1.5A Switches | McMaster-Carr

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System of Measurement

Switching Voltage

Actuator Style

Switch Starting Position

Input Voltage

Number of Terminals

Switch Designation

Number of Turns

Diameter

Environment

Housing Material

Panel Cutout Diameter

Enclosure Rating

Wire Connection

Shaft Diameter

Number of Positions

Wattage @ Voltage

Push-Button Style

Depth Behind Panel

Certification

UL Recognized Component

Switch Action

Maintained

Momentary

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EAR99

DFARS Specialty Metals

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24 Products

Choosing an Electrical Switch


	4-Pole Micro M12 Plug
	8-Pole Micro M12 Plug

Snap these switches onto your T-slotted framing rails—no need to drill or disassemble your existing structure. All come with a mounting bracket that fastens directly onto the rail with the included drop-in fasteners. Their built-in clip hooks onto the bracket, so there’s no need to open the housing to mount them. You can adjust their position by sliding them down the rails. With a push button, they’re quick and easy to actuate.

Switches with One Button

4-Pole
Micro
M12 Plug

For Rail Height
Single	Double, Quad	Triple	Actuator Color (Industry Designation)	No. of Circuits Controlled per Button	Switch Starting Position	Switch Action	No. of Terminals per Button	Switching Current @ Voltage	Max. Voltage	Bulb Voltage	Mounting Fasteners Included		Each
4-Pole Micro M12 Plug
Not Illuminated
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 White Button (SPST-NO)	1	1 Off (Normally Open)	Stays Switched (Maintained)	2	1.5 A @ 240 V AC, 2 A @ 24 V DC	24V DC 240V AC	__	Yes	0000000	0000000
Illuminated
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 White Button (SPST-NO)	1	1 Off (Normally Open)	Stays Switched (Maintained)	2	1.5 A @ 240 V AC, 2 A @ 24 V DC	24V DC 240V AC	24V DC 240V AC	Yes	0000000	000000

Switches with Two Buttons

4-Pole
Micro
M12 Plug

8-Pole
Micro
M12 Plug

For Rail Height
Single	Double, Quad	Triple	Actuator Color (Industry Designation)	No. of Circuits Controlled per Button	Switch Starting Position	Switch Action	No. of Terminals per Button	Switching Current @ Voltage	Max. Voltage	Bulb Voltage	Mounting Fasteners Included		Each
4-Pole Micro M12 Plug
Not Illuminated
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	2 White Buttons (SPST-NO)	1	1 Off (Normally Open)	Stays Switched (Maintained)	2	1.5 A @ 240 V AC, 2 A @ 24 V DC	24V DC 240V AC	__	Yes	0000000	0000000
8-Pole Micro M12 Plug
Illuminated
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 Green Button (SPST-NO), 1 Red Button (SPST-NO)	1	1 Off (Normally Open)	Stays Switched (Maintained)	2	1.5 A @ 240 V AC, 2 A @ 24 V DC	24V DC 240V AC	24V DC 240V AC	Yes	0000000	000000

Emergency Stop Enclosed Push-Button Switches for T-Slotted Framing

4-Pole
Micro
M12 Plug

5-Pole
Micro
M12 Plug

8-Pole
Micro
M12 Plug

Clip these switches onto nearby structures made from T-slotted framing to quickly cut power with the push of a button. These switches meet EN 60947-5-1 and EN 60947-5-5, so they comply with European safety standards for reliably stopping machines.

You don’t need to take apart your existing structure or open the switch’s plastic housing to mount them. Fasten the included bracket to a rail with the included drop-in fasteners, then clip the switch onto the bracket.

Switches with two buttons have one button for an emergency stop and another button that can be wired to any equipment nearby.

Switches with One Button

4-Pole
Micro
M12 Plug

5-Pole
Micro
M12 Plug

8-Pole
Micro
M12 Plug

For Rail Height
Single	Double, Quad	Triple	Actuator Color (Industry Designation)	No. of Circuits Controlled per Button	Switch Starting Position	Switch Action	No. of Terminals per Button	Switching Current @ Voltage	Max. Voltage	Mounting Fasteners Included		Each
4-Pole Micro M12 Plug
Turn Reset
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 Red Button (DPST-NC)	2	2 On (Normally Closed)	Stays Switched (Maintained)	4	1.5 A @ 240 V AC, 2 A @ 24 V DC	60V DC 240V AC	Yes	0000000	0000000
5-Pole Micro M12 Plug
Turn Reset
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 Red Button (DPST-NC)	2	2 On (Normally Closed)	Stays Switched (Maintained)	4	1.5 A @ 240 V AC, 2 A @ 24 V DC	60V DC 240V AC	Yes	0000000	000000
8-Pole Micro M12 Plug
Turn Reset
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 Red Button (DPST-NC)	2	2 On (Normally Closed)	Stays Switched (Maintained)	4	1.5 A @ 24 V DC	24V DC	Yes	0000000	000000

Switches with Two Buttons

8-Pole
Micro
M12 Plug

For Rail Height
Single	Double, Quad	Triple	Actuator Color (Industry Designation)	Switch Action	Switching Current @ Voltage	Max. Voltage	Mounting Fasteners Included		Each
8-Pole Micro M12 Plug
Push Reset and Turn Reset
1 1/2", 40mm	3", 80mm	4 1/2", 120mm	1 White Button (SPST-NO) 1 Red Button (DPST-NC)	Stays Switched (Maintained)	1.5 A @ 24 V DC	24V DC	Yes	0000000	0000000

Hazardous Location 30 mm Panel-Mount Lever Switches

Made for areas where ignitable gas and vapor may be present, these switches have a housing that seals in anything that could spark flammable material. You'll know they're safe because they're NEC Class 1, Division 2, Groups A, B, C, and D certified for hazardous locations. They're also UL and C-UL listed and CSA certified. They require you to grip and twist a lever to turn them on or off, so they won’t accidentally actuate if you bump into them. Mount into a standard panel cutout.

Additional contact blocks (sold separately) can be added to control more circuits, or to replace the included contact block.

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

2 Position
Lever Lg.	No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	For Max. No. of Contact Blocks		Each
With Screw Terminals
1 1/16"	1	1 Off (Normally Open)	Springs Back (Momentary)	2	SPST-NO	1.5 A @120 V AC, 0.55 A @ 125 V DC	600V AC 300V DC	1 3/8"	3 1/16"	2	0000000	0000000
1 1/16"	1	1 Off (Normally Open)	Stays Switched (Maintained)	2	SPST-NO	1.5 A @120 V AC, 0.55 A @ 125 V DC	600V AC 300V DC	1 3/8"	3 1/16"	2	0000000	000000
1 1/16"	1	1 On (Normally Closed)	Springs Back (Momentary)	2	SPST-NC	1.5 A @120 V AC, 0.55 A @ 125 V DC	600V AC 300V DC	1 3/8"	3 1/16"	2	0000000	000000
1 1/16"	1	1 On (Normally Closed)	Stays Switched (Maintained)	2	SPST-NC	1.5 A @120 V AC, 0.55 A @ 125 V DC	600V AC 300V DC	1 3/8"	3 1/16"	2	0000000	000000
3 Position
With Screw Terminals
1 1/16"	2	2 Off (Normally Open)	Stays Switched (Maintained)	4	DPST-NO	1.5 A @120 V AC, 0.55 A @ 125 V DC	600V AC 300V DC	1 3/8"	3 1/16"	2	0000000	000000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation		Each
1	1 Off (Normally Open)	2	SPST-NO	0000000	000000
1	1 On (Normally Closed)	2	SPST-NC	0000000	00000
2	2 Off (Normally Open)	4	DPST-NO	0000000	000000
2	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	0000000	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. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects—for instance, a box on a conveyor runs into the switch, stopping the conveyor.

Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear on your switch.

Switches with a rod actuator use a rod extending out of the body to actuate, so they’ll activate even if an object is far away.

