High-Amp Electrical Relays | McMaster-Carr

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Switching Current

Input Voltage

Number of Circuits Controlled

Switching Voltage

42V AC to 660V AC

80V AC to 265V AC

102V AC to 132V AC

180V AC to 660V AC

190V AC to 550V AC

240V AC to 300V AC

8V DC to 18V DC

8V DC to 20V DC

9V DC to 16V DC

Electrical Phase

Number of Terminals

Horsepower @ Switching Voltage

1/3 hp @ 115V AC

3/4 hp @ 115V AC

1 1/2 hp @ 115V AC

7 1/2 hp @ 115V AC

1/2 hp @ 120V AC

3/4 hp @ 120V AC

1 1/2 hp @ 120V AC

Switch Designation

Mounting Location

Wire Connection

Quick-Disconnect Terminal

Switch Starting Position

Operation Type

Load Type

Switch Action

Control Power

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Certification

UL Recognized Component

Width

Number of Mounting Holes

Mechanical Life Cycles

Height

Depth

Mounting Hole Diameter

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324 Products

Relays

Water-Resistant Stud-Terminal Relays

Water-Resistant Stud-Terminal Relays

Sealed to keep out water, these relays are often used for DC-powered equipment such as forklifts, floor scrubbers, and trucks.

Stud-Terminal Relays

Stud-Terminal Relays

Suitable for DC-powered equipment such as forklifts, floor scrubbers, and trucks.

High-Starting-Current Vehicle Relays

High-Starting-Current Vehicle Relays

Also known as automotive relays, these relays can handle high starting (inrush) currents.

Weatherproof High-Starting-Current Vehicle Relays

Weatherproof High-Starting-Current Vehicle Relays

An extended housing shields the terminals on these relays from weather.

Solid State High-Starting-Current Vehicle Relays

Solid State High-Starting-Current Vehicle Relays

With no moving parts, these solid state relays require less maintenance and last longer, switch faster, and are quieter, than mechanical relays. Also known as automotive relays.

DIN-Rail Mount Touch-Safe Screw Terminal 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.

DIN-Rail Mount Solid State Relays

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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.

Infrequent-Cycle Relays

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.

Touch-Safe DIN-Rail Mount Infrequent-Cycle Relays

Touch-Safe DIN-Rail Mount Infrequent-Cycle Relays

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

Analog-Input Proportional-Control Relays

Analog-Input Proportional-Control Relays

Often used to regulate the speed of AC fans or keep a heater at a set temperature, these relays connect directly to sensors to calculate and adjust output power. This allows you to use an analog input without converting it to a digital signal to control output power.

Replacement Contacts for Relays

Replace worn contacts instead of replacing the entire relay.

High-Current Lighting Relays

High-Current Lighting Relays

Switch lighting systems on and off—these relays can handle the high switching current on large overhead light systems.

Heavy Duty Build-Your-Own Manual Motor Starters

Heavy Duty Build-Your-Own Manual Motor Starters

Combine a switch and a thermal overload element to build a starter that can handle high-current-rated motors. Also known as a NEMA starter.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)