pushbutton switches emergency stop switches knob-type selector switches key-type selector switch indicator item non-lighted models: a22-f a22-t a22-g a22-h a22-s a22-m a22-c a22-d lighted models: a22l-t a22l-g a22l-h a22l-c a22l-d non-lighted model: a22e lighted model: a22el non-lighted model: a22s lighted model: a22w non-lighted model: a22k m22 allowable operating frequency mechanical momentary operation: 60 operations/minute max. 30 operations/minute max. manual reset: 30 operations/minute max. automatic reset: 30 operations/minute max. --- electrical 30 operations/minute max. --- insulation resistance 100 m : min. (at 500 vdc) dielec- tric strength between termi- nals of same polarity 2,500vac, 50/60hz for 1min between each ter- minal and ground 2,500vac, 50/60hz for 1min vibration resis- tance malfunction * 1 malfunction * 2: 10 to 55 hz, 1.5-mm double amplitude shock re- sistance destruction 1,000 m/s 2 1,000 m/s 2 1,000 m/s 2 1,000 m/s 2 1,000 m/s 2 1,000 m/s 2 1,000 m/s 2 malfunction * 1 1,000 m/s 2 max. 600 m/s 2 max. 250 m/s 2 max. 1,000 m/s 2 max. 600 m/s 2 max. 1000 m/s 2 max. 600 m/s 2 max. durability mechanical momentary operation: 5,000,000 operations min. 300,000 operations min. 500,000 operations min. 100,000 operations min. 500,000 operations min. --- electrical 500,000 operations min. 300,000 operations min. 500,000 operations min. 100,000 operations min. 500,000 operations min. --- ambient operating temperature * 2 20 q c to 70 q c 20q c to 55 q c 20 q c to 70 q c 20 q c to 55 q c 20 q c to 70 q c 20 q c to 55 q c 20 q c to 70 q c 20 q c to 55 q c ambient operating humidity 35% to 85% rh ambient storage tempera- ture * 2 40q c to 70 q c degree of protection * 3 ip65 (oil-resistant) ip65 ip65 (oil-resistant) ip65 ip65 (oil-resistant) ip65 ip65 (oil-resistant) ip65 electric shock protection class class ii pti (tracking characteristic) 175 degree of contamination 3 (iec947-5-1) type pushbutton switches emergency stop switches knob-type selector key-type selector switch item lighted nonlighted pushbutton switches push-lock turn reset system/ push-lock, key reset push-pull manual reset automatic reset manual reset automatic reset a22-f a22-t a22-g a22-h a22-c a22-d a22-s a22-m a22l-t a22l-g a22l-h a22l-c a22l-d a22e a22el a22e- @ k a22e- @ p a22s a22w a22k total travel force (ttf) max. 29.4 n 44.1 n 58.8 n 0.34 n m * 0.25 n m for two notches * 0.34 n m for three notches * 0.34 n m * 0.25 n m for two notches * 0.34 n m for three notches * total travel (tt) 5.5 mm max. 10 r 1 mm 5.5 r 1 mm approx. 90 q for two notches (approx. 45 q for three notches) approx. 90 q for two notches (approx. 45 q for three notches) resetting force (rf) min. --- 0.25 n m max. * 58.8n max. 0.34 n m max. * --- 0.34 n m max. * --- http://www.ia.omron.com/ 14 (c)copyright omron corporation 2007 all rights reserved.
a22 nomenclature model structure pushb utton lock ring lamp ? light source led lamp incandescent lamp switch ? contacts ? lighting method non-lighted: red, green, ye l l o w, white , blue , black lighted: red, gr een yello w, white , blue spst- no , spst- nc , spst- no + spst- nc , spst- no + spst- no , spst- nc + s pst- nc (minim um applicab le load: 10 ma at 5 vdc) non-lighted lighted (wi thout voltage reduction unit) lighted (wi th voltage reduction un it) the ab ove illustr ation sho ws a lighted model. ? a va ilab le colors http://www.ia.omron.com/ 15 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) lighted/non-lighted pus hbutton switches (t he following illustrations are for momentary operation.) note: lighted models have the same dimensions as shown above, whether they are with or without voltage reduction units. * alternate operation models are 9.3 mm longer. 1.8 5.9 0.5 27r 34 36 12 30 28 29.7 dia. 54.7 * 0.5 1.8 5.9 29.7 dia. 12 64 34 1.8 5.9 0.5 44 12 29.7 dia. 72.7 * flat type/a22-f for spst-no (spst-nc) switches for spst-no (spdt-nc) alternate operation switches for dpst-no (dpst-nc) monoblock-contact switches 29.7 dia. 5.9 1.8 0.5 18.5 34 12 54.7 * half-guard type/a22-h/a22l-h 1.8 5.9 0.5 34 19 54.7 * 29.7 dia. 23.9 dia. projection type/a22-t/a22l-t 1.8 5.9 0.5 34 19 29.7 dia. 54.7 * full-guard type/a22-g/a22l-g 1.8 5.9 0.5 34 32 40 dia. 54.7 * 40-dia. mushroom type/a22-m 1.8 5.9 0.5 34 54.7 * 18 12 25.6 25.6 29.8 29.8 square/projection type/a22-c/a22l-c 1.8 5.9 0.5 34 18 5.3 54.7 * 8 29.8 29.8 square/full-guard type/a22-d/a22l-d http://www.ia.omron.com/ 