1 enclosed switch zc- 55 small, high-precision enclosed switch employs a modified version of z basic switch as built-in switch. same mounting pitch as z basic switch. a number of switch units may be ganged for application. pre-wired molded terminal models are available. requires less operating force than conventional limit switches. long life expectancy and economical. ordering information actuator model actuator model plunger zc-d55 short hinge lever ZC-W55 panel mount plunger zc-q55 hinge lever zc-w155 panel mount roller plunger zc-q2255 short hinge roller lever zc-w255 panel mount crossroller plunger zc-q2155 hinge roller lever zc-w2155 sealed roller plunger zc-n2255 one-way action short hinge roller lever zc-w355 sealed crossroller plunger zc-n2155 one-way action hinge roller lever zc-w3155 specifications ratings rated voltage non-inductive load inductive load inrush current resistive load lamp load inductive load motor load nc no nc no nc no nc no nc no 125 v ac 10 a 3 a 1.5 a 10 a 5 a 2.5 a 30 a 15 a 250 v ac 10 a 2.5 a 1.25 a 10 a 3 a 1.5 a max. max. 8 vdc 10 a 3 a 1.5 a 6 a 5 a 2.5 a 14 vdc 10 a 3 a 1.5 a 6 a 5 a 2.5 a 30 vdc 6 a 3 a 1.5 a 5 a 5 a 2.5 a 125 vdc 0.5 a 0.4 a 0.05 a 0.05 a 250 vdc 0.25 a 0.2 a 0.03 a 0.03 a
2 note: 1. inductive loads have a power factor of 0.4 min. (ac) and a time constant of 7 ms max. (dc). 2. lamp load has an inrush current of 10 times the steady-state current. 3. motor load has an inrush current of 6 times the steady-state current. characteristics operating speed 0.05 mm to 0.5 m/s (at pin plunger) operating frequency mechanical: 120 operations/min electrical: 20 operations/min insulation resistance 100 m ? min. (at 500 vdc) contact resistance 15 m ? max.(initial) dielectric strength 1,000 v ac, 50/60 hz for 1 min between non-continuous terminals 2,000 v ac, 50/60 hz for 1 min between current-carrying metal part and ground, and between each terminal and non-current-carrying metal parts v ibration resistance malfunction: 10 to 55 hz, 1.5-mm double amplitude shock resistance destruction: 1,000 m/s 2 (approx. 100g) malfunction: 300 m/s 2 (approx. 30g) ambient temperature operating: ?10 c to 80 c (with no icing) ambient humidity operating: 35% to 95% life expectancy mechanical: 10,000,000 operations min. (at rated ot value) electrical: see ?engineering data?. enclosure ratings nema: 1, 2, 3, 4, and 5 iec: ip67 jis: jet-proof construction immersion-proof type weight approx. 1 10 g (at panel mount plunger) contact configuration com no nc operating characteristics model zc-d55 zc-q55 zc-q2255 zc-q2155 zc-n2255 zc-n2155 of max. 1 1.77 n (1,200 gf) 1 1.77 n (1,200 gf) 6.86 n (700 gf) rf min. 4.90 n (500 gf) 4.90 n (500 gf) 1.67 n (170 gf) pt max. 1.5 mm 1.5 mm 1.5 mm ot min. 2.4 mm 3 mm 2.5 mm md max. 0.2 mm 0.2 mm 0.2 mm op 32.4 0.8 mm 38.2 0.8 mm 47.4 0.8 mm model ZC-W55 zc-w155 zc-w255 zc-w2155 zc-w355 zc-w3155 of max. 3.92 n (400 gf) 2.75 n (280 gf) 3.92 n (400 gf) 2.75 n (280 gf) 3.92 n (400 gf) 2.75 n (280 gf) rf min. 0.78 n (80 gf) 0.59 n (60 gf) 0.78 n (80 gf) 0.59 n (60 gf) 0.78 n (80 gf) 0.59 n (60 gf) pt max. 5 mm (see note) 7 mm (see note) 5 mm (see note) 7 mm (see note) 5 mm (see note) 7 mm (see note) ot min. 6 mm 8.4 mm 6 mm 8.4 mm 6 mm 8.4 mm md max. 1 mm 1.4 mm 1 mm 1.4 mm 1 mm 1.4 mm op 28.5 1.2 mm 28.5 1.2 mm 43 1.2 mm 43 1.2 mm 53 1.2 mm 53 1.2 mm fp max. 34.7 mm 36.7 mm 49.2 mm 51.3 mm 59.2 mm 61.2 mm note: reference values approved standards ul (file no. e76675)/csa (file no. e45258) a300: 0.5 a at 125 vdc, 0.25 a at 250 vdc (excepting molded terminal model)
3 engineering data electrical life expectancy life expectancy (x 10 operations) 6 switching current (a) operating frequency: 20 operations/min 125 vac (cos = 1) 125 vac (cos = 0.4) 250 vac (cos = 1) 250 vac (cos = 0.4) 100 70 50 30 10 7 5 3 1 0.7 0.5 0.3 dimensions note: 1. all units are in millimeters unless otherwise indicated. 2. unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. zc-d55 zc-q55 7.8 dia. (see note) two, 4.3 0.1 dia. mounting holes terminal protective cover seal rubber two, 4.3 0.1 dia. mounting holes 22 max. 7.8 dia. (see note 1) (see note 2) seal rubber 14 dia (21 x 21) (21 x 21) terminal protective cover 22 max. two, m14 note: stainless steel plunger note: 1. stainless steel plunger 2. the length of the imperfect threads is 1.5 mm maximum. (15) (15) two hexagon nuts (thickness: 3 width: 17)
4 zc-q2255 zc-q2155 zc-n2255 zc-n2155 ZC-W55 note: stainless steel lever 11 dia. 4.7 (see note 1) terminal protective cover two, 4.3 0.1 dia. mounting holes terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber rubber boot (chloroprene rubber) 11 dia. x 4.7 (see note 1) (see note 2) 9.5 dia. 4.7 (see note) seal rubber set position indication line set position indication line 22 max. 22 max. (21 x 21) (21 x 21) (21 x 21) 22 max. terminal protective cover two, 4.3 0.1 dia. mounting holes terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber t = 1 (see note) seal rubber rubber boot (chloroprene rubber) 9.5 dia. 4.7 (see note) (21 x 21) 22 max. 22 max. (21 x 21) note: 1. stainless steel roller 2. the length of the imperfect threads is 1.5 mm maximum. note: 1. stainless steel roller 2. the length of the imperfect threads is 1.5 mm maximum. note: stainless steel roller note: stainless steel roller two, m14 two hexagon nuts (thickness: 3 width: 17) (15) two, m14 (15) two hexagon nuts (thickness: 3 width: 17) (15) (15) (15) 5
