30 mm Switches | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	For Panel Cutout Diameter For Panel Cutout Diameter	Show

30 mm

	For Panel Cutout Diameter For Panel Cutout Diameter	Hide

	Actuator Style Actuator Style


Push Button	Lever

Key	Finger Touch

	Actuator Color Actuator Color

	Black		Red
	Green		White
	Yellow		Blue
	Orange

	Switching Voltage Switching Voltage

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	Push-Button Style Push-Button Style


Flush	Projecting

Mushroom

	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)

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

2 On (Normally Closed)

	Illumination Illumination

Not Illuminated

Illuminated

	Environment Environment

	Number of Positions Number of Positions

	Number of Terminals Number of Terminals

	Number of Circuits Controlled Number of Circuits Controlled

	Actuator Base Material Actuator Base Material

Metal

Plastic

	Maximum Voltage Maximum Voltage

	Environmental Rating Environmental Rating

IP20

IP65

IP66

NEC Class I Division 2
Groups B, C, D

NEC Zone 2 Groups
IIB, IIA

	Mounting Location Mounting Location

Panel

	Wire Connection Type Wire Connection Type


Screw Terminals	Wire Leads

	Switching Current Switching Current

	Industry Designation Industry Designation

	Diameter Diameter

	Switch Type Switch Type

Manual

	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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172 Products

Choosing an Electrical Switch

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.

Plastic 30 mm Panel-Mount Push-Button Switches

Flush-Mount 30 mm Panel-Mount Push-Button Switches

The face of these switches mounts flush against a panel, so they're easy to clean and hard to damage.

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.

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.

30 mm Multifunction Panel-Mount Push-Button Switches

Save space on a panel by using one switch to perform multiple switching functions.

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.

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.

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

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

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.

Light Beam Finger-Touch Switches

An infrared light beam senses the lightest finger contact to switch a circuit on or off.

Harsh Environment Potentiometers

Rated NEMA 4X and 13, these potentiometers are protected from debris, washdowns, and oil/coolant spraying.