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Sensing and Control Honeywell Inc. 11 West Spring Street Freeport, IL 61032 www.honeywell.com/sensing Limit and Enclosed Switches Explosion-Proof Switches EX Series 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 Single-Conduit Connect Switch* NEMA EX switches feature the smallest UL-listed housings available for use in hazardous locations. 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 liquids 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. B UL/CSA Rating: 20 amps, 125, 250 or 480 VAC; 10 amps, 125 VAC ‘‘L’’; 1 Hp, 125 VAC; 2 Hp, 250 VAC; 1⁄2 amp, 125 VDC; 1⁄4 amp, 250 VDC. Single-Pole Double-Throw Single-Pole 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 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 nonsparking 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 hardened, radius tipped, push-rod plunger guided by a sturdy bushing. The manually operated switch has a large paddle-shaped actuator. REPLACEMENT PARTS D UL/CSA Rating: 10 amps, 125, 250 or 480 VAC; 1⁄2 amp, 125 VDC; 1⁄4 amp, 250 VDC. E UL Rating: 1 amp, 125 VAC. Single-Pole Double-Throw 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. Single-Pole Double-Throw Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada A121 Limit/Enclosed * See page A124 for double conduit connect switches. 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. Limit and Enclosed Switches Explosion-Proof Switches ROLLER LEVER ACTUATED SWITCHES EX Series ORDER GUIDE Elec. Rating Pg. A121 Description 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) Catalog Listing O.F. P.T. max. mm O.T. in. max. 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. — — — 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-3† 2,22-6,67 N .5-1.5 lb. 6,35 .250 25° 2,77 .109 (4°) CCW actuation*. 10 amp. DPDT. C EXD-AR30-3† 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°) Also UL listed and CSA certified for Class I Group B (hydrogen) atmospheres. 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. † Furnished with 0,91 m (3 ft.) leadwire Characteristics; O.F. — Operating Force; P.T. — Pretravel; O.T. — Overtravel; D.T. — Differential Travel For rapid response – off the shelf service, all bold face listings are normally stocked items. Adjustable Length Roller Lever 6PA138-EX (Nylon roller) Adjustable length 12.5 N max. rod lever with 1N nylon roller. Rod Lever 6PA136-EX (Aluminum rod) A122 D.T. max. mm in. 6PA204-EX Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada Limit and Enclosed Switches Explosion-Proof Switches EX Series CROSS ROLLER LEVER ACTUATED SWITCH ORDER GUIDE Description Elec. Rating Pg. A121 Catalog Listing A EX-CR CW actuation* 15 amp. SPDT O.F. N oz. 2,22-5,56 8-20 P.T. max. mm O.T. in. max. D.T. max. mm in. 5,56 .219 0,18 .007 90° ONE-WAY ROLLER LEVER ACTUATED SWITCH ORDER GUIDE Catalog Listing A EX-AR128 CW actuation* 15 amp. SPDT O.F. N oz. 2,22-5,56 8-20 P.T. max. mm O.T. in. max. D.T. max. mm in. 5,56 .219 90° 0,18 .007 P.T. max. O.T. min. D.T. 18° 40° — LOW FORCE ROD LEVER ACTUATED SWITCH ORDER GUIDE Description O.F. max. N oz. Elec. Rating Pg. A121 Catalog Listing A EX-AR1613 Furnished without mounting bracket. CW actuation* 15 amp. SPDT 0,56 2 MANUALLY ACTUATED SWITCH ORDER GUIDE Description Elec. Rating Pg. A121 Catalog Listing A EX-AR50 Large 3 x 3.5 inch paddle for fast, easy operation. 15 amp. SPDT O.F. max. N lb. 11,1 2.5 OVERTRAVEL PLUNGER ACTUATED SWITCHES ORDER GUIDE Description Elec. Rating Pg. A121 Catalog Listing O.F. max. N lb. P.T. max. mm in. O.T. min. mm in. D.T. max. mm in. O.P.** mm in. 15 amp. SPDT A EX-Q 13,34 3 1,98 .078 4,78 .188 0,10 .004 47,22 1.859 20 amp. SPDT B EXA-Q 8,90 2 1,27 .050 3,18 .125 0,23 .009 46,02 1.812 15 amp SPDT A EX-Q800 13,34 3 1,98 .078 4,78 .188 0,10 .004 47,22 1.859 10 amps DPDT C EXD-Q-3† 13,34 3 3,96 .156 3,58 .141 1,52 .060 46,02 1.812 With seal boot on plunger. 10 amp. SPDT D EX-N15 13,34 3 1,98 .078 4,78 .188 0,10 .004 52,32 2.060 Also UL listed for Class I, Group B (hydrogen) atmospheres. * CW (Clockwise) or CCW actuation, when looking at nameplate. ** Tolerance ± 1,52 in./.060 mm. † Furnished with 0,91 m (3 ft.) leadwire. Characteristics: O.F. — Operating Force; P.T. — Pretravel; O.T. — Overtravel; D.T. — Differential Travel N J Newtons Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada A123 Limit/Enclosed Description Elec. Rating Pg. A121 Limit and Enclosed Switches Explosion-Proof Switches EX Series 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 additional 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 Description Elec. Rating Pg. A121 Catalog Listing O.F. N oz. P.T. max. mm in. O.T. max. D.T. max. mm in. Two 1⁄2 in. conduit openings. CW actuation.* 15 amp. SPDT. A 1EX1 2,22-5,56 8-20 5,56 .219 90° 0,18 .007 Two 1⁄2 in. conduit openings. CW actuation.* 20 amp. SPDT. B 2EX1 3,61-8,90 13-32 5,56 .219 25° 0,3 .012 Two 3⁄4 in. conduit openings. CW actuation.* 10 amp. DPDT. C 4EX1-3† 2,22-6,67 8-24 6,35 .250 25° 2,77 .109 * CW (clockwise) or CCW actuation, when looking at nameplate. N J Newtons † Furnished with 0,91 m (3 ft.) leadwire. Characteristics: O.F. — Operating Force; P.T. — Pretravel; O.T. — Overtravel; D.T. — 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. A124 15PA86-EX is ordered separately for top mounting of plunger switches. EX switches may also be direct mounted, using 10-32 UNF screws. Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada Limit and Enclosed Switches Explosion-Proof Switches EX Series REPLACEMENT PARTS Switch Listing Catalog Listing Replacement Part Numbers Switching Unit Actuator Springs Switch Listing Catalog Listing Replacement Part Numbers Switching Unit Actuator Spring 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 EX-N15 BZ-2R15-P4 8PA12-EX — 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 * * 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 Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada A125 Limit/Enclosed EX-AR Limit and Enclosed Switches Explosion-Proof Switches EX Series MOUNTING DIMENSIONS (For reference only) LOW FORCE ROD MANUAL ACTUATOR PLUNGER PLUNGER WITH SEAL BOOT SWITCHES WITH DOUBLE CONDUIT OPENINGS ROLLER LEVER A126 Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada