NEMA 4 Limit Switches | McMaster-Carr

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55 Products

Limit Switches

Safety Limit Switches

Protect machinery and personnel by opening the circuit even if a spring fails or contacts stick

8 products

Low-Profile Limit Switches

Slim enough to stack multiple switches together or fit into tight spaces

10 products

Compact Safety Limit Switches

Shorter and thinner than other safety limit switches to fit into tight spaces

8 products

Sealed Low-Profile Limit Switches

Sealed to keep out contaminants and slim enough to stack together or fit into tight spaces

2 products

Rotary Limit Switches

Start or stop equipment after a set number of rotations to avoid over-rotation

4 products

Heavy Duty Limit Switches

Rugged enough for mining operations, but they require high actuation force, such as heavy rocks

5 products

Other Products

Snap-Acting Switches

Open and close circuits quickly to minimize arcing and sticking; often used as door-open indicators

9 products

Tilt Switches

Trip circuits when tilted; use as position indicators, pump level controls, and limit switches

8 products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

1 product