Auxiliary Contacts | McMaster-Carr

	Electrical Phase Electrical Phase

	Horsepower Horsepower

1/6 hp @ 115 V AC

1/4 hp @ 115 V AC

1/3 hp @ 115 V AC

1/2 hp @ 115 V AC

1 hp @ 115 V AC

1 1/2 hp @ 115 V AC

3 hp @ 115 V AC

5 hp @ 115 V AC

1/10 hp @ 120 V AC

1/8 hp @ 120 V AC

1/4 hp @ 120 V AC

1/3 hp @ 120 V AC

1/2 hp @ 120 V AC

1 hp @ 120 V AC

1 1/2 hp @ 120 V AC

2 hp @ 120 V AC

1/4 hp @ 230 V AC

1/3 hp @ 230 V AC

1/2 hp @ 230 V AC

3/4 hp @ 230 V AC

1 hp @ 230 V AC

2 hp @ 230 V AC

3 hp @ 230 V AC

5 hp @ 230 V AC

7 1/2 hp @ 230 V AC

10 hp @ 230 V AC

15 hp @ 230 V AC

20 hp @ 230 V AC

25 hp @ 230 V AC

1/6 hp @ 240 V AC

1/3 hp @ 240 V AC

1/2 hp @ 240 V AC

1 hp @ 240 V AC

1 1/2 hp @ 240 V AC

2 hp @ 240 V AC

2 1/2 hp @ 240 V AC

3 hp @ 240 V AC

5 hp @ 240 V AC

7 1/2 hp @ 240 V AC

1/2 hp @ 480 V AC

3/4 hp @ 480 V AC

1 hp @ 480 V AC

1 1/2 hp @ 480 V AC

2 hp @ 480 V AC

3 hp @ 480 V AC

5 hp @ 480 V AC

7 1/2 hp @ 480 V AC

10 hp @ 480 V AC

15 hp @ 480 V AC

20 hp @ 480 V AC

25 hp @ 480 V AC

30 hp @ 480 V AC

40 hp @ 480 V AC

50 hp @ 480 V AC

	Input Voltage Input Voltage

	Reversing Capability Reversing Capability

	Mounting Location Mounting Location

	Number of Auxiliary Contacts Number of Auxiliary Contacts

	Maximum Overload Current Maximum Overload Current

50 A or greater

	Auxiliary Contact Switch Starting Position Auxiliary Contact Switch Starting Position

1 Off (Normally Open)

1 On (Normally Closed)

2 Off (Normally Open)

	Minimum Overload Current Minimum Overload Current

25 A or greater

	Reset Type Reset Type

	Width Width

	Height Height

	Depth Depth

	Overload Protection Class Overload Protection Class

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Switch Type Switch Type

	Specifications Met Specifications Met

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant with
Exemptions

	Environmental Rating Environmental Rating

	Environment Environment

	Number of Mounting Holes Number of Mounting Holes

	Mounting Hole Diameter Mounting Hole Diameter

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

How can we improve?

354 Products

About Motor Switches and Starters

More

Motor Control Switches

Motor Starters

Provide on/off control for a motor and protect it from overloads. These starters shut the motor off if current exceeds the full-load current rating.

Low-Profile Motor Starters

With a shallower depth than most other starters, these fit in narrow spaces.

Enclosed Motor Starters

Enclosed Motor Starters

The NEMA 4X rated enclosure protects these starters from corrosion and washdowns.

Compact Enclosed Motor Starters

Compact Enclosed Motor Starters

Sized to fit in tight spaces, these starters have a shorter height and narrower depth than most other starters.

Reversing Motor Starters

Reversing Motor Starters

Use these starters with motors that run forward and backward, such as motors for conveyor belts.

Enclosed Reversing Motor Starters

Enclosed Reversing Motor Starters

Rated NEMA 4X, these enclosed starters are protected from corrosion and washdowns.

Manual Motor Starters

Manual Motor Starters

Operated by hand, these starters are more compact than electrically actuated motor starters; use them when multiple motor circuits are housed in one panel.

Overload Protectors for Motor Starters

Overload Protectors for Motor Starters

Upgrade motor starters that use thermal overload protection with these solid-state overloads—they don't use heating elements, so enclosure ventilation and cooling is not required.

High-Visibility Plastic Emergency Stop Enclosed Push-Button Switches

High-Visibility Plastic Emergency
Stop Enclosed Push-Button Switches

High-Visibility Plastic Emergency Stop Enclosed Push-Button Switches

A red light flashes when the actuator is pushed, making it easy to see from a distance. They're rated IP65 for protection from washdowns.

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