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

Switches with a steel actuator are more durable than switches with a plastic actuator. They also handle higher loads.

Switches with a plastic actuator limit wear and tear on passing objects better than switches with a steel actuator.

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	Actuator Material	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	Lg.	Ht.	Dp.	Housing Material	Environmental Rating		Each
Roller Lever Actuator Style
C	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	Plastic	3 A @ 240 V AC, 1.5 A @ 24 V DC	240V AC 24V DC	-22° to 165°	1.5"	Screw Terminals	1.7"	2.9"	1.6"	Plastic	NEMA 4X, IP66, IP67	00000000	0000000
Rod Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	Steel	3 A @ 240 V AC, 1.5 A @ 24 V DC	240V AC 24V DC	-22° to 165°	0.5"-8"	Screw Terminals	1.7"	2.9"	1.6"	Plastic	NEMA 4X, IP66, IP67	00000000	000000

Potentiometers

Vary electrical flow to control speed, volume, and light intensity. The number of turns affects the resolution—the higher the number, the better the control. Also known as variable output switches. A knob is required (not included).

Switches with On/Off Controls

			Switching					Shaft
	No. of Turns	Wattage	Current	Voltage	For Panel Cutout Dia.	Dp. Behind Panel	Dia.	Dia.	Lg.	Housing Material	Wire Connection Type	No. of Terminals	Environmental Rating	Choose a Max. Resistance, kilohms		Each
G	1	0.125 W @ 350 V AC	1.5A	12V DC	3/16"	1/4"	7/16"	1/8"	5/16"	Metal	Tab Terminals	5	IP40	5, 10, 20, 25	000000	000000

Safety Relays with Diagnostic Capabilities

Control and diagnose issues with safety-critical circuits. These relays have a microprocessor that monitors safety components, such as emergency stops and light curtains, and sends a signal to stop the operation if a failure is detected and restart when the issue is resolved. They also help with diagnostic tasks because of their feedback circuit, which allows basic relays to communicate their status back to the safety relay. These relays have a duplicate set of input and output signals, so they’ll still stop the controlled device if one of the inputs fails.

IP20 rated, they have recessed terminals which prevent fingers and other objects from touching live circuits. These relays have been tested to multiple safety standards and can help achieve PL, SIL, or CAT system ratings. They also meet ISO and IEC standards for machine safety.

Mount them to 35 mm DIN rail (also known as DIN 3 Rail) for fast installation.

Auxiliary contact blocks (sold separately) allow you to control more components, such as signaling devices or basic relays.

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

Safety Relays

Relay

2 Circuits Controlled
Number of Terminals	Input Voltage	Switching Current @ Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	For Use With	Max. System Safety Rating	Features		Each
2 Off (Normally Open)
14	24V DC	2 A @ 240 V AC 1.5 A @ 24 V DC	250V AC	4.9"	0.69"	4.3"	Emergency Stops, Light Curtains	PLe, SIL3, CAT 4, 250V	Auxiliary PNP Output, LED Indicator	0000000	0000000
4 Circuits Controlled
4 Off (Normally Open)
18	24V DC	2 A @ 240 V AC 1.5 A @ 24 V DC	250V AC	4.9"	0.89"	4.3"	Emergency Stops, Light Curtains	PLe, SIL3, CAT 4, 250V	Auxiliary PNP Output, LED Indicator	0000000	000000

Auxiliary Contact Blocks

Auxiliary Contact Block

Auxiliary Contact Block with Time Delay

5 Safety Outputs
Number of Terminals	Input Voltage	Switching Current @ Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	Features		Each
16	24V AC, 24V DC	2.5 A @ 24 V DC 3 A @ 240 V AC	250V AC, 250V DC	3.9"	0.9"	4.5"	__	0000000	0000000
4 Delayed Safety Outputs
16	24V DC	3 A @ 240 V AC 3 A @ 24 V DC	250V AC, 250V DC	3.9"	0.9"	4.5"	Time Delay	0000000	000000