25A Switches | McMaster-Carr

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125 Products

Switches

Cam Panel-Mount Lever Switches

Thanks to their ability to handle higher current than switches with contact blocks, these switches are often found in applications from large motors to warehouse lighting systems.

Impact-Resistant Pendant Switches

A durable rubber housing covers the buttons and protects these switches from impact.

Snap-Acting Switches

Open and close circuits in a snap. These switches actuate quickly to minimize arcing and prevent contacts from sticking.

Miniature Snap-Acting Switches

Smaller than standard snap-acting switches, these switches trigger actions in tight spaces. They’re used in components as small as computer mice and engine restart switches.

Enclosure Motor Switches

Designed to mount on an electrical enclosure, these switches control motors, lighting, and electric heat circuits.

Disconnect Switches

Panel-Mount Compact Disconnect Switches

Install these switches in a panel cutout.

Enclosed Compact Disconnect Switches

Small yet mighty, these switches are about as tall and wide as an index card yet durable enough to mount directly to a wall.

Panel-Mount Disconnect Switches

Washdown Enclosed Disconnect Switches

The IP66 rated housing not only shields these switches from washdowns but also makes them durable enough to be mounted outside of an electrical panel.

Enclosure Disconnect Switches

Install these switches inside an enclosure to prevent it from opening when power is on—turn the switch to disconnect power and release the door.

Manual Override Enclosure Disconnect Switches

Keep power running while you access your enclosure. Unlike standard enclosure disconnect switches, which shut off power as you open your enclosure, these have an override function.

DIN-Rail Mount Disconnect Switches

Often used in electrical enclosures, these switches mount directly to DIN rails. They cut power and keep it isolated to stop equipment from starting up during inspection and maintenance.

Relays

DIN-Rail Mount Solid State Relays

Unlike mechanical relays, these solid state relays have no moving parts, so they require less maintenance and last longer, switch faster, and are quieter. They mount on 35 mm DIN rail (also known as DIN 3) for fast installation.

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.

Screw Terminal Relays

Use the screw terminals to hardwire these relays.

Spade-Terminal Relays

Using a low-current signal, these relays are often used to control small motors and heaters.

Infrequent-Cycle Relays

For use with equipment that cycles on and off, these relays meet UL 508 for air conditioning and heating. Also known as definite-purpose contactors.

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.