2.5A Switches | McMaster-Carr

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	Switching Voltage Switching Voltage

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	System of Measurement System of Measurement

Inch

	For Panel Cutout Diameter For Panel Cutout Diameter

	Actuator Style Actuator Style


Push Button	Lever

Plunger	Roller Lever

Foot Pedal	Key

Rotary

	Actuator Color Actuator Color

	Black		Red
	Green		Gray
	White		Yellow
	Blue		Orange
	Amber

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

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

1 Off (Normally Open) and 2
On (Normally Closed)

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

1 On (Normally Closed)

2 Off (Normally Open)

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

2 On (Normally Closed)

3 Off (Normally Open)

	Illumination Illumination

Not Illuminated

Illuminated

	Number of Positions Number of Positions

	Environment Environment

High-Pressure Washdown

	Push-Button Style Push-Button Style


Flush	Mushroom

Projecting

	Number of Circuits Controlled Number of Circuits Controlled

	Number of Terminals Number of Terminals

	Actuator Base Material Actuator Base Material

Metal

Plastic

	Wire Connection Type Wire Connection Type


Quick- Disconnect Terminals	Screw Terminals

Screw-Clamp Terminals	Solder

Spade Terminals	Wire Leads

	Environmental Rating Environmental Rating

	Switching Current Switching Current	Show

2.5A

	Switching Current Switching Current	Hide

	Industry Designation Industry Designation

	Mounting Location Mounting Location

Panel

Surface

	Maximum Voltage Maximum Voltage

	Bulb Voltage Bulb Voltage

	Push-Button Shape Push-Button Shape

	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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Choosing an Electrical Switch

Metal 22 mm Panel-Mount Push-Button Switches

Plastic 22 mm Panel-Mount Push-Button Switches

Metal 22 mm Emergency Stop
Panel-Mount Push-Button Switches

Plastic 22 mm Emergency Stop
Panel-Mount Push-Button Switches

Metal Premium 30 mm
Panel-Mount Push-Button Switches

More durable than standard metal switches, these can handle tough, repetitive use.

Plastic 30 mm Panel-Mount Push-Button Switches

Plastic Premium 30 mm
Panel-Mount Push-Button Switches

Able to handle tough, repetitive use, these switches are more durable than standard plastic switches.

30 mm Emergency Stop
Panel-Mount Push-Button Switches

Immediately cut power with a single push.

16 mm Emergency Stop
Panel-Mount Push-Button Switches

Immediately cut power with a single push.

Plastic Enclosed Push-Button Switches

Rated NEMA 4X and 13, all switches resist corrosion and can withstand washdowns and oil/coolant spraying.

Plastic Emergency Stop Enclosed Push-Button Switches

Rated NEMA 3S, NEMA 4X, NEMA 13, and IP66, these plastic switches resist corrosion better than aluminum switches and withstand washdowns and oil/coolant spraying.

Aluminum Emergency Stop
Enclosed Push-Button Switches

These aluminum switches are rated NEMA 4, NEMA 13, and IP66 for protection from washdowns and oil/coolant spraying.

Plastic 22 mm Panel-Mount Lever Switches

These switches are protected from corrosion, high-temperature and high-pressure washdowns, and oil/coolant spraying. Install them in 22 mm dia. cutouts.

Metal 22 mm Panel-Mount Lever Switches

Switches are rated NEMA 4, 13, and IP66.

Metal 30 mm Panel-Mount Lever Switches

Rated NEMA 4, 13, and IP66, these metal switches are protected from washdowns and oil/coolant spraying. Install them in 30 mm dia. cutouts.

Plastic 30 mm Panel-Mount Lever Switches

These plastic switches are rated NEMA 4X, 13, and IP65 for protection from corrosion, washdowns, and oil/coolant spraying. Install them in 30 mm dia. cutouts.

16 mm Panel-Mount Lever Switches

Install in 16 mm dia. cutouts.

Plastic Enclosed Lever Switches

Rated NEMA 3S, 4X and 13, these switches are protected from corrosion, washdowns, and oil/coolant spraying.

22 mm Panel-Mount Build-Your-Own Plastic Switches

Choose an actuator and contact block to make your own 22 mm plastic switch.

22 mm Panel-Mount Build-Your-Own Metal Switches

Choose an actuator and contact block to make your own 22 mm metal switch.

16 mm Panel-Mount Build-Your-Own Plastic Switches

Choose an actuator and contact block to make your own 16 mm switch.

Foot Switches

Press these switches with your foot for convenient, hands-free operation.

22 mm Panel-Mount Key Switches

Sized for 22 mm dia. panel cutouts, these switches require a key to turn circuits on or off, limiting access to sensitive equipment.

30 mm Panel-Mount Key Switches

Install these key switches in 30 mm dia. panel cutouts. They require a key to turn circuits on or off, limiting access to sensitive equipment.

16 mm Panel-Mount Key Switches

These 16 mm switches require a key to turn circuits on or off, limiting access to sensitive equipment.

Rotary Switches

Control multiple devices with one switch. Turn the shaft to change switch positions.

Joystick Switches

Grab these switches by hand and pivot them to use.

Limit Switches

Manual-Reset Safety Limit Switches

Prevent equipment from automatically restarting—these switches must be manually reset each time they're actuated.

Frame-Mounted Safety Switches

Often used with machine guards, these switches mount to a door frame.

Access-Delay Frame-Mounted Safety Switches

Delay access to hazardous areas until conditions are safe; use these switches with machines that take time to stop after they are turned off. They mount to a door frame.

Noncontact Switches

Magnetically Actuated Switches

These switches actuate when a magnet comes within sensing distance, and reset when the magnet moves away.

Tilt Switches

Often used as position indicators, pump level controls, and machine limit switches, these switches actuate when tilted to a certain angle.

Long-Life Medium-Current Relays

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