3PST Switches | McMaster-Carr

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System of Measurement

Switching Current

Electrical Phase

Switching Voltage

Number of Circuits Controlled

Horsepower @ Switching Voltage

Environment

High-Pressure Washdown

Actuator Color

Number of Wires

Housing Color

Enclosure Rating

For Wire Gauge

Certification

UL Recognized Component

Number of Terminals

For Number of Fuses

Housing Material

Switch Action

Switch Type

Knockout Trade Size

RoHS

Compliant with Exemptions

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Export Control Classification Number (ECCN)

EAR99

REACH

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DFARS Specialty Metals

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166 Products

Choosing an Electrical Switch

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.

Durable Disconnect Switches

Protected by a steel enclosure, these switches withstand tougher conditions than switches in a plastic housing. Also known as safety switches, they have quick-make/quick-break action to eliminate arcing and prolong switch life.

Outdoor Durable Disconnect Switches

A raintight NEMA 3R rated enclosure protects these switches outdoors.

Enclosed Disconnect Switches

Cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. These switches are housed in a protective enclosure that resists denting, chipping, and cracking.

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.

Hazardous Location Enclosed Disconnect Switches

With a housing that’s designed to contain an explosion, these switches are safe to use in areas where ignitable concentrations of flammable or combustible gas, dust, or fibers may be present.

Panel-Mount Disconnect Switches

Harsh Environment Panel-Mount
Disconnect Switches

Rated IP69K, these switches are protected from high-pressure and high-temperature washdowns.

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.

Temperature Control

Washdown Wall-Mount Autotuning
Temperature Controllers

For protection in washdown conditions with splashing water, corrosive liquid, and dust, these controllers have a wall-mount housing that meets NEMA 4X. They’re ideal for systems with rapid, unpredictable, or complex temperature changes.

Washdown Wall-Mount Temperature Switches

To protect these switches from splashing water, corrosive liquid, and dust, the housing meets NEMA 4X for washdown conditions.