1A Switches | McMaster-Carr

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	Actuator Style Actuator Style


Push Button	Plunger

Roller Lever	Rotary

Key	Slide

Roller Plunger	Finger Touch

Wobble Stick	Palm Button

Mat	Bumper

	Switching Voltage Switching Voltage

	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)

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

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

2 On (Normally Closed)

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	System of Measurement System of Measurement

Inch

	Switching Current Switching Current	Show

	Switching Current Switching Current	Hide

	Number of Terminals Number of Terminals

	Mounting Location Mounting Location

	Number of Circuits Controlled Number of Circuits Controlled

	For Panel Cutout Diameter For Panel Cutout Diameter

	Wire Connection Type Wire Connection Type

Crimp On

Quick-Disconnect Terminals

	Industry Designation Industry Designation

	Maximum Voltage Maximum Voltage

	Number of Positions Number of Positions

	Push-Button Style Push-Button Style


Flush	Projecting

Mushroom

	Switch Type Switch Type

Limit

Manual

Noncontact

	Push-Button Shape Push-Button Shape

Round

	Diameter Diameter

	Actuator Color Actuator Color

	Black		Red
	Green		White
	Gray		Yellow

	Housing Material Housing Material

	Illumination Illumination

Not Illuminated

Illuminated

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

DFARS Specialty Metals
COTS-Exempt

	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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189 Products

Choosing an Electrical Switch

Miniature Panel-Mount Push-Button Switches

Sized for 4 mm or 6 mm panel cutouts, these switches are often used with circuit boards to control electronics.

Low-Voltage 19 mm Panel-Mount Push-Button Switches

Operate low-voltage devices that require less than 48 volts, such as doorbells and buzzers.

Plastic Enclosed Push-Button Switches

Rated NEMA 4X and 13, all switches resist corrosion and can withstand 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.

Rotary Switches

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

Slide Switches

Outlet-Box-Mount Key Switches

Reset fire panels, or open electromagnetic locks, electric strikes, and automatic door openers. These switches require a key to turn circuits on or off, limiting access and preventing accidental activation.

Water-Resistant Miniature Switch Mats

Rated IP67 and NEMA 6, these switch mats withstand washdowns.

Cut-to-Length Low-Profile Switch Mats

Customize the length of these switches by cutting them from a 25-foot roll.

Low-Profile Switch Mats

At only 3/32" thick, these mats fit under carpeting or anywhere else you want to hide them.

Switch Mats

Step on these mats to control doors, lights, or alarms.

Low-Profile Strip Switches

These narrow switches are also thin enough to be hidden under carpeting or installed anywhere space is limited.

Cut-to-Length Low-Profile Strip Switches

Customize the length of these switches by cutting them from a 50-foot roll.

Safety Switch Mats

Prevent personnel from getting too close to dangerous equipment when equipment is on—these mats turn equipment off when someone steps on them or when a fault is detected.

Heavy Duty Safety Switch Mats

Thicker than standard safety switch mats, these withstand repeated impact from heavy and sharp objects.

Two-Hand Safety Switches

It takes two hands to activate these switches, minimizing the risk of accidental equipment start up.

Sealed Touch Pad Switches

Suitable for areas with space limitations, these switches have a low profile and a small footprint. They lay flat or mount to a wall.

Limit Switches

Low-Profile Wet-Location Limit Switches

Stack these slim switches together, or fit them into tight spaces. They're rated IP67 for protection from temporary submersion.

Panel-Mount Low-Profile Wet-Location Limit Switches

Secure these switches into panels using mounting nuts.

Corrosion-Resistant Washdown Limit Switches

Rated NEMA 6P, 13, and IP67, these switches are protected from corrosion, oil/coolant spraying, washdowns, and temporary submersion.

Frame-Mounted Safety Switches

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

Bumper Switches

Sensitive along their entire length, these switches are often used to signal when an overhead door closes or an item reaches the end of a conveyor.

Safety Bumper Switches

Prevent automatic doors from closing on a person or an object—these switches immediately turn machinery off when actuated with minimal force.

High-Force Safety Bumper Switches

Minimize false triggers—these switches require 10 lbs. of actuation force in order to shut off machinery immediately.

Magnetically Actuated Switches

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

Long-Life Surface-Mount Timer Relays

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

Tablet Holders with Emergency Stop Push-Button Switch

Halt machinery in an instant with these tablet holders. They equip your tablet with safety switches that meet IEC and EN standards, so you can safely move around your equipment while teaching robots or monitoring production lines and conveyor systems.