�������������������������������������������� �������������������������������������������������������������������� ������������������������������������������������������������������ Sensing and Control �������������������������������������������������������������� Interactive ���������������������� Catalog... ������������������������������������������������������������������� ���������������������� ���������������������������������������������������������������������� ������������������������ �������������������������������������� ������� ���������������������!����������������"��������#$$$� ������������������� �������������� ��������������������� ������������������ www.honeywell.com/sensing Limit/Enclosed Limit and Enclosed Switches EX Series Explosion-Proof Switches FEATURES Single-Conduit 1 NEMA 1, 7 and 9 Connect Switch* 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 * See page A124 for double conduit connect switches. E, F and G. EX switches feature the smallest UL-listed opening is located in one end of one group Also refer to NEMA application note in the housings available for use in hazardous lo- of EX listings (pages A122-A123); while a Reference Standards section at the rear of cations. Flame paths within the housing second group (page A124) has a conduit this catalog. cool exploding gases below the kindling opening in each end of the switch. temperature before they reach the explosive These switches are not sealed against liq- TEMPERATURE RANGE gases surrounding the housing. uids and are not intended to be subjected to EX switches are for use in a temperature The enclosed switching unit, which is held in liquid splash or for outdoor applications. If a range of –40 to 160°F (–40 to 71°C). For place by screws, is accessible when the sealed explosion-proof switch is required, applications outside these limits, please call cover plate is removed. A tapped conduit refer to the type CX and LSX. the 800 number. ELECTRICAL RATINGS ACTUATORS Circuitry Electrical Ratings Roller arm versions are designed for cam or A UL/CSA Rating: slide operation. Listings include clockwise 15 amps, 125, 250 or 480 VAC; and counterclockwise actuation. Levers are 1 1 ⁄8 Hp, 125 VAC; ⁄4 Hp, 250 VAC; 1 1 adjustable through 360°. The roller is non- ⁄2 amp, 125 VDC; ⁄4 amp, 250 VDC. sparking material. Single-Pole Double-Throw The cross-roller arm switch is for use where B UL/CSA Rating: the operating mechanism approaches from 20 amps, 125, 250 or 480 VAC; a direction perpendicular to the longitudinal 10 amps, 125 VAC ‘‘L’’; axis of the switch. 1 Hp, 125 VAC; 2 Hp, 250 VAC; 1 1 Single-Pole ⁄2 amp, 125 VDC; ⁄4 amp, 250 VDC. The overtravel plunger has a case harden- Double-Throw ed, radius tipped, push-rod plunger guided by a sturdy bushing. C UL/CSA Rating: 10 amps, 125 or 250 VAC; The manually operated switch has a large 0.3 amp, 125 VDC; 0.15 amp, 250 VDC. paddle-shaped actuator. Double-Pole REPLACEMENT PARTS Double-Throw Available replacement parts are listed on D UL/CSA Rating: page A125. An installation sheet packed 10 amps, 125, 250 or 480 VAC; with each switch describes these parts in 1 1 ⁄2 amp, 125 VDC; ⁄4 amp, 250 VDC. detail and explains how they are installed. Single-Pole Double-Throw E UL Rating: 1 amp, 125 VAC. Single-Pole Double-Throw Honeywell1 Sensing and Control 1 1-800-537-6945 USA1 F1-815-235-6847 International 1 1-800-737-3360 Canada A121 Limit and Enclosed Switches EX Series Explosion-Proof Switches ROLLER LEVER ACTUATED ORDER GUIDE SWITCHES 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 5,56 90° 0,18 .5-1.25 lb. .219 .007 (8°) (0.25°) CW actuation*. 20 amp. SPDT. B EXA-AR 3,34-8,90 N 5.56 25° 0,3 .75-2 lb. .219 .012 (4°) CCW actuation*. 15 amp. SPDT. A EX-AR30 11,1 N 2,65 25° 0,18 2.5 lb. max. .065 .007 (0.25°) CW or CCW actuation*. 15 amp. A EX-AR16 0,56 N —— — Low O.F. (no return spring). 2 oz. max. AUXILIARY ACTUATORS Without mtg. bracket. SPDT. Order rotary actuators for the EX-AR20 from Also UL CW actuation*. A EX-AR800 2,22-5,56 N 5,56 90° 0,18 the selection shown below. listed 15 amp. SPDT. .5-1.25 lb. .219 .007 and (0.25°) CSA Roller Lever CCW actuation*. A EX-AR830 11,1 N 1,65 25° 0,18 certified 15 amp. SPDT. 2.5 lb. max. .065 .007 6PA5-EX for (0.25°) (Bronze roller) Class I Group B CW actuation*. C EXD-AR-3† 2,22-6,67 N 6,35 25° 2,77 6PA127-EX 10 amp. DPDT. .5-1.5 lb. .250 .109 (hydrogen) (Nylon roller) atmos- (4°) pheres. CCW actuation*. C EXD-AR30-3† 12,2 N 5,56 25° 2,77 10 amp. DPDT. 2.75 lb. .219 .109 Cross Roller Lever CW actuation*. 