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limit and enclosed switches ex series explosion-proof switches honeywell 1 sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canadaa121 single-conduit connect switch* * see page a124 for double conduit connect switches. ex switches feature the smallest ul-listed housings available for use in hazardous lo- cations. flame paths within the housing cool exploding gases below the kindling temperature before they reach the explosive gases surrounding the housing. the enclosed switching unit, which is held in place by screws, is accessible when the cover plate is removed. a tapped conduit opening is located in one end of one group of ex listings (pages a122-a123); while a second group (page a124) has a conduit opening in each end of the switch. these switches are not sealed against liq- uids and are not intended to be subjected to liquid splash or for outdoor applications. if a sealed explosion-proof switch is required, refer to the type cx and lsx. electrical ratings circuitry electrical ratings a ul/csa rating: 15 amps, 125, 250 or 480 vac; 1 8 hp, 125 vac; 1 4 hp, 250 vac; 1 2 amp, 125 vdc; 1 4 amp, 250 vdc. single-pole double-throw b ul/csa rating: 20 amps, 125, 250 or 480 vac; 10 amps, 125 vac ``l''; 1 hp, 125 vac; 2 hp, 250 vac; single-pole 1 2 amp, 125 vdc; 1 4 amp, 250 vdc. double-throw c ul/csa rating: 10 amps, 125 or 250 vac; 0.3 amp, 125 vdc; 0.15 amp, 250 vdc. double-pole double-throw d ul/csa rating: 10 amps, 125, 250 or 480 vac; 1 2 amp, 125 vdc; 1 4 amp, 250 vdc. single-pole double-throw e ul rating: 1 amp, 125 vac. single-pole double-throw features 1 nema 1, 7 and 9 1 compact, rugged housing 1 up to 20 amp capacity 1 ample wiring space 1 mounts from 4 sides 1 roller arms adjustable through 360 1 non-sparking actuators 1 captive cover screws 1 ul listed, file #e14274 1 csa certified, file #lr57324 1 grounding screw nema nema standards: 1, 7 and 9. ul listed and csa certified: class i, div. 1, groups b, c and d (group b - only as noted in order guides); and class ii, div. 1, groups e, f and g. also refer to nema application note in the reference standards section at the rear of this catalog. temperature range ex switches are for use in a temperature range of 40 to 160 f ( 40 to 71 c). for applications outside these limits, please call the 800 number. actuators roller arm versions are designed for cam or slide operation. listings include clockwise and counterclockwise actuation. levers are adjustable through 360 . the roller is non- sparking material. the cross-roller arm switch is for use where the operating mechanism approaches from a direction perpendicular to the longitudinal axis of the switch. the overtravel plunger has a case harden- ed, radius tipped, push-rod plunger guided by a sturdy bushing. the manually operated switch has a large paddle-shaped actuator. replacement parts available replacement parts are listed on page a125. an installation sheet packed with each switch describes these parts in detail and explains how they are installed. limit / enclosed
limit and enclosed switches ex series explosion-proof switches a122 honeywell 1sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canada roller lever actuated switches auxiliary actuators order rotary actuators for the ex-ar20 from the selection shown below. roller lever 6pa5-ex (bronze roller) 6pa127-ex (nylon roller) cross roller lever 6pa131-ex (bronze roller) one-way roller lever for cw actuation: 6pa130-ex (bronze roller) for ccw actuation: 6pa142-ex (bronze roller) adjustable length roller lever 6pa138-ex (nylon roller) rod lever 6pa136-ex (aluminum rod) order guide p.t. d.t. elec. max. max. rating catalog mm o.t. mm description pg. a121 listing o.f. in. max. in. cw actuation*. 15 amp. spdt. a ex-ar 2,22-5,56 n .5-1.25 lb. 5,56 .219 (8 ) 90 0,18 .007 (0.25 ) cw actuation*. 20 amp. spdt. b exa-ar 3,34-8,90 n .75-2 lb. 5.56 .219 25 0,3 .012 (4 ) ccw actuation*. 15 amp. spdt. a ex-ar30 11,1 n 2.5 lb. max. 2,65 .065 25 0,18 .007 (0.25 ) cw or ccw actuation*. 15 amp. low o.f. (no return spring). without mtg. bracket. spdt. a ex-ar16 0,56 n 2 oz. max. ee e also ul listed and csa certified for class i group b (hydrogen) atmos- pheres. cw actuation*. 15 amp. spdt. a ex-ar800 2,22-5,56 n .5-1.25 lb. 5,56 .219 90 0,18 .007 (0.25 ) ccw actuation*. 15 amp. spdt. a ex-ar830 11,1 n 2.5 lb. max. 1,65 .065 25 0,18 .007 (0.25 ) cw actuation*. 10 amp. dpdt. c exd-ar-32 2,22-6,67 n .5-1.5 lb. 6,35 .250 25 2,77 .109 (4 ) ccw actuation*. 10 amp. dpdt. c exd-ar30-32 12,2 n 2.75 lb. 5,56 .219 25 2,77 .109 cw actuation*. 1 amp.** spdt. e exh-ar3 2,22-6,67 n .5-1.5 lb. 5,56 .219 25 0,64 .025 ccw actuation*. 1 amp.** spdt. e exh-ar33 11,1 n 2.5 lb. max. 1,65 .065 (3.5 ) 25 0,64 .025 no lever furnished. (order levers shown at left of this page as separate items.) cw actuation*. spdt. a ex-ar20 0,22 nm 31.25 in./oz. 5,56 .219 90 0,18 .007 (0.25 ) as above except ccw actuation. a ex-ar230 0,22 nm 31.25 in./oz. 5,56 .219 90 0,18 .007 (0.25 ) nm j newton meters * cw (clockwise) or ccw actuation, when looking at nameplate. ** hermetically sealed switching unit, furnished with 10.5 ft./3,2 m leadwire. 2 furnished with 0,91 m (3 ft.) leadwire characteristics; o.f. e operating force; p.t. e pretravel; o.t. e overtravel; d.t. e differential travel for rapid response off the shelf service, all bold face listings are normally stocked items. adjustable length 12.5 n max. rod lever with 1 n nylon roller. 6pa204-ex
limit and enclosed switches ex series explosion-proof switches honeywell 1sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canadaa123 cross roller lever actuated switch order guide p.t. d.t. elec. o.f. max. max. rating catalog n mm o.t. mm description pg. a121 listing oz. in. max. in. cw actuation* 15 amp. a ex-cr 2,22-5,56 5,56 90 0,18 spdt 8-20 .219 .007 one-way roller lever actuated switch order guide p.t. d.t. elec. o.f. max. max. rating catalog n mm o.t. mm description pg. a121 listing oz. in. max. in. cw actuation* 15 amp. a ex-ar128 2,22-5,56 5,56 90 0,18 spdt 8-20 .219 .007 low force rod lever actuated switch order guide o.f. elec. max. rating catalog n p.t. o.t. description pg. a121 listing oz. max. min. d.t. furnished without mounting a ex-ar1613 0,56 18 40 e bracket. cw actuation* 2 15 amp. spdt manually actuated switch order guide o.f. elec. max. rating catalog n description pg. a121 listing lb. large 3 x 3.5 inch paddle for fast, easy operation. 15 amp. a ex-ar50 11,1 spdt 2.5 overtravel plunger actuated switches order guide o.f. p.t. o.t. d.t. elec. max. max. min. max. o.p.** rating catalog n mmmmmm mm description pg. a121 listing lb. in. in. in. in. 15 amp. a ex-q 13,34 1,98 4,78 0,10 47,22 spdt 3 .078 .188 .004 1.859 20 amp. b exa-q 8,90 1,27 3,18 0,23 46,02 spdt 2 .050 .125 .009 1.812 also ul listed 15 amp a ex-q800 13,34 1,98 4,78 0,10 47,22 for class i, spdt 3 .078 .188 .004 1.859 group b 10 amps c exd-q-32 13,34 3,96 3,58 1,52 46,02 (hydrogen) dpdt 3 .156 .141 .060 1.812 atmospheres. with seal boot on plunger. d ex-n15 13,34 1,98 4,78 0,10 52,32 10 amp. spdt 3 .078 .188 .004 2.060 * cw (clockwise) or ccw actuation, when looking at nameplate. ** tolerance 1,52 in./.060 mm. 2 furnished with 0,91 m (3 ft.) leadwire. characteristics: o.f. e operating force; p.t. e pretravel; o.t. e overtravel; d.t. e differential travel n j newtons limit / enclosed
limit and enclosed switches ex series explosion-proof switches a124 honeywell 1sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canada double-conduit connect switch ex switches on this page have conduit openings on each side of the enclosure which enable through-wiring. this feature also allows the user to split the wiring of a double-pole switch, with one-pole exiting from each side. the enclosure is larger than ex switches with one conduit opening and provides ad- ditional space for wiring. nema double-conduit connect ex switches also meet the applicable portions of the nema classifications listed on page a121. roller lever actuated switches order guide p.t. d.t. elec. o.f. max. max. rating catalog n mm o.t. mm description pg. a121 listing oz. in. max. in. two 1 2 in. conduit openings. a 1ex1 2,22-5,56 5,56 90 0,18 cw actuation.* 15 amp. 8-20 .219 .007 spdt. two 1 2 in. conduit openings. b 2ex1 3,61-8,90 5,56 25 0,3 cw actuation.* 20 amp. 13-32 .219 .012 spdt. two 3 4 in. conduit openings. c 4ex1-32 2,22-6,67 6,35 25 2,77 cw actuation.* 10 amp. 8-24 .250 .109 dpdt. * cw (clockwise) or ccw actuation, when looking at nameplate. n j newtons 2 furnished with 0,91 m (3 ft.) leadwire. characteristics: o.f. e operating force; p.t. e pretravel; o.t. e overtravel; d.t. e differential travel. mounting brackets 15pa85-ex is used for top, bottom, back or end mounting. it is furnished with each switch, except where noted in the order guides. 15pa86-ex is ordered separately for top mounting of plunger switches. ex switches may also be direct mounted, using 10-32 unf screws.
limit and enclosed switches ex series explosion-proof switches honeywell 1 sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canadaa125 replacement parts catalog listing replacement part numbers switch switching listing unit actuator springs ex-ar bz-2r-p4 6pa5-ex 33pa7-ex ex-ar16 bz-2rw88-p5 6pa5-ex e ex-ar20 bz-2r-p4 * 33pa7-ex ex-ar30 bz-2r-p4 6pa5-ex 33pa5-ex ex-ar50 bz-2r-p4 6pa134-op 33pa7-ex ex-ar800 bz-2r-p4 6pa5-ex 33pa7-ex ex-cr bz-2r-p4 6pa131-ex 33pa7-ex ex-q bz-2r-p4 8pa15-ex e ex-n15 bz-2r15-p4 8pa12-ex e exa-ar ba-2r-p4 6pa5-ex 33pa6-ex exd-ar-3 dt-2r4-a7 6pa5-ex 33pa6-ex exh-ar3 4hs202 6pa5-ex 33pa6-ex exh-ar33 4hs203 6pa5-ex 33pa5-ex exd-ar30-3 dt-2r711-a7 6pa5-ex 33pa5-ex catalog listing replacement part numbers switch switching listing unit actuator spring ex-ar128 bz-2r-p4 6pa130-ex 33-PA7-EX ex-ar1613 bz-2rw88-p5 6pa136-ex e ex-q800 bz-2r-p4 8pa15-ex e exa-q ba-2r-p4 8pa15-ex e exd-q-3 dt-2r-a7 8pa77-ex e 1ex1 bz-2r-p4 6pa5-ex 33pa7ex 2ex1 ba-2r-p4 6pa5-ex 33pa6-ex 4ex1-3 dt-2r4-a7 6pa5-ex 33pa6-ex * actuators for ex-ar20 are shown on page a122. in addition to the items shown above, the following replaceable internal levers are available: 33pa1-ex for ex-ar, ex-ar800, exa-ar, exd-ar-3, exh-ar3, ex-ar20, ex-cr, ex-ar128, 1ex1, 2ex1, and 4ex1-3. mounting dimensions (for reference only) roller lever no lever cross roller lever one-way roller lever limit / enclosed
limit and enclosed switches ex series explosion-proof switches a126 honeywell 1sensing and control11-800-537-6945 usa1f1-815-235-6847 international11-800-737-3360 canada mounting dimensions (for reference only) low force rod manual actuator plunger plunger with seal boot switches with double conduit openings roller lever
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