300V AC Switches | McMaster-Carr

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	Actuator Style Actuator Style


Plunger	Roller Lever

Key	Roller Plunger

Wobble Stick	Rod

	Wire Connection Type Wire Connection Type

	Screw Terminals

	Environment Environment

	Switching Voltage Switching Voltage	Show

300V AC

	Switching Voltage Switching Voltage	Hide

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	Switching Current Switching Current

7.5A

10A

	Number of Terminals Number of Terminals

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

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

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

1 On (Normally Closed)

	System of Measurement System of Measurement

Inch

	Actuator Height Actuator Height

	Maximum Voltage Maximum Voltage

300V AC

24V DC

250V DC

	Number of Circuits Controlled Number of Circuits Controlled

	Environmental Rating Environmental Rating

	Industry Designation Industry Designation

	Specifications Met Specifications Met

CCC Marked

CE Marked

CSA

	Switch Type Switch Type

Limit

Manual

	Housing Height Housing Height

2.4"

2.7"

	Number of Mounting Holes Number of Mounting Holes

	Housing Material Housing Material

Aluminum

Zinc

	Operating Temperature Range Operating Temperature Range

-40° F

14° F

	Housing Depth Housing Depth

1.2"

1.6"

	Number of Positions Number of Positions

	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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20 Products

Choosing an Electrical Switch

About Relays

With Screw Terminals

Replacement Key

Rated NEMA 4, these switches are protected from washdowns. They require a key to turn circuits on or off, limiting access to sensitive equipment.

Keyed alike switches all open with the same key.

Keyed differently switches each open with a unique key.

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

Key Switches
										Key				Replacement Keys
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	No. of Keys Included	Removal Position	Environmental Rating		Each		Each
2 Position with Metal Base
Keyed Alike with Screw Terminals
2	1 Off (Normally Open) and 1 On (Normally Closed)	Stays Switched (Maintained)	4	DPST-1NO/1NC	10 A @ 300 V AC/24 V DC	24V DC 300V AC	7/8"	1 7/8"	2	Center, Right	NEMA 4, IP66	0000000	000000	000000	00000
Keyed Differently with Screw Terminals
2	1 Off (Normally Open) and 1 On (Normally Closed)	Stays Switched (Maintained)	4	DPST-1NO/1NC	10 A @ 300 V AC/24 V DC	24V DC 300V AC	7/8"	1 7/8"	2	Center, Right	NEMA 4, IP66	0000000	00000	000000	0000

Wet-Location Limit Switches

Rated IP67, these switches are protected 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.

Styles D and E have an actuator that allows you to adjust its height, making it easier to align the 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	Lg.	Ht.	Dp.	Housing Material	Conduit Trade Size		Each
Plunger Actuator Style
A	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	1.1"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	000000
Roller Plunger Actuator Style
B	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	1.6"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	00000
Roller Lever Actuator Style
C	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	2.2"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	00000
D	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	1.7"-4.2"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	00000
Rod Actuator Style
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	1.4"-5.9"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	00000
Wobble Stick Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 6 A @ 24 V DC	300V AC/250V DC	14° to 176°	5.3"	Screw Terminals	4	1.6"	2.7"	1.6"	Aluminum	1/2	0000000	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
Plunger Actuator Style
A	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	0.7"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	000000
Roller Plunger Actuator Style
B	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	1.1"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	000000
Roller Lever Actuator Style
D	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	2.1"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	00000
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	0.9"-3"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	00000

Long-Life Medium-Current Relays

1-Circuit Relay

With no moving parts, these solid state relays have an extended service life.

Heat sinks can be used to disperse heat to increase the relay’s current rating. Mount to 35 mm DIN rail or flat surfaces. Before mounting one-circuit relays, silicone compound should be applied between the heat sink and relay.

Relays
		Switching Current									Heat Sinks
Number of Terminals	Input Voltage	Without Heat Sink	With Heat Sink	Switching Voltage	Ht.	Wd.	Dp.	Specifications Met		Each		Each
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
With High-Starting-Current Protection
4	70-140V AC	7.5A	25A	300V AC	2.3"	1.8"	1.1"	C-UL Recognized Component UL Recognized Component	0000000	0000000	0000000	0000000
4	3-30V AC/3-30V DC	7.5A	25A	300V AC	2.3"	1.8"	1.1"	C-UL Recognized Component UL Recognized Component	0000000	000000	0000000	000000
1 Circuit Controlled with 1 On (Normally Closed)—SPST-NC
With High-Starting-Current Protection
4	70-140V AC	7.5A	25A	300V AC	2.3"	1.8"	1.1"	C-UL Recognized Component UL Recognized Component	0000000	000000	0000000	000000
4	3-30V AC/3-30V DC	7.5A	25A	300V AC	2.3"	1.8"	1.1"	C-UL Recognized Component UL Recognized Component	0000000	000000	0000000	000000

Silicone Compound for One-Circuit Relays (8 oz.)

00000000

Each

000000

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Choosing an Electrical Switch

About Relays

Washdown 3/4" Panel-Mount Key Switches

Wet-Location Limit Switches

Compact Safety Limit Switches

Long-Life Medium-Current Relays