5 Terminal Switches | McMaster-Carr

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	Switching Voltage Switching Voltage

	Input Voltage Input Voltage

	System of Measurement System of Measurement

Inch

	Switching Current Switching Current

	Actuator Style Actuator Style


Push Button	Plunger

Roller Lever	Key

Roller Plunger

	Number of Terminals Number of Terminals	Show

	Number of Terminals Number of Terminals	Hide

	Maximum Voltage Maximum Voltage

	Mounting Location Mounting Location

Printed
Circuit Board

Relay Socket

Surface

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

1 Off (Normally Open) or 1
On (Normally Closed)

1 On (Normally Closed)

	Industry Designation Industry Designation

SPDT

SPST-NO

	Number of Circuits Controlled Number of Circuits Controlled

	Specifications Met Specifications Met

	Maximum Resistance Maximum Resistance

	Switch Action Switch Action

Springs Back (Momentary)

	Housing Material Housing Material

Aluminum

Metal

Zinc

	Environment Environment

	Relay Type Relay Type


Standard	Timer

Signal

	Wire Connection Type Wire Connection Type

Quick-Disconnect Terminals

Screw Terminals

Solder

Solder Pin Terminals

	Environmental Rating Environmental Rating

IP40

IP67

NEC Class I Divisions 1, 2
Groups C, D

NEC Class II Divisions 1, 2
Groups E, F, G

NEMA 4

NEMA 4X

NEMA 13

	Application Application

Power

Signal

	Width Width

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

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136 Products

Switches

Keyboard Push-Button Switches

Also known as tactile switches, these are small enough to fit inside a computer keyboard.

Safety Limit Switches

Protect machinery and ensure the safety of personnel—these switches will open the circuit when actuated even if a spring fails or the contacts stick.

Potentiometers

Vary electrical flow to control speed, volume, and light intensity. Also known as variable output switches or rheostats.

Relays

Flange-Mount Spade-Terminal Relays

Mount relays to a flat surface using the slot on the flange.

Thin Spade-Terminal Relays

Thinner than other spade-terminal relays, these fit in tight spaces.

Spade-Terminal Relays

Attach quick-disconnect terminals or plug relays into relay sockets.

PC-Board Pin Relays

Solder these relays to a printed circuit board.

High-Starting-Current Vehicle Relays

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

Weatherproof High-Starting-Current Vehicle Relays

The extended housing covers and protects terminals.

Medium-Current Relays

These relays are rated for motors with 1-3 horsepower or 15-90 amps—use them with industrial automation systems, security and emergency lighting, and small motors. Also known as power relays.

Ultra-Thin Signal Relays

Maximize space inside your control cabinet—these relays are extra narrow.

Ultra-Thin Signal Relays with Socket

Plug these relays into the included socket for fast installation; they disconnect for easy replacement.

Signal-Conditioning Ultra-Thin Signal Relays

Also known as input modules, these relays condition electrical signals into signals for PLCs and microprocessors and prevent power surges from reaching these devices.

Thin Signal Relays with PLC Protection and Socket

Prevent voltage spikes from damaging your programmable logic controller or other sensitive control device. Thinner than other signal relays, these fit in tight spaces.

Timer Relays

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Maximize space inside your control cabinet.

Long-Life Surface-Mount Timer Relays

With no moving parts, these solid state relays have an extended service life.

Surface-Mount Timer Relays

Use the mounting hole to attach these relays to a flat surface.

Medium-Current Timer Relays

Also known as power relays, these relays are rated for 1 horsepower or 30 amps and are suitable for compressors, blowers, and heaters.

Remote Test Stations for Smoke Detectors for HVAC Systems

Remote Test Stations for Smoke
Detectors for HVAC Systems

Check that your HVAC smoke detector is working properly. Wire these test stations to your smoke detector controller to test difficult to access smoke detectors from a convenient location.

Speed-Monitoring Switches

Set to a specific speed to detect unwanted machinery slowdown that can cause damage and downtime.

Switches

Keyboard Push-Button Switches

Safety Limit Switches

Potentiometers

Relays

Flange-Mount Spade-Terminal Relays

Thin Spade-Terminal Relays

Spade-Terminal Relays

PC-Board Pin Relays

High-Starting-Current Vehicle Relays

Weatherproof High-Starting-Current Vehicle Relays

Medium-Current Relays

Ultra-Thin Signal Relays

Ultra-Thin Signal Relays with Socket

Signal-Conditioning Ultra-Thin Signal Relays

Thin Signal Relays with PLC Protection and Socket

Timer Relays

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Long-Life Surface-Mount Timer Relays

Surface-Mount Timer Relays

Medium-Current Timer Relays

Remote Test Stations for Smoke Detectors for HVAC Systems

Remote Test Stations for SmokeDetectors for HVAC Systems

Speed-Monitoring Switches

Speed-Monitoring Switches

Remote Test Stations for Smoke
Detectors for HVAC Systems