16 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) terminal arrangement (bottom view) terminal connection panel cutouts lock ring is provided as a standard item. x when applying coating such as paint to the panel, the dimensions should be those after the application of coating. x recommended panel thickness: 1 to 5 mm. x use an a22z-r25 ring when mounting to a panel with 25-mm holes. non-lighted (spst-no + spst-nc) lighted (spst-no + spst-nc) non-lighted (dpst-no + dpst-nc) item terminal connection non-lighted (spst-no + spst-nc) non-lighted (dpst-no + dpst-nc) lighted without voltage reduction unit (spst-no + spst-nc) lighted with voltage reduction unit (spst-no + spst-nc) 16.7 20.7 swi tch blocks m3.5 scre w 22 10 swi tch blocks lamp socket 12 20.7 swi tch blocks 32 3 4 1 2 botto m view 11 21 22 12 13 23 24 14 botto m view 1 2 x2 x1 x (?) (+) 3 4 botto m view 3 4 x1 x2 1 2 x botto m view 22.3 +0.4 0 25 +0.5 0 dia. dia. http://www.ia.omron.com/ 17 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) accessories 0.3 0.1 27 8.3 40.8 30.3 15 20.5 2.8 29.8 28 dia. 28 dia. 0.3 1.5 0.3 2.2 22.2 dia. legend plate frames standard models a22z-332 27 18 50.8 30.3 15 20.5 2.8 29.8 28 dia. 28 dia. 0.3 1.5 0.3 2.2 0.3 0.1 22.2 dia. large a22z-333 10.6 dia. 9.5 dia. 20.41 .5 ba9s/13 model indicati on lamp led a22-6 , 12 , 24 28 max. 10 1 dia. ba9s/13 incandescent lamp a22-5, 12, 24 22.2 dia. 2.8 20.5 30 dia. 2 1 lock ring a22z-3360 0.5 1.3 22 dia. 24.8 dia. 27 dia. 25-dia. ring a22z-r25 23.4 dia. 10.2 color cap a22z-30t 30 dia. 13 2.5 1 6 hole plug (round) a22z-3530 1 17.6 19.6 dia. 5.2 17.9 dia. caps a22 (for round models) a22z-3490 17.6 22.5 1 11.1 24.1 dia. 21.4 dia. 21.1 dia. 23.7 dia. m22 (for round models) a22z-3495 http://www.ia.omron.com/ 18 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) 32 dia. 16.6 22.2 dia. 33 dia. 1r 31.5 dia. 24 22.2 dia. 32.5 dia. 1r 32 dia. (26 dia.) 22.2 dia. 33 dia. r1 r2 14.5 23 sealing caps for flat models a22z-3600f for projection models a22z-3600t for full-guard models a22z-3600g 28.7 dia. 24 0.2 0 29.7 0.3 dia. m27 p=1 5 11.5 dia. 5 18.5 28.7 dia. 24 0.2 0 29.7 0.3 dia. m27 p=1 dia. metallic bezel rings for flat/projection models a22z-3580 for full-guard models a22z-3582 26.8 8.2 1 26.8 17.9 1 snap-in legend plates for standard models a22z-3443 - for large models a22z-3453 e e e m r n c y s t o p g t1 black lette rs ye l l o w 22.2 dia. 90 dia. e e e m r n c y s t o p g 60 dia. 22.2 dia. t1 ye l l o w black lette rs for emergency-stop models a22z-3476-1 (90 dia.) a22z-3466-1 (60 dia.) 17 0.2 t0 .22 17 0.2 1.2 0.2 0 1.2 0.2 0 0.1 0.2 19.4 character film for round models a22z-3460- 21.5 21.5 0.2 0.3 t0 .22 for square models a22z-3480 http://www.ia.omron.com/ 19 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) 8.5 dia. 11 dia. 12.5 17.5 55 8 dia . lamp extractor a22z-3901 30 dia. 4.5 20 902 19.2 dia. 21.2 dia. 25 dia. tightening wrench a22z-3905 5 dia. 20. 523.4 1 30 cap tightening tool a22z-3908 6.1 3.8 20.5 2.8 22.2 dia. 34.7 dia. 30-dia. resin attachment a22z-a30 2.52 .5 5 10 20 15 50 25 2 0.3 cap pul a3pj-5080 34.5 30.1 5.3 7.3 dia. 13.2 4 5 10 16.5 4 9.7 18 8 lock plate a22z-3380 2.8 78.8 16.5 22.5 dia. 56 20.5 47.2 47 50 0.3 recess 42.2 29.5 9 57.5 25.1 30 30 simple protective cover a22z-3700 10.8 6 2.5 13.7 dia. 12.9 dia. 9 11 6.1 3.4 14.2 dia. three-throw spacer a22z-3003 http://www.ia.omron.com/ 20 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) control box (enclosure) a22z-b10 @ 20.5 0.1 2.8 0.1 22.1 dia. 0.3 0.1 10 75 68 36 20 41 69.5 fou r, 4x38 tapping scre ws (10x36) 0.6-mm concave su r face (lead cab le hole) t w o , 21 dia. 41 32 39 56 (lead cab le hole) t w o mounting holes 16 1 dia. a22z-b101 (one hole) a22z-b101y cable port hole (top view) 41 16 1 dia 94 101 56 20 41 69.5 0.3 0.1 36 68 10 137 50 20.5 0.1 2.8 0.1 (10x36) 0.6-mm concave su r face (lead cab le hole) (lead cab le hole) fou r, 4x38 tapping scre ws t w o mounting holes t w o , 21 dia. t w o , 22.1 a22z-b102 (two holes) cable port hole (top view) 0.3 0.1 36 68 10 199 50 50 20 41 69.5 56 163 156 41 16 1 dia. (10x36) 0.6-mm concave su r face (lead cab le hole) (lead cab le hole) three , 22.1 dia. fou r, 4x38 tapping scre ws t w o mounting holes t w o , 21 dia. 20.5 0.1 2.8 0.1 a22z-b103 (three holes) cable port hole (top view) 6.3 4.3 3r (panel mounting hole) http://www.ia.omron.com/ 21 (c)copyright omron corporation 2007 all rights reserved.
a22 dimensions (unit: mm) control box a22z-b20 @ 16 30.5 60 22.1 dia. 10 68 20.5 2.8 68 36 40 54 fou r, m4 phillips binding scre ws (10 36) 0.6-mm concave su r face t w o , 21 dia. case (b lack) cove r (gr ay) t w o , 19 dia. (base) 21 dia. (both sides) t w o mounting holes a22z-b201 (one hole) a22z-b201y cable port hole (top view) 40 78 98 54 16 30.5 60 t w o , 22.1 dia. 36 68 10 134 50 20.5 2.8 fou r, m4 phillips binding scre ws (10 36) 0.6-mm concave su r face t w o , 21 dia. case (b lack) cove r (gr ay) t w o , 19 dia. (base) 21 dia. (both sides) t w o mounting holes a22z-b202 (two holes) cable port hole (top view) 16 30.5 60 36 68 10 194 50 50 20. 5 2.8 40 54 158 138 fou r, m4 phillips binding scre ws (10 36) 0.6-mm concave su r face t w o , 21 dia. case (b lack) cove r (gr ay) t w o , 19 dia. (base) 21 dia. (both sides) t w o mounting holes three , 22.1 dia. a22z-b203 (three holes) cable port hole (top view) 6.3 4.3 3r (panel mounting hole) http://www.ia.omron.com/ 22 (c)copyright omron corporation 2007 all rights reserved.
a22 safety precautions refer to safety precautions for all pushbutton switches . do not apply a voltage between the incandescent lamp and the terminal that is greater than the rated voltage. if the incandescent lamp is broken, the operation units may pop out. always turn off the power and wait for 10 minutes before replacing the incandescent lamp. if the lamp is replaced immediately after the power is turned off, the remaining heat may cause burns. mounting x do not perform wiring with power supplied to the switch. do not touch the terminals or other charged parts of the switch while power is being supplied. doing so may result in electric shock. x always make sure that the power is turned off before mounting, removing, or wiring the switch, or performing maintenance. do not tighten the mounting ring more than necessary using tools such as pointed-nose pliers. doing so will damage the mounting ring. the tightening torque is 0.98 to 1.96 n m. x recommended panel thickness: 1 to 5 mm. wiring x when dc-specific leds are used, wire the switch so that the x1 terminal is positive. x terminal screws must be phillips or slotted m3.5 screws with a square washer. x the tightening torque is 1.08 to 1.27 n m. x solid wires, stranded wires, and crimp terminals can be connected to the switch. applicable wire size stranded wire: 2 mm 2 max. solid wire: 1.6 dia. max. bare crimp terminals crimp terminals with insulating sheath x after wiring the switch, maintain an appropriate clearance and creepage distance. operating environment x the ip65 model is designed with a degree of protection so that it will not sustain damage if it is subjected to water from any direction to the front of the panel. x this switch is intended for indoor use only. using the switch outdoors will result in failure. led x the led current-limiting resistor is built-in, so internal resistance is not required. x if commercially available leds are used, select the ones that meet the following conditions: base: ba9s/13 overall length: 26 mm max. power consumption: 2.6 w max. others x if the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after the coating. x do not subject the switch to extreme shock or vibration. doing so will cause malfunctions and damage to the switch. using the microload x insert a contact protection circuit, if necessary, to prevent the reduction of life expectancy due to extreme wear on the contacts caused by loads where inrush current occurs when the contact is opened and closed. the minimum applicable load is the n-level reference value. this value indicates the malfunction reference level for the reliability level of 60% ( o 60) (conforming to jis c5003). the equation, o 60 = 0.5 x 10 6 /operations indicates that the estimated malfunction rate is less than 1/2,000,000 operations with a reliability level of 60%. warning precoutions for correct use 8 mm max. 8 mm max. 16.0 mm max. 16.0 mm max. 8 mm max. 20.2 mm max. 8 mm max. 20.2 mm max. microload area standard load area inval id area 0.1 1 10 100 1 ,000 10 ma 1 ma 5 12 24 30 0 . 16 ma 1.6 ma 100 ma current (ma) 0 volta ge (v) http://www.ia.omron.com/ 23 (c)copyright omron corporation 2007 all rights reserved.
a22 application mounting to the panel panel hole dimensions x panel hole dimensions are given below. x recommended panel thickness: 1 to 5 mm. x for 25-dia. holes, always use 25-dia. rings. (since the cutout dimensions are large, ip65 cannot be guaranteed unless 25-dia. rings are used.) x if outer surface treatment such as coating is performed for the panel, the panel dimensions after outer surface treatment must meet the specified panel dimensions. matrix installation 1. the following panel hole dimensions apply when switch unit and the standard-size legend plate frame and lock ring are mounted, and lead wires are connected directly to the switch block. 2. the following panel hole dimensions apply when the large-size legend plate frame is mounted, and when crimp terminals are connected to the switch block terminals. for 1. above: for 2. above: note: 1. the above dimensions are the minimum dimensions for when the wires described under applicable wire size on page 23 are used. if a different wires are used, the wiring dimensions may be different so determine an appropriate pitch before setup. 2. with pushbuttons of external dimensions greater than 30 mm, set the pitch according to the dimensions. (when using matrix installation for the a22-m @ , mount with a pitch of 40 mm instead of 30 mm in the diagram above.) mounting the operation unit on the panel x insert the operation unit (pushbutton, etc.) from the front surface of the panel, insert the lock ring and the mounting nut from the terminal side, then tighten the nut. before tightening, check that the rubber washer is present between the pushbutton unit and the panel. x when using a legend plate frame, put one rubber washer each between the legend plate frame and the panel and between the operation unit and the legend plate frame. (one rubber washer will be provided when one legend plate frame is ordered.) x align the lock ring with the groove in the casing, then insert the lock ring so that its edge is located on the panel side. 22.3 +0.4 0 +0.2 0 +0.4 0 22.3 25 dia. 22 dia. +0.4 0 25 +0.5 0 3.2 24.1 0.8r max . not using a lock ring using a lock ring switch blocks a a22-10, a22-10s a22-01, a22-01s 45 mm min. a22-20, a22-20s, a22-02 a22-02s, a22-11, a22-11s 55 mm min. type of crimp terminal switch blocks b bare crimp terminals a22-10, a22-10s a22-01, a22-01s 51 mm min. a22-20, a22-20s, a22-02 a22-02s, a22-11, a22-11s 61 mm min. crimp terminals with insulating sheath a22-10, a22-10s a22-01, a22-01s 60 mm min. a22-20, a22-20s, a22-02 a22-02s, a22-11, a22-11s 70 mm min. 30 a 30 b pitches a and b between the centers of the mounting holes are as follows: http://www.ia.omron.com/ 24 (c)copyright omron corporation 2007 all rights reserved.
a22 x tighten the mounting nut at a torque of 0.98 to 1.96 n m. x when using a lock ring, replace with the supplied lock ring, insert the projecting part into the lock slot, and then tighten the mounting nut. x when the panel cutout dimension is 25 dia., remove the supplied rubber washer and mount the 25-dia. ring as shown below. (since the a22z-r25 is not attached to the main body, order separately.) mounting the switch on the pushbutton unit x insert the pushbutton unit into the switch unit, aligning the arrow mark inscribed on the case with the lever on the switch blocks, then move the lever in the direction indicated by the arrow in the following figure. removing the switch x move the lever in the direction indicated by the arrow in the following figure, then pull the pushbutton unit or the switch blocks. since the lever has a hole with an inside diameter of 6.5 mm, the lever can be moved in the specified direction by inserting a screwdriver into the hole and then moving the screwdriver. mounting/replacing the color cap projection, fall-guard x grip and rotate the color cap with your fingers. half-guard indicators x put the tips of the cap tightening tool (a22z-3908) into the color cap slot and turn the tool. assembling the cap lighted pushbutton switch x mount the color cap so that the protrusions inside the cap fit into the grooves in the pushbutton unit. indicator x mount the color cap so that the protrusions inside the pushbutton unit fit into the grooves in the cap. hold here rubb er w asher mounting nut panel projecting par t lock ring panel lock ring 22.3 dia. 0.51 .3 lock ring mounting nut panel 25 dia. 25 dia. 22.3 dia. 25-dia. ring (a22z-r25) 22 dia. oper ation unit oper ation unit arro w mar k leve r scre wdri ve r protr usion inside cap color cap protr usion gr ooves cap color cap http://www.ia.omron.com/ 25 (c)copyright omron corporation 2007 all rights reserved.
a22 square pushbutton/indicator x square pushbutton/indicator insert the protruding tip of the cap puller (a3pj-5080) into the cap slot, hold the plate spring, and pull them to remove the color cap. x mounting the color cap: mount the color cap on the flange and firmly push the color cap. when the color cap is inserted, check whether it operates properly. when replacing the lamp, remove the color cap and diffusion plate with fingers or cap puller. attach the character film properly so that it fits inside the protruding part of the diffusion plate. then, match the diffusion plate to the square flange and insert the cap. emergency stop switch x insert the protrusion of the tightening wrench (a22z-3905) into the cap slot and then turn to remove the cap. installing/replacing the lamp installing/replacing from the panel surface x insert the lamp extractor (a22z-3901) into the lamp, then rotate the extractor while pressing it. installing/replacing on the switch x grip the lamp with your fingers, then rotate the lamp while pressing it against the switch. control box (enclosure) mounting the switch the standard-size legend plate frame can be mounted. mount the frame as shown in the following diagram. mount the switch in the same way as for an ordinary panel. creating a cable port hole place the tip of a screwdriver on the surface where the cable port hole is to be created with the cover attached and strike the screwdriver with a hammer to punch four holes. plate spri ng flange diffusion plate char acter film color cap snap-in legend plate switch box scre wdri ve r gr oove side m ake four holes in diagonal lines . cove r cab le por t hole http://www.ia.omron.com/ 26 (c)copyright omron corporation 2007 all rights reserved.
a22 securing the connector cable 1. insert the connector into the cable port hole in the box and secure with the fixing nut inside the box. 2. open a hole in the thin rubber section of the rubber ring. 3. pass the tightening cap through the cable, insert the cable into the connector, and tighten the hexagonal nut to secure the cable. installing the switch blocks x hook the small protrusion on the switch block into the groove on the mounting latch on the other side of the lever, then push up the switch block in the direction indicated by the arrow in the figure below. removing the switch blocks x insert a screwdriver between the mounting latch and the switch block, then push down the screwdriver in the direction indicated by the arrow in the following figure. wiring wiring round crimp terminals x loosen the terminal screw from the switch unit until it completely comes off the groove, insert a screwdriver as shown in the following figure, then push up the washer in the direction indicated by the arrow to temporarily secure it. now, a round crimp terminal can be connected. after inserting the terminal, tighten the screws to complete wiring. engraving x engrave the characters on the surface on the cap. make sure that the characters are aligned parallel to the imaginary line connecting the two protruding portions to the left and right of the cap. x the characters must not be engraved deeper than 0.5 mm. apply an alcohol-based paint coating, such as melamine, alkyd, or acrylic resin paint coating, to the engraved characters. cable diameter connector 7 to 9 dia. a22z-3500-1 9 to 11 dia. a22z-3500-2 fixing nut rubb er w asher connector tightening cap cab le insi de outside box mounting latch leve r protr usion swi tch block use either of the follo wing scre wdri ve rs . flat-head scre wdri ve r phillips scre wdri ve r 3 to 6 mm 3 to 6 mm scre wdri ve r scre wdri ve r w asher scre w protr uding por tions on cap http://www.ia.omron.com/ 27 (c)copyright omron corporation 2007 all rights reserved.
a22 affixing character film x hold the cap, remove the cardboard on the film, and attach the film to the cap. make sure that the protruding portions of the cap engage he cutout portions of the film and that the characters are aligned parallel to the imaginary line connecting the two protruding portions to the left and right of the cap. mounting and dismounting snap-in legend x press and secure the snap-in legend plate onto the legend plate frame. x the direction of the characters will vary with the mounting direction of the control panel if the switch is a knob or key selector model. x to easily remove the snap-in legend plate from the legend plate frame mounted to the panel, insert a tool with a thin tip into the space between the snap-in legend plate and the legend plate frame. x the snap-in legend plate is easily removed by pressing the snap- in legend plate from the back of the legend plate frame. x the legend plate frame is made of acrylic resin, which is easily damaged by shock. be sure to handle the legend plate frame with care. engraving method material: acrylic x engrave the characters directly on the matted side of the snap-in legend plate. x the characters must be engraved no deeper than 0.5 mm. x apply alcohol-based paint coating to the engraved characters. x if the snap-in legend plate is transparent, engrave the mirror- written characters on the back of the snap-in legend plate and apply paint coating to the characters. then apply paint coating of a different color to the remaining part of the snap-in legend plate. mounting three-throw spacer press and secure the two protruding portions of the three-throw spacer to the two indented portions of the inner side of the control panel. protr uding por tions on cap r emove the cardboard. legend plate f r ame snap-in legend plate concave su r face http://www.ia.omron.com/ 28 (c)copyright omron corporation 2007 all rights reserved.
a22 mounting the 30-dia. resin attachment mounting the 30-dia. metal flange pushb utton rubb er w asher (oper ation un it mounting par t) rubb er w asher (included) mounting panel lock ring mounting ring attachment pushb utton rubb er w asher (oper ation un it mounting par t) metal flange rubb er w asher (included) mounting panel lock ring mounting ring http://www.ia.omron.com/ 29 (c)copyright omron corporation 2007 all rights reserved.
safety precautions for all pushbutton switches for the individual precautions for a switch, refer to the safety precautions in the section for that switch. do not perform wiring with power supplied to the switch. do not touch the terminals or other charged parts of the switch while power is being supplied. doing so may result in electric shock. do not apply a voltage between the incandescent lamp and the terminal that is greater than the rated voltage. doing so may damage the lamp or led and cause the operation unit to pop out. always turn off the power and wait for 10 minutes before replacing the incandescent lamp. if the lamp is replaced immediately after the power is turned off, the remaining heat may cause burns. for details, refer to the precautions for correct use in the technical guide for pushbutton switches . warning caution precautions for correct use http://www.ia.omron.com/ c-1 (c)copyright omron corporation 2007 all rights reserved.
technical guide for pushbutton switches precautions for correct use of pushbutton switches for the individual precautions for a switch, refer to the precautions in the section for that switch. electrical characteristics 1. operating load x the switching load capacity of the switch greatly varies between ac and dc. always be sure to apply the rated load. the control capacity will drastically drop if it is a dc load. this is because a dc load has no current zero-cross point, unlike an ac load. therefore, if an arc is generated, it may continue for a comparatively long time. furthermore, the current direction is always the same, which results in a contact relocation phenomena whereby the contacts easily stick to each other and do not separate when the surfaces of the contacts are uneven. x some types of load have a great difference between normal current and inrush current. make sure that the inrush current is within the permissible value. the greater the inrush current in the closed circuit is, the greater the contact abrasion or shift will be. consequently, contact weld, contact separation failures, or insulation failures may result. furthermore, the switch may be broken or damaged. x if the load is inductive, counter-electromotive voltage will be generated. the higher the voltage is, the higher the generated energy will be, which will increase the abrasion of the contacts and contact relocation phenomena. be sure to use the switch within the rated conditions. inrush current x approximate control capacities are given in ratings tables, but these alone are insufficient to guarantee correct operation. for special types of load, with unusual switching voltage or current waveforms, test whether correct operation is possible with the actual load before application. x when switching for microloads (voltage or current), use a switch with microload specifications. the reliability of silver-plated contacts, which are used in switches for standard loads, will be insufficient for microloads. x when switching microloads or very high loads that are beyond the switching capacity of the switch, connect a relay suitable for the load. type of load vs. inrush current all the performance ratings given are for operation under the following conditions unless otherwise specified. inductive load : a minimum power factor of 0.4 (ac) and a maximum time constant of 7 ms (dc) lamp load: an inrush current 10 times higher than the steady-state current motor load: an inrush current 6 times higher than the steady-state current note: inductive loads can cause prob lems especially in dc circuitry. therefore, it is essential to know the time constants (l/r) of the load. 2. load connections do not contact a single switch to two power supplies that are different in polarity or type. connection of different polarities the power supply may short-circuit if the loads are connected in the way shown in the "incorrect" example below. even in the "correct" example, note that the insulation performance of the switch may deteriorate and the switch life may be shortened because loads are connected to both contacts. connection of differ ent power supplies the dc and ac power may be mixed for the circuit shown below. do not design a circuit where voltage is imposed between contacts, otherwise contact weld may result. t o (steadystate current) i (inrush current) i (a) t relay (approxi- mately 4 to 5 times higher) motor (approximately 5 to 10 times higher) incandescent lamp (approximately 10 to 15 times higher) solenoid (approximately 10 to 20 times higher) i (a) load load load load incorrect correct connect the load to the same polarity. load load ac dc incorrect load 100 v 200 v incorrect http://www.ia.omron.com/ c-2 (c)copyright omron corporation 2007 all rights reserved.
technical guide for pushbutton switches 3. contact protective circuit apply a contact protective circuit to extend the contact life, prevent noise, and suppress the generation of carbide or nitric acid. be sure to apply the contact protective circuit correctly, otherwise an adverse effect may occur. the following provides typical examples of contact protective circuits. if the limit switch is used in an excessively humid location for switching a load that easily generates arcs, such as an inductive load, the arcs may generate nox, which will change into hno 3 if it reacts with moisture. consequently, the internal metal parts may corrode and the limit switch may fail. be sure to select the ideal contact preventive circuit from the following. typical examples of contact protective circuits do not apply contact protective circuits as shown below. 4. switching x do not use the switch for loads that exceed the rated switching capacity or other contact ratings. doing so may result in contact weld, contact separation failures, or insulation failures. furthermore, the switch may be broken or damaged. x do not touch the charged switch terminals while power is supplied, otherwise an electric shock may be received. x the life of the switch varies greatly with switching conditions. before using the switch, be sure to test the switch under actual conditions. make sure that the number of switching operations is within the permissible range. if a deteriorated switch is used continuously, insulation failures, contact weld, contact failures, switch damage, or switch burnout may result. x do not apply excessive or incorrect voltages to the switch or incorrectly wire the terminals. otherwise, the switch may not function properly and have an adverse effect on external circuitry. furthermore, the switch itself may become damaged or burnt. x do not use the switch in locations where flammable or explosive gases are present. otherwise switching arcs or heat radiation may cause a fire or explosion. x do not drop or disassemble the switch, otherwise it may not be capable of full performance. furthermore, it may be broken or burnt. circuit example applicable current feature and details