Contact Sensors | McMaster-Carr

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	Actuator Style Actuator Style

Cross Roller Plunger

Dual Simulated Roller

Dual Switch Roller Lever

	Switching Voltage Switching Voltage

	Wire Connection Type Wire Connection Type

Screw Terminals

Quick-Disconnect Terminals

Spade Terminals

	System of Measurement System of Measurement

	Switching Current Switching Current

	Maximum Voltage Maximum Voltage

	Switch Starting Position Switch Starting Position

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

1 Off (Normally Open)

1 On (Normally Closed)

2 Off (Normally Open) and 2
On (Normally Closed)

2 Off (Normally Open) or 2
On (Normally Closed)

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

1 Off (Normally Open) and 2
On (Normally Closed)

	Industry Designation Industry Designation

	Number of Terminals Number of Terminals

	Number of Circuits Controlled Number of Circuits Controlled

	Actuator Height Actuator Height

0.5"-4.3"

0.5"-8"

0.5"-11.8"

0.6"-5.8"

0.9"-3"

1.2"-3.3"

1.4"-5.9"

1.5"-5"

1.7"-4.2"

1.9"-3.4"

2"-2.3"

2.1"-3.9"

	Environment Environment

Temporary
Submersion

Hazardous
Location

	Housing Material Housing Material

Stainless
Steel

	Switch Type Switch Type

	Housing Length Housing Length

	Housing Height Housing Height

	Actuation Force Actuation Force

	Housing Depth Housing Depth

	Number of Mounting Holes Number of Mounting Holes

	Environmental Rating Environmental Rating

	Switch Action Switch Action

Springs Back (Momentary)

Stays Switched (Maintained)

	Power Power

1/4 hp @ 125 V AC

1 hp @ 125 V AC

1/4 hp @ 250 V AC

1/2 hp @ 250 V AC

2 hp @ 250 V AC

	Specifications Met Specifications Met

UL

CSA

CE

DIN

Mil. Spec.

	Sensor Type Sensor Type

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225 Products

Switches

Snap-Acting Switches

Snap-Acting Switches

Open and close circuits quickly to minimize arcing and prevent contacts from sticking. These switches are often used as door-open indicators on appliances and enclosures.

Limit Switches

Often used on conveyor systems and bin filling operations, these switches have the rapid-closing action of a snap-acting switch but have a large actuator for sensing larger objects.

Noncontact Switches

Remotely sense an object in motion to open or close a circuit.

Other Contact Sensors

Automatic Leveling
Probes for 3D Printers

Automatic Leveling Probes for 3D Printers

Trace the ups and downs of your print surface. These probes automatically adjust your printer’s head to be level with the surface—even if the surface isn’t level.

Door Alarms

Door Alarms

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