Honeywell Switches and Sensors manual EX Series Standard Explosion Proof Switches

EXPLOSION PROOF SWITCHES

EX Series

Standard

Explosion

Proof

Switches

Actuators

The EX Series features 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.

Options available include single or double conduit connection.

These switches are not sealed against liquids and should not be used where there will be liquid splash. If a weather sealed explosion proof switch is required please select from the CX or LSX/BX series.

Sealing:			NEMA 1, 7 (Class I, Division I, Groups C, D)
				9, (Class II, Division I, Groups E, F, G)
Operating temperature:			Standard	-40 °C to 71 °C (-40 °F to 160 °F)
			High				100 hr @ 400 °F
Approvals:								UL, CSA
Conduit:							½ in - 14NPT
Contacts:								Silver
Electrical ratings:
A		UL/CSA Rating:		15 A, 125, 250 or 480 Vac;
				1/8 Hp, 125 Vac; ¼ Hp, 250 Vac;
				½ A, 125 Vdc; ¼ A, 250 Vdc.
B		UL/CSA Rating:		20 A, 125, 250 or 480 Vac;
						10 A, 125 Vac “L”;
				1 Hp, 125 Vac; 2 Hp, 250 Vac;
				½ A, 125 Vdc; ¼ A, 250 Vdc.
C		UL/CSA Rating:			10 A, 125 or 250 Vac;
				0.3 A, 125 Vdc; 0.15 A, 250 Vdc
				.
D		UL/CSA Rating:		10 A, 125, 250 or 480 Vac;
				½ A, 125 Vdc; ¼ A, 250 Vdc.
E			UL Rating:				1 A, 125 Vac.
Switching options:
	SPDT				DPDT
Single Pole, Double Throw				Double Pole, Double Throw
Snap action contacts (1NC/1NO)				Snap action contacts (2NC/2NO)

Side rotary actuated switches

OPTIONS

No lever

Note: Levers are ordered separately (see pages 69-71 for details)

Operating force max. (OF):
Electrical rating A		0,22 N m (31.25 in oz)
Electrical rating B		3,34 N to 8,90 N (0.75 lb to 2.0 lb)
Pretravel max. (PT):		5,56 mm (0.219 in) 8°
Overtravel max. (OT):
Electrical rating A			90°
Electrical rating B			25°
Differential travel max. (DT):
Electrical rating A		0,18 mm (0.007 in) 0.25°
Electrical rating B		0,3 mm (0.012 in) 4°
ACTUATION	CONTACT	ELECTRICAL RATING	REFERENCE
CW	SPDT	A	EX-AR20
CCW	SPDT	A	EX-AR230
CW	SPDT	B	EXA-AR20

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