Panic Buttons | McMaster-Carr

	Push-Button Style Push-Button Style


Mushroom	Recessed

	Reset Type Reset Type

	Switching Voltage Switching Voltage

	For Panel Cutout Diameter For Panel Cutout Diameter

	Illumination Illumination

Not Illuminated

Illuminated

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

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

1 On (Normally Closed)

2 Off (Normally Open)

2 On (Normally Closed)

	Environment Environment

High-
Pressure
Washdown

Hazardous

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	Push-Button Shape Push-Button Shape

Round

Triangular

	Number of Circuits Controlled Number of Circuits Controlled

	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

	Maximum Voltage Maximum Voltage

	Mounting Location Mounting Location

Panel

Outlet Box

Surface

	Diameter Diameter

	Switching Current Switching Current

	Specifications Met Specifications Met

	Industry Designation Industry Designation

	Wire Connection Type Wire Connection Type


Screw Terminals	Screw-Clamp Terminals

	Actuator Base Material Actuator Base Material

Metal

Plastic

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

DFARS Specialty Metals
COTS-Exempt

	For Maximum Number of Contact Blocks For Maximum Number of Contact Blocks

	Number of Circuits Controlled per Button Number of Circuits Controlled per Button

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152 Products

Choosing an Electrical Switch

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

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.

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

Labels for 22 mm Emergency Stop
Panel-Mount Push-Button Switches

Clearly mark your emergency push-button switches.

30 mm Emergency Stop
Panel-Mount Push-Button Switches

Immediately cut power with a single push.

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.

16 mm Emergency Stop
Panel-Mount Push-Button Switches

Immediately cut power with a single push.

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.

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.

Recessed Push-Button Switches

Often used to trigger alarms, these switches have a recessed button to prevent accidental activation. Mount under desks or in other discrete locations to avoid drawing attention.

Emergency Stop Outlet-Box-Mount
Push-Button Switches

Immediately cut power with a single push.

Choosing an Electrical Switch

Push-Button Switches

Plastic 22 mm Emergency StopPanel-Mount Push-Button Switches

Vibration-Resistant Plastic 22 mm EmergencyStop Panel-Mount Push-Button Switches

Metal 22 mm Emergency StopPanel-Mount Push-Button Switches

Labels for 22 mm Emergency StopPanel-Mount Push-Button Switches

30 mm Emergency StopPanel-Mount Push-Button Switches

Hazardous Location 30 mm EmergencyStop Panel-Mount Push-Button Switches

16 mm Emergency StopPanel-Mount Push-Button Switches

Plastic Emergency Stop Enclosed Push-Button Switches

Aluminum Emergency StopEnclosed Push-Button Switches

High-Visibility Plastic EmergencyStop Enclosed Push-Button Switches

Recessed Push-Button Switches

Emergency Stop Outlet-Box-MountPush-Button Switches

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

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

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

Labels for 22 mm Emergency Stop
Panel-Mount Push-Button Switches

30 mm Emergency Stop
Panel-Mount Push-Button Switches

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

16 mm Emergency Stop
Panel-Mount Push-Button Switches

Aluminum Emergency Stop
Enclosed Push-Button Switches

High-Visibility Plastic Emergency
Stop Enclosed Push-Button Switches

Emergency Stop Outlet-Box-Mount
Push-Button Switches