element selection ac dc cr circuit * yes * when ac is switched, the load impedance must be lower than the cr impedance. c: 1 to 0.5 p f u switching current (a) r: 0.5 to 1 :u switching voltage (v) the values may change according to the characteristics of the load. the capacitor suppresses the spark discharge of current when the contacts are open. the resistor limits the inrush current when the contacts are closed again. consider the roles of the capacitor and resistor and determine ideal capacitance and resistance values through testing. basically, use a capacitor with a dielectric strength between 200 and 300 v. when ac is switched, make sure that the capacitor has no polarity. yes yes the operating time will be greater if the load is a relay or solenoid. connecting the cr circuit in parallel to the load is effective when the power supply voltage is 24 or 48 v and in parallel to the contacts when the power supply voltage is 100 to 200 v. diode method no yes energy stored in the coil is changed into current by the diode connected in parallel to the load. then the current flowing to the coil is consumed and joule heat is generated by the resistance of the inductive load. the reset time delay with this method is longer than that in the cr method. the diode must withstand a peak inverse voltage 10 times higher than the circuit voltage and a forward current as high or higher than the load current. diode and zener diode method no yes this method will be effective if the reset time delay caused by the diode method is too long. use a zener diode with a zener voltage that is approximately 1.2 u power supply voltage as, depending on the environment, the load may not operate. varistor method yes yes this method makes use of constant-voltage characteristic of the varistor so that no high-voltage is imposed on the contacts. this method causes a reset time delay. connecting a varistor in parallel to the load is effective when the supply voltage is 24 to 48 v and in parallel to the contacts when the supply voltage is 100 to 200 v. --- this circuit effectively suppresses arcs when the contacts are off. the capacitor will be charged, however, when the contacts are off. consequently, when the contacts are on again, short-circuited current from the capacitance may cause contact weld. this circuit effectively sup- presses arcs when the contacts are off. when the contacts are on again, however, charge current will flow to the capacitor, which may result in contact weld. c power supply inductive load r c inductive load power supply r inductive load power supply inductive load power supply inductive load power supply switching a dc inductive load is usually more difficult than switching a resistive load. by using an appropriate contact protective circuit, however, switching a dc inductive load will be as easy as switching a resistive load. load power supply c load power supply c http://www.ia.omron.com/ c-3 (c)copyright omron corporation 2007 all rights reserved.
technical guide for pushbutton switches mechanical conditions operating force and operating method x fingertip operation is an important feature of pushbutton switches. in terms of switch operation, pushbutton switches differ greatly from detection switches such as microswitches. operating the switch using a hard object (e.g., metal), or with a large or sudden force, may deform or damage the switch, resulting in faulty or rough operation, or shortening of the switch life. the strength varies with the size and construction of the switch. use the appropriate switch for the application after confirming the operating method and operating force with this catalog. x the pushbutton surface is composed of resin. therefore, do not attempt to operate the pushbutton using a sharp object, such as a screwdriver or a pair of tweezers. doing so may damage or deform the pushbutton surface and result in faulty operation. mounting x switches can be broadly divided into two categories according to mounting method: panel-mounting models and pcb-mounting models. use the appropriate model for the mounting method required. basically, panel-mounting switches can withstand a greater operating force than pcb-mounting switches. if, however, the panel thickness or the panel-cutout dimensions are not suitable for the switch, it may not be able to withstand the normal operating force. with continuous mounting in particular, select a panel of a thickness that is easily sufficient to withstand the total operating force. x panel-mounting switches can be divided into two categories according to the mounting method: snap-in mounting models and screw-mounting models. snap-in mounting switches are held in place with the elasticity of resin or a metal leaf spring. do not attempt to modify the spring after mounting. doing so may result in faulty operation or damage the mounting structure. mount screw- mounting models using the screws and nuts provided (or individually specified). tighten the screws to the specified torque. mounting with different screws or nuts, or tightening beyond the specified torque may result in distortion of the inside of the case or damage to the screw section. x subjecting the switch to severe vibrations or shock may result in faulty operation or damage. also, many of the switches are composed of resin so contact with sharp objects may result in damage to the surface. this kind of damage may spoil the appearance of the switch or result in faulty operation. do not throw or drop the switch. hammer do not apply excessive or sudden force. do not use sharp objects. screwdrive r tweezers do not attempt to modify the spring after mounting. use the screws and nuts provided (or specified). snap-in mounting screw mounting do not drop or knock the switch. do not drop object s or place heavy objects on the switch. hammer screwdriver do not operate the switch with heavy or sharp objects. http://www.ia.omron.com/ c-4 (c)copyright omron corporation 2007 all rights reserved.