1 E EXH-AR3 2,22-6,67 N 5,56 25° 0,64 amp.** SPDT. .5-1.5 lb. .219 .025 6PA131-EX CCW actuation*. E EXH-AR33 11,1 N 1,65 25° 0,64 (Bronze roller) 1 amp.** SPDT. 2.5 lb. max. .065 .025 (3.5°) No lever furnished. (Order levers A EX-AR20 0,22 Nm 5,56 90° 0,18 shown at left of this page as 31.25 in./oz. .219 .007 separate items.) CW actuation*. (0.25°) SPDT. One-Way Roller Lever As above except CCW actuation. A EX-AR230 0,22 Nm 5,56 90° 0,18 For CW 31.25 in./oz. .219 .007 actuation: (0.25°) 6PA130-EX Nm J Newton meters Characteristics; O.F. — Operating Force; P.T. — (Bronze roller) * CW (clockwise) or CCW actuation, when looking Pretravel; O.T. — Overtravel; D.T. — Differential For CCW at nameplate. Travel actuation: ** Hermetically sealed switching unit, furnished with 6PA142-EX 10.5 ft./3,2 m leadwire. † Furnished with 0,91 m (3 ft.) leadwire (Bronze roller) For rapid response – off the shelf service, all bold face listings are normally stocked Adjustable Length items. Roller Lever 6PA138-EX (Nylon roller) Adjustable length 12.5N max. rod lever Rod Lever with 1N nylon roller. 6PA136-EX (Aluminum rod) 6PA204-EX A122 Honeywell1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada Limit/Enclosed Limit and Enclosed Switches EX Series Explosion-Proof Switches 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° — 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-3† 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 Characteristics: O.F. — Operating Force; P.T. — nameplate. Pretravel; O.T. — Overtravel; D.T. — Differential ** Tolerance ± 1,52 in./.060 mm. Travel † Furnished with 0,91 m (3 ft.) leadwire. N J Newtons Honeywell1 Sensing and Control 1 1-800-537-6945 USA1 F1-815-235-6847 International 1 1-800-737-3360 Canada A123 Limit and Enclosed Switches EX Series Explosion-Proof Switches Double-conduit EX switches on this page have conduit connect switch 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. 1 Two ⁄2 in. conduit openings. A 1EX1 2,22-5,56 5,56 90° 0,18 CW actuation.* 15 amp. 8-20 .219 .007 SPDT. 1 Two ⁄2 in. conduit openings. B 2EX1 3,61-8,90 5,56 25° 0,3 CW actuation.* 20 amp. 13-32 .219 .012 SPDT. 3 Two ⁄4 in. conduit openings. C 4EX1-3† 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 Characteristics: O.F. — Operating Force; P.T. — nameplate. Pretravel; O.T. — Overtravel; D.T. — Differential N J Newtons Travel. † Furnished with 0,91 m (3 ft.) leadwire. MOUNTING BRACKETS 15PA85-EX is used for top, bottom, back or 15PA86-EX is ordered separately for top end mounting. It is furnished with each mounting of plunger switches. EX switches switch, except where noted in the order may also be direct mounted, using 10-32 guides. UNF screws. A124 Honeywell1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada Limit/Enclosed Limit and Enclosed Switches EX Series Explosion-Proof Switches REPLACEMENT PARTS Catalog Listing Catalog Listing Replacement Part Numbers Replacement Part Numbers Switch Switching Switch Switching Listing Unit Actuator Springs Listing Unit Actuator Spring EX-AR BZ-2R-P4 6PA5-EX 33PA7-EX EX-AR128 BZ-2R-P4 6PA130-EX 33-PA7-EX EX-AR16 BZ-2RW88-P5 6PA5-EX — EX-AR1613 BZ-2RW88-P5 6PA136-EX — EX-AR20 BZ-2R-P4 * 33PA7-EX EX-Q800 BZ-2R-P4 8PA15-EX — EX-AR30 BZ-2R-P4 6PA5-EX 33PA5-EX EXA-Q BA-2R-P4 8PA15-EX — EX-AR50 BZ-2R-P4 6PA134-OP 33PA7-EX EXD-Q-3 DT-2R-A7 8PA77-EX — EX-AR800 BZ-2R-P4 6PA5-EX 33PA7-EX 1EX1 BZ-2R-P4 6PA5-EX 33PA7EX EX-CR BZ-2R-P4 6PA131-EX 33PA7-EX 2EX1 BA-2R-P4 6PA5-EX 33PA6-EX EX-Q BZ-2R-P4 8PA15-EX — 4EX1-3 DT-2R4-A7 6PA5-EX 33PA6-EX * Actuators for EX-AR20 are shown on page A122. EX-N15 BZ-2R15-P4 8PA12-EX — EXA-AR BA-2R-P4 6PA5-EX 33PA6-EX In addition to the items shown above, the following replaceable internal levers are available: 33PA1-EX for EX-AR, EX-AR800, EXD-AR-3 DT-2R4-A7 6PA5-EX 33PA6-EX EXA-AR, EXD-AR-3, EXH-AR3, EX-AR20, EX-CR, EX-AR128, 1EX1, EXH-AR3 4HS202 6PA5-EX 33PA6-EX 2EX1, and 4EX1-3. EXH-AR33 4HS203 6PA5-EX 33PA5-EX EXD-AR30-3 DT-2R711-A7 6PA5-EX 33PA5-EX MOUNTING DIMENSIONS (For reference only) ROLLER LEVER NO LEVER CROSS ROLLER LEVER ONE-WAY ROLLER LEVER Honeywell1 Sensing and Control 1 1-800-537-6945 USA1 F1-815-235-6847 International 1 1-800-737-3360 Canada A125 Limit and Enclosed Switches EX Series Explosion-Proof Switches MOUNTING DIMENSIONS (For reference only) LOW FORCE ROD MANUAL ACTUATOR PLUNGER PLUNGER WITH SEAL BOOT SWITCHES WITH DOUBLE CONDUIT OPENINGS ROLLER LEVER A126 Honeywell1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada