Mushroom Switches | McMaster-Carr

Choose a Category

	Push-Button Style Push-Button Style


Mushroom	Flush

	Switch Action Switch Action

Springs Back (Momentary)

Stays Switched (Maintained)

	Actuator Color Actuator Color

	Red		Green
	Black		Yellow
	Blue		White

	Switch Starting Position Switch Starting Position

1 On (Normally Closed)

1 Off (Normally Open)

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

2 On (Normally Closed)

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

2 Off (Normally Open)

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

	Switching Voltage Switching Voltage

	Illumination Illumination

Not Illuminated

Illuminated

	For Panel Cutout Diameter For Panel Cutout Diameter

	Push-Button Shape Push-Button Shape

Round

Triangular

	Reset Type Reset Type

	Environment Environment

Damp

Dusty

Washdown

Corrosive

Outdoor

Oily

High-
Pressure
Washdown

Submersible

Hazardous

	Mounting Location Mounting Location

Panel

Surface

Outlet Box

	Industry Designation Industry Designation

	Environmental Rating Environmental Rating

NEC Class I Division 2
Groups B, C, D

NEC Zone 2 Groups
IIB, IIA

	Number of Terminals Number of Terminals

	Number of Circuits Controlled Number of Circuits Controlled

	Switching Current Switching Current

	Maximum Voltage Maximum Voltage

	Specifications Met Specifications Met

CSA

CE Marked

CCC Marked

TUV Rheinland Certified

	Wire Connection Type Wire Connection Type


Screw Terminals	Screw-Clamp Terminals

	Actuator Base Material Actuator Base Material

Metal

Plastic

	Actuator Material Actuator Material

Plastic

Metal

	Diameter Diameter

	Depth Behind Panel Depth Behind Panel

View catalog pages (10)

Forward

How can we improve?

196 Products

Choosing an Electrical Switch

Metal 22 mm Panel-Mount
Push-Button Switches

Plastic 22 mm Panel-Mount
Push-Button Switches

Space Saver 22 mm Panel-Mount
Push-Button Switches

The built-in contact block in these switches extends behind the panel half the depth of most other 22 mm switches, saving valuable space.

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

A single-piece construction prevents the contact block from separating from the actuator in high-vibration applications.

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

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

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.

Metal 30 mm 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.

30 mm Emergency Stop
Panel-Mount Push-Button Switches

Hazardous Location 30
mm Emergency Stop
Panel-Mount Push-Button Switches

Use these switches where ignitable gas and dust may be present. Their contact blocks are UL listed for Class I, Division 2, Groups B, C, and D hazardous locations.

Enclosed Push-Button Switches

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, 13, and IP66 for protection from washdowns and oil/coolant spraying.

High-Visibility Plastic Emergency
Stop Enclosed Push-Button Switches

A red light flashes when the actuator is pushed, making it easy to see from a distance. They're rated IP65 for protection from washdowns.

Plastic Enclosed
Push-Button Switches

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

Stainless Steel Enclosed
Push-Button Switches

With a stainless steel enclosure, these switches are more durable than aluminum and plastic. They're rated NEMA 4X for protection from corrosion and washdowns.

Steel Enclosed Push-Button Switches

These switches are housed in a durable steel enclosure.

Emergency Stop Outlet-Box-Mount Push-Button Switches

Emergency Stop Outlet-Box-Mount
Push-Button Switches

Immediately cut power with a single push.

Build-Your-Own Switches

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

Choose an actuator and contact block to make your own 30 mm switch.

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.

Terms and Conditions and Privacy Policy

Over 48,000 metals now include traceable material certificates.

Choosing an Electrical Switch

Panel-Mount Push-Button Switches

Metal 22 mm Panel-MountPush-Button Switches

Plastic 22 mm Panel-MountPush-Button Switches

Space Saver 22 mm Panel-MountPush-Button Switches

Vibration-Resistant Plastic 22 mmEmergency Stop Panel-Mount Push-Button Switches

Plastic 22 mm Emergency StopPanel-Mount Push-Button Switches

Metal 22 mm Emergency StopPanel-Mount Push-Button Switches

Plastic 30 mm Panel-MountPush-Button Switches

Plastic Premium 30 mmPanel-Mount Push-Button Switches

Metal 30 mm Panel-MountPush-Button Switches

Metal Premium 30 mmPanel-Mount Push-Button Switches

30 mm Emergency StopPanel-Mount Push-Button Switches

Hazardous Location 30mm Emergency Stop Panel-Mount Push-Button Switches