Whisker Switches | McMaster-Carr

	Actuator Style Actuator Style


Wobble Stick	Rod

	Switching Voltage Switching Voltage

	Environment Environment

High-
Pressure
Washdown

Hazardous

	Actuator Height Actuator Height

	Maximum Voltage Maximum Voltage

	Switch Starting Position Switch Starting Position

1 Off (Normally Open) or 1 On
(Normally Closed)

2 Off (Normally Open) or 2 On
(Normally Closed)

	Actuation Force Actuation Force

	Wire Connection Type Wire Connection Type


Screw Terminals	Wire Leads

	Switching Current Switching Current

0.2A

10A

	Number of Mounting Holes Number of Mounting Holes

	Industry Designation Industry Designation

SPDT

DPDT

	Specifications Met Specifications Met

CE Marked

CCC Marked

CSA

	Environmental Rating Environmental Rating

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

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

	Number of Circuits Controlled Number of Circuits Controlled

	Number of Terminals Number of Terminals

	Operating Temperature Range Operating Temperature Range

	Housing Depth Housing Depth

	Housing Material Housing Material

Zinc

Aluminum

Plastic

	Mounting Hole Diameter Mounting Hole Diameter

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Housing Length Housing Length

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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13 Products

Choosing an Electrical Switch

Rated NEMA 6P, 13, and IP67, these switches are protected from corrosion, oil/coolant spraying, washdowns, and temporary submersion. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations.

Styles D and E have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

Switches with wire leads are rated NEMA 3S and IP69K and protected from rain, snow and sleet, and from high temperature, high pressure jets of water.

For technical drawings and 3-D models, click on a part number.

													Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	No. of Terminals	No. of Wire Leads	Cable Lead Lg., ft.	Lg.	Ht.	Dp.	Housing Material	Conduit Trade Size		Each
Rod Actuator Style
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 240 V AC, 10 A @ 24 V DC	600V AC 250V DC	10° to 250°	0.5"-4.3"	Screw Terminals	4	__	__	1.9"	4.5"	1.8"	Zinc	1/2	00000000	0000000
E	2	2 Off (Normally Open) or 2 On (Normally Closed)	Springs Back (Momentary)	DPDT	5 A @ 240 V AC, 10 A @ 24 V DC	600V AC 250V DC	10° to 250°	0.5"-11.8"	Screw Terminals	8	__	__	1.9"	4.5"	1.8"	Zinc	1/2	00000000	000000
Wobble Stick Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 240 V AC, 1 A @ 125 V DC	600V AC 250V DC	14° to 221°	13.6"	Wire Leads	__	5	8	1.5"	3.1"	1.6"	Zinc	__	0000000	000000
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 240 V AC, 10 A @ 24 V DC	600V AC 250V DC	10° to 200°	4.5"	Screw Terminals	4	__	__	1.9"	4.5"	1.8"	Zinc	1/2	00000000	000000
F	2	2 Off (Normally Open) or 2 On (Normally Closed)	Springs Back (Momentary)	DPDT	5 A @ 240 V AC, 10 A @ 24 V DC	600V AC 250V DC	10° to 200°	4.5"	Screw Terminals	8	__	__	1.9"	4.5"	1.8"	Zinc	1/2	00000000	000000

Low-Profile Wet-Location Limit Switches

Stack these slim switches together, or fit them into tight spaces. They're rated IP67 for protection from temporary submersion. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and elevators.

Switches with a 4-pole micro M12 plug connect to cables with a socket (sold separately), allowing you to quickly connect and disconnect the switch.

For technical drawings and 3-D models, click on a part number.

											Housing
	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	No. of Wire Leads	Cable Lead Lg., ft.	Lg.	Ht.	Dp.	Housing Material		Each
Wobble Stick Actuator Style
With Wire Leads
G	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	5 A @ 250 V AC, 4 A @ 30 V DC	250V DC 250V AC	14° to 158°	3.6"	4	9.5	1.6"	1.9"	0.6"	Aluminum	0000000	0000000
With 4-Pole Micro M12
G	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	1 A @ 125 V AC	125V AC	14° to 158°	3.6"	__	__	1.6"	2.2"	0.6"	Aluminum	0000000	000000

Cable with Socket for Switches with 4-pole Micro M12 Plugs

0000000

Each

000000

Limit Switches

Often used on conveyor systems and bin filling operations, these switches have the rapid-closing action of a snap-acting switch, but have a larger actuator for large objects. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. All are rated IP67 and NEMA 13 for protection from corrosion, oil/coolant spraying, and temporary submersion.

Styles D and E have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

For technical drawings and 3-D models, click on a part number.

												Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	No. of Terminals	For Max. Cable OD	Lg.	Ht.	Dp.	Housing Material		Each
Rod Actuator Style
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 380 V AC, 220 V DC	380V AC 220V DC	-4° to 158°	1.5"-5"	Screw Terminals	4	0.25"	1.1"	2.5"	1"	Zinc	000000	000000
Wobble Stick Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 380 V AC, 220 V DC	380V AC 220V DC	-4° to 158°	3.8"	Screw Terminals	4	0.25"	1.1"	2.5"	1"	Zinc	000000	00000

Compact Safety Limit Switches

Shorter and thinner than other safety limit switches, these are sized to fit tight spaces. They protect machinery and ensure the safety of personnel. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations. All are NEMA and IP rated for protection from washdowns.

Styles E and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

NEMA 13 and IP67 rated switches are protected from oil/coolant spraying and temporary submersion.

For technical drawings and 3-D models, click on a part number.

										Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	Lg.	Ht.	Dp.	Housing Material	Environmental Rating		Each
Rod Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-40° to 185°	0.6"-5.8"	Screw Terminals	1.2"	2.4"	1.2"	Plastic	NEMA 4, NEMA 13, IP66, IP67	00000000	000000

Safety Limit Switches

Protect machinery and ensure the safety of personnel—these switches have positive-force contacts that will open the circuit when actuated even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations. All are NEMA and IP rated for protection from washdowns.

Styles E and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

For technical drawings and 3-D models, click on a part number.

										Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	Lg.	Ht.	Dp.	Housing Material	Environmental Rating		Each
Rod Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 240 V AC, 4 A @ 24 V DC	240V AC 24V DC	-22° to 176°	0.5"-8"	Screw Terminals	1.7"	3.2"	1.7"	Plastic	NEMA 4, IP65	00000000	0000000

Hazardous Location Limit Switches

Wobble Stick

Use these switches where ignitable gas and dust may be present. They meet NEC Class I, Divisions 1 and 2, Groups B, C, and D; and Class II, Divisions 1 and 2, Groups E, F, and G for hazardous locations. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and elevators.

For technical drawings and 3-D models, click on a part number.

										Housing
No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	No. of Terminals	Lg.	Ht.	Dp.	Housing Material	Conduit Trade Size		Each
Wobble Stick Actuator Style
1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 0.2 A @ 125 V DC	250V DC 600V AC	-20° to 200°	5.6"	Screw Terminals	5	2.3"	4"	2.3"	Aluminum	1/2	0000000	0000000

Choosing an Electrical Switch

Corrosion-Resistant Washdown Limit Switches

Low-Profile Wet-Location Limit Switches

Limit Switches

Compact Safety Limit Switches

Safety Limit Switches

Hazardous Location Limit Switches