1 key-type selector switch a165k mounting aperture of 16 mm modular construction oil-resistant ip65 models ul and csa approved, vde (pending) conforms to en60947-5-1, iec947-5-1 short mounting depth, less than 28.5 mm below panel wide range of switching capacity from general to microload momentary and latching models available r c r ordering information construction flange shape key types ? four key types are available in addition to the standard key. protective structure and terminal type ? protective structure oil-resistant ip65 ? terminal type solder terminals (tab terminals #110) switch unit specifications ? general-purpose loads 125 vac: 5 a 250 vac: 3 a 30 vdc 3 a minimum applicable load: 1 ma at 5 vdc number of notches and reset method ? 2 notches latching momentary ? 3 notches latching momentary/latching
a165k a165k 2 model number legend 1. selector a165k- 12 1. flange shape j: rectangular a: square t: round 2. number of notches/reset method/key release position suffix notches reset method key release position 2ml 2 notches manual left 2mr right 2m right and left 2al automatic left 3mc 3 notches manual center 3mr right 3ml left 3m right, left, and center 3ac automatic center 2. switch unit (common use with knob-type selector switch) a16s- 1234 1. number of notches 2n: 2 notches 3n: 3 notches 2. contacts 1: spdt 2: dpdt 3. lighted/non-lighted none: non-lighted 4. terminals none: solder terminals (tab terminals #110) functional units shape number of notches reset method key release position model rectangular ( a165k-j ) 2 notches latching A165K-J2ML (a165k j) a165k-j2mr a165k-j2m momentary a165k-j2al 3 notches latching a165k-j3mc a165k-j3mr a165k-j3ml a165k-j3m momentary a165k-j3ac square ( a165k-a ) 2 notches latching a165k-a2ml (a165k a) a165k-a2mr a165k-a2m momentary a165k-a2al 3 notches latching a165k-a3mc a165k-a3mr a165k-a3ml a165k-a3m momentary a165k-a3ac
a165k a165k 3 shape model key release position reset method number of notches round (a165k-t) 2 notches latching a165k-t2ml a165k-t2mr a165k-t2m momentary a165k-t2al 3 notches latching a165k-t3mc a165k-t3mr a165k-t3ml a165k-t3m momentary a165k-t3ac switch units shape classification model non-lighted socket 2 notches spdt solder terminal a16s-2n1 dpdt a16s-2n2 3 notches dpdt a16s-3n2
a165k a165k 4 accessories (order separately) accessories name shape classification model remarks panel plugs rectangular a3bj-3003 used for covering the panel ttfft l i square a3ba-3003 cutouts for future panel expansion. round a3bt-3003 tools name shape model applicable types remarks pushbut- ton switch knob- type selector switch key-type selector switch emer- gency stop switch indicator screw fitting a3b-3004 yes yes yes yes yes convenient for ganged installation. tighten to a torque of 0.39 n ? m (5 kgf ? cm) min. extractor a16z-5080 yes yes yes yes yes convenient for extracting the switch unit and lamps. specifications approved standards ul, cul (file no. e41515) 5 a at 125 vac, 3 a at 250 vac (general use) 3 a at 30 vdc (resistive) en60947-5-1 (low voltage directive) ratings ac resistive load dc resistive load 3 a, 250 vac 5 a, 125 vac 3 a, 30 vdc minimum applicable load: 1 ma at 5 vdc rated values are obtained from tests conducted under the following conditions according to jis c4505 and c4520. 1. load: resistive load 2. mounting conditions: no vibration and no shock 3. temperature: 20 2 c 4. operating frequency: 20 times/min contact name contact dpdt
a165k a165k 5 characteristics item key-type selector switch allowable operating f mechanical 20 operations/min max. frequency electrical 10 operations/min max. insulation resistance 100 m w min. (at 500 vdc) dielectric strength 1,000 vac, 50/60 hz for 1 min between terminals of same polarity 2,000 vac, 50/60 hz for 1 min between terminals of different polarity and also between each terminal and ground vibration resistance malfunction 10 to 55 hz, 1.5-mm double amplitude (malfunction within 1 ms) shock resistance mechanical 500 m/s 2 (50g) malfunction 150 m/s 2 (15g) max. (malfunction within 1 ms) life expectancy mechanical 250,000 operations min. (life of key: 10,000 operations min.) electrical 100,000 operations min. ambient temperature operating: 10 c to 55 c (with no icing or condensation) storage: 25 c to 65 c (with no icing or condensation) ambient humidity operating: 35% to 85% electric shock protection class class ii pti (tracking characteristic) 175 degree of contamination 3 (iec947-5-1) weight approx. 26.5 g (in the case of a dpdt switch key) note: set and reset constitute one operation. operating characteristics type key-type selector switch features 2 notches 3 notches operating force (of) max. 9.8 n m (1,000 gf cm) set position (sp) 90 5 45 +10 / 0 operation angle note: the angle used for automatic reset is shown in parentheses. two notches three notches
a165k a165k 6 contacts notch contact spdt dpdt position sw position sw1 sw2 2 notches 3 notches ---
a165k a165k 7 dimensions note: all units are in millimeters unless otherwise indicated. key-type selector switches rectangular a165k-j solder terminals square a165k-a solder terminals round a165k-t solder terminals note: see page 8 for panel cutouts. note: see page 8 for panel cutouts. packing (t0.5) lock ring mounting nut model, standard, lot no., serial number packing (t0.5) lock ring mounting nut model, standard, lot no., serial number note: see page 8 for panel cutouts. packing (t0.5) lock ring mounting nut model, standard, lot no., serial number
a165k a165k 8 panel cutouts note: 1. make sure the thickness of the mounting panel is between 0.5 and 3.2 mm. if, however, a switch guard or dust cover is used, the thickness of the mounting panel must be between 0.5 and 2 mm. 2. if the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating. rectangular a165 -j (top view) square a165 -a round a165 -t (top view) 24 min. 19 min. 16 dia. +0.2 0 19 min. 16 dia. +0.2 0 19 min. terminal arrangement spdt switches dimensions of terminal holes terminal arrangement (bottom view) dpdt switches dimensions of terminal holes terminal arrangement (bottom view) installation for details on mounting the switch to a panel, and mounting and dismounting the switch unit, refer to installation details for the a16 pushbutton switch. flange rotation a165 key-type selector switch fix the switch screw and rotate the flange in 45 turns. flange fixing ring switch screw all dimensions shown are in millimeters. to convert millimeters into inches, multiply by 0.03937. to convert grams into ounces, multiply by 0.03527.
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