5 zc-w155 note: stainless steel lever zc-w255 zc-w2155 zc-w355 zc-w3155 terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber t = 1 (see note) 22 max. (21 x 21) 12.7 dia. 7.5 (see note 2) terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber operating direction terminal protective cover two, 4.3 0.1 dia. holes 12.7 dia. 7.5 (see note 2) operating direction angle of roller swing: 90 terminal protective two, 4.3 0.1 dia. mounting holes seal rubber t = 1 (see note 1) t = 1 (see note 1) t = 1 (see note 1) angle of roller swing: 90 seal rubber 12.7 dia. 7.5 (see note 2) 22 max. (21 x 21) 22 max. 22 max. (21 x 21) (21 x 21) note: 1. stainless steel lever 2. stainless steel roller note: 1. stainless steel lever 2. stainless steel roller note: 1. stainless steel lever 2. stainless steel roller note: 1. stainless steel lever 2. stainless steel roller (15) (15) 12.7 dia. 7.5 (see note 2) terminal protective cover two, 4.3 0.1 dia. mounting holes seal rubber t = 1 (see note 1) 22 max. (21 x 21) (15) (15) a (15) a
6 25.4 0.15 two, 4.3 dia. mounting holes or m4 screw holes mounting holes molded terminal model the molded-terminal model is available with right-hand, left-hand and underside leads and is recommended for use where the switch is exposed to dust, oil or moisture. the molded-terminal model is not approved by ul and csa. ml mr md ordering information note: when placing your order for the switch, specify the required length of v .s.f . or v .c.t . cable in addition to the model num - ber of the switch. example: standard type: zc-q2155 location of lead output: underside pre-wired terminals: com and no length of lead: 1 m (v .c.t . lead) when placing your order for the above switch, specify the model number as zc-q2155-md3 (vct 1 m). suffix by location of lead outlet location of lead output suffix for pre-wired terminal com, nc, no com, nc com, no right-hand zc- -mr zc- -mr2 zc- -mr3 left-hand zc- -ml zc- -ml2 zc- -ml3 underside zc- -md zc- -md2 zc- -md3 lead supplies leads nominal cross-sectional area no. of component wires/ component wire diameter finished outside diameter terminal connections standard length v.s.f. (single-conductor vinyl cable) 1.25 mm 2 50/0.18 dia. 3.1 mm dia. black: com white: no red: nc 1, 3, 5 m v.c.t . (vinyl cabtyre 2 conductors 3 conductors cable) 9.6 mm dia. 10.5 mm dia. operation indicator equipped model all the models can be equipped upon request with a operation indi - cator to facilitate maintenance and inspection. because the indicator is incorporated in the terminal protective cov - er, the dimensions of the limit switch are not af fected. in this model, the lead wire is to be connected to the screw terminal. (a connecting washer is provided on the tip of the lead wire). the lead wire can be connected to either the nc or no terminal. operating characteristics are the same as the standard model from which the operation indicator equipped model is fabricated. ac operation the operating voltage range is from 90 to 250 v ac. the dimensions are the same as the standard type. the top of the terminal protective cover is transparent to allow checking the opera - tion easily. when placing your order for the indicator equipped, ac-operated model, add suf fix ? l ? to the end of the model number . example: standard type: zc-q2255 indicator equipped type: zc-q2255-l
7 contact circuit nc terminal load power source neon lamp r = 240 k ? built ? in switch no terminal load power source neon lamp r = 240 k ? built ? in switch note: if the wiring is as shown above, the operation of the respec - tive parts will be as follows: contact neon lamp load actuator nc on does not operate operates off operates does not operate no on does not operate operates off operates does not operate dc operation the dc-operated is provided with an led indicator . since a rectifier stack is incorporated into the unit to permit revers - ing the polarity , this type can also operate on ac power source. the led projects from the housing for easy visibility . when placing your order , add suf fix ? l2 ? to ? l5 ? to the model number of the standard type. example: standard type: zc-q2255 indicator equipped type: zc-q2255-l2 type v oltage rating leakage current internal resistance l2 12 v approx. 2.4 ma 4.2 k ? l3 24 v approx. 2 ma 10 k ? l4 24 v approx. 1.2 ma 18 k ? l5 48 v approx. 2.1 ma 22 k ? contact circuit nc terminal load power source built ? in switch led resistance no terminal load power source built ? in switch led resistance note: if the wiring is as shown above, the operation of the respec - tive parts will be as follows: contact neon lamp load actuator nc on does not operate operates off operates does not operate no on does not operate operates off operates does not operate all dimensions shown are in millimeters. to convert millimeters into inches, multiply by 0.03937. t o convert grams into ounces, multiply by 0.03527. cat. no. c25-e1-7
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