NEMA 7 Limit Switches | McMaster-Carr

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NEC Class I Divisions 1, 2 Groups B, C, D

NEC Class II Divisions 1, 2 Groups E, F, G

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Enclosure Rating

Switching Voltage

Switch Action

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0.27"

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2.5 amp

10 amp

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4.1"

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Female

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NPT

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1/2

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Exempt

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2 Products

Hazardous Location Limit Switches


Plunger Actuator	Wobble Stick Actuator

Safely open or close a circuit near ignitable gases and dust—the housing on these switches seals in anything that could ignite flammable material. You'll know they're safe because they're NEC Class I, Divisions 1, 2 Groups B, C, and D; and Class II, Divisions 1, 2 Groups E, F, and G certified for hazardous locations. These switches send a signal to your circuit when an object hits the actuator—for instance, a box on a conveyor runs into the switch, stopping the conveyor. They open and close circuits as fast as snap-acting switches, but they have a bigger actuator for large objects.

Plunger Actuator—Switches with a plunger actuator let you adjust the actuator’s height to easily align it with your target. They require a push to activate, similar to a button.

Wobble Stick Actuator—Switches with a wobble stick actuator have an arm that rotates 360°, so you don’t need to align it in a specific direction. The actuator won’t snap if pushed backward, such as if there’s a jam in your system.

											Housing
	No. of Circuits Controlled	Switch Starting Position	Switch Action	Switch Designation	Switching Current @ Voltage	Max. Voltage	Actuation Torque, in·ozf	Operating Temp. Range, ° F	Actuator Ht.	No. of Terminals	Lg.	Ht.	Dp.	Housing Material	Conduit Trade Size	Enclosure Rating		Each
Plunger Actuator







				Screw-Terminal Wire Connection

				1	1 Off or 1 On	Momentary	SPDT	10 amp @ 600V AC, 2.5 amp @ 600V DC	600V AC 600V DC	—	0 to 185	2.7" to 2.9"	4	2.7"	4.1"	2.1"	Aluminum	1/2	NEMA 6P, NEMA 7, NEMA 9, NEMA 13	7794K14	0000000


				Wobble Stick Actuator







								Screw-Terminal Wire Connection

								1	1 Off or 1 On	Momentary	SPDT	10 amp @ 600V AC, 2.5 amp @ 600V DC	600V AC 600V DC	48	0 to 185	6.2"	4	2.7"	4.1"	2.1"	Aluminum	1/2	NEMA 6P, NEMA 7, NEMA 9, NEMA 13	7794K15	000000