technical guide for pushbutton switches mounting precautions wiring ? perform wiring so that the lead wires will not be caught on other objects as this will cause stress on the switch terminals. wire the switch so that there is slack in the lead wires and fix lead wires at intermediate points. if the panel to which the switch is mounted needs to be opened and closed for maintenance purposes, perform wiring so that the opening and closing of the panel will not interfere with the wiring. ? with miniature switches, the gap between the terminals is very narrow. use protective or heat-absorbing tubes to prevent burning of the wire sheath or shorting. soldering ? there are two methods for soldering the switch: hand soldering and automatic soldering. in addition, automatic soldering itself can be divided into two types : dip soldering and reflow soldering. use the soldering method appropriate for the mounting method. typical soldering example ? do not use soldering flux that contains chlorine. doing so may result in metal corrosion. ? perform hand soldering using the appropriate soldering iron. ? with the exception of pcb-mounting switches, when performing hand soldering, hold the switch so that the terminals point downwards so that flux does not get inside the switch. ? leave a gap of at least 1 mm between the soldered parts and the surface of the case so that flux does not get inside the switch. ? when applying flux using a brush, use a sponge soaked in flux as shown below. do not apply more than is necessary. also, apply the flux with the pcb inclined at an angle of less than 80 so that flux does not flow onto the mounting surface of the switch. method soldering device application hand soldering soldering iron small quantities different materials lead wire terminals automatic soldering dip soldering jet soldering bath dip soldering bath large quantities of discrete terminals reflow soldering infrared reflow (ir) soldering bath vapor-phase (vps) reflow soldering bath large quantities of miniature smd terminals protective tube l termina lead wire large-capacity soldering iron small-capacity soldering iron used for a long time perform soldering for between 3 to 5 s with a suitable soldering iron. case terminal solder 1 mm min. lead wire flux sponge soaked in flux brush brush 80 max. http://www.ia.omron.com/ c-5 (c)copyright omron corporation 2007 all rights reserved.
technical guide for pushbutton switches ? do not place pcbs that have had flux applied or have been soldered on top of each other. otherwise, the flux on the pcbs solder surface may stain the upper part of the switch or even permeate the inside of the switch and cause contact failure. be sure to insert a special pcb stocker. ? when performing soldering with a dip soldering bath, ensure that the flux does not reach a higher level than the pcb. ? flux is especially likely to rise up at the edges of the pcb. if the switch is mounted near the edge of the pcb, create a gap between the edge by using a split pcb, and insert the pcb in the soldering bath so that the edge that is farthest from the switch enters the bath first. storage ? when the switch is left unused or stored for long periods, the ambient conditions can have a great effect on the condition of the switch. in certain environments, leaving the switch exposed may result in deterioration (i.e., oxidation, or the creation of an oxide film) of the contacts and terminals, causing the contact resistance to increase, and making it difficult to solder the lead wires. therefore, store in a well-ventilated room, inside, for example, a non-hygroscopic case, in a location where no corrosive gases are present. ? if the switch is stored in a location where it will be exposed to direct light, colored resin in the colored plate may fade. therefore, do not store the switch in locations where it will be exposed to direct light. flux do not place pcbs with solder or flux on top of each other. create distance split pcb create distance insert in soldering bath from this edge. flux is more likely to rise at the edges. http://www.ia.omron.com/ c-6 (c)copyright omron corporation 2007 all rights reserved.
2007. 3 omron corporation industrial automation company http://www.ia.omron.com/ (c)copyright omron corporation 2007 all rights reserved. in the interest of product improvement, specifications are subject to change without notice. read and understand this catalog please read and understand this catalog before purchasing the products. please consult your omron representative if you have an y questions or comments. warranty and limitations of liability warranty omron's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if speci ed) from date of sale by omron. omron makes no warranty or representation, express or implied, regarding non-infringement, merchantability, or fitness for particular purpose of the products. any buyer or user acknowledges that the buyer or user alone has determined that the products will suitably meet the requirements of their intended use. omron disclaims all other warranties, express or implied. limitations of liability omron shall not be responsible for special, indirect, or consequential damages, loss of profits, or commercial loss in any way connected with the products, whether such claim is based on contract, warranty, negligence, or strict liability. in no event shall responsibility of omron for any act exceed the individual price of the product on which liability is asserted . in no event shall omron be responsible for warranty, repair, or other claims regarding the products unless omron's analysis confirms that the products were properly handled, stored, installed, and maintained and not subject to contamination, abuse, misuse, or inappropriate modification or repair. application considerations suitability for use omron shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the product. at the customer's request, omron will provide applicable third party certi cation documents identifying ratings and limitations of use that apply to the products. this information by itself is not suf cient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. the following are some examples of applications for which particular attention must be given. this is not intended to be an exh austive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: ? outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. ? nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. ? systems, machines, and equipment that could present a risk to life or property. please know and observe all prohibitions of use applicable to the products. never use the products for an application involving serious risk to life or property without ensuring that the system as a whole has been designed to address the risks, and that the omron product is properly rated and installed for the intended use within the overall equipment or system. disclaimers change in specifications product speci cations and accessories may be changed at any time based on improvements and other reasons. it is our practice to change model numbers when published ratings or features are changed, or when signi cant construction changes are made. however, some speci cations of the product may be changed without any notice. when in doubt, special model numbers may be assigned to x or establish key speci cations for your application on your request. please consult with your omron representative at any time to con rm actual speci cations of purchased product. dimensions and weights dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. errors and omissions the information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assume d for clerical, typographical, or proofreading errors, or omissions. performance data performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. it may represent the result of omron?s test conditions, and the users must correlate it to actual application requirements. actual performance is subject to the omron warranty and limitations of liability. programmable products omron shall not be responsible for the user's programming of a programmable product, or any consequence thereof. copyright and copy permission this catalog shall not be copied for sales or promotions without permission. this catalog is protected by copyright and is intended solely for use in conjunction with the product. please notify us before copying or reproducing this catalog in any manner, for any other purpose. if copying or transmitting this catalog to another, please copy or transmit it in its entirety.

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