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Siemens 3SE5 232-1LC05 Mechanical Position Switch, Complete Unit, Plastic Enclosure, 31mm Width, Rounded Plunger, 1 Yellow LED, 1 Green LED, Snap Action Contacts, 1 NO + 2 NC Contacts, 24VDC LED Voltage

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Specifications for this item
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Part Number
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Contact Type
1 NO + 2 NC

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Key Features

  • Rounded plunger actuator for push-type operation
  • 31 mm wide plastic enclosure provides IP65 protection against dust and liquids
  • Snap action contacts for simultaneous NC and NO switching
  • LED signaling indicator alerts users to issues, etc.
  • Meets EN 60947-1 standard for positive opening of NC contacts

Package Details

Shipping Weight: 0.02 pounds
Package Size: 3.6 x 1.8 x 1.7 inches

Product Description

This Siemens 3SE5 232-1LC05 mechanical position switch comes as a complete unit with a 31 mm wide plastic enclosure, one NO and two NC snap action contacts, one yellow and one green LED, and a rounded plunger tip, and is suitable for use in plant and building automation systems. The snap action normally-closed (NC) and normally-open (NO) contacts switch from closed to open and open to closed at the same time, regardless of the actuating speed, and the rounded plunger forcibly opens the NC contacts for use in safety circuits. The two 24 VDC LEDs indicate switch system status and alert users to issues. The rounded plunger actuator tip can be rotated around the enclosure axis in increments of 22.5 degrees. This mechanical position switch conforms to the European Committee for Electrotechnical Standardization (CENELEC) EN 50047 standard for dimensions and mechanical data and the EN 50041 standard for quality assurance, and is suitable for use in applications in which there is push-type activation.


Positive opening of NC contactsEN 60947-1
Quality assuranