12 Terminal Switches | McMaster-Carr

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121 Products

Switches

Toggle Switches

Wet-Location Toggle Switches

A rubber seal protects these switches from splashing water.

Mil. Spec. Washdown Toggle Switches

These switches meet MIL-S-3950.

Miniature Toggle Switches

Maximize the space in a panel—these switches are half the size of most toggle switches.

High-Current Toggle Switches

Able to withstand high currents, these switches are often used with motors and pumps.

Corrosion-Resistant Washdown Foot Switches

Step on these switches for hands-free actuation in an area with frequent washdowns.

Frame-Mounted Safety Switches

Also known as interlock switches, these ensure the safety of personnel by automatically shutting off power to machinery when an access door opens. They’re often used with machine guards.

Programmable Potentiometers

For quick, repeatable adjustments to electronic equipment, these potentiometers adjust and save electrical settings. They’re typically used to control speed, volume, or light intensity.

Relays

DIN-Rail Mount Touch-Safe Screw Terminal Relays

Quickly and safely mount these relays on 35 mm DIN rail (also known as DIN 3). IP20 rated, they have recessed terminals that prevent fingers and other objects from touching live circuits.

Smart Multifunction Monitoring Relays

Remotely control these relays through an app on your smartphone—they simultaneously monitor phase, voltage, and frequency.

Multifunction Monitoring Relays

Monitor phase, voltage, and frequency at the same time to protect motors, generators, and other three-phase circuits from burning out or overheating.

Ground-Fault Monitoring Relays

Detect and mitigate ground faults to prevent harm to equipment, circuits, and people.

Safety Relays

Receive signals from safety monitoring relays or controllers to switch devices off and on because of a system failure.

Touch-Safe DIN-Rail Mount Infrequent-Cycle Relays

Operate equipment that cycles on and off from your control cabinet.

Dual-Channel DIN-Rail Mount Multifunction Timer Relays

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays

Control two steps of an electrical process from a single relay—with two fully independent channels and 30 different functions, these relays give you a wide range of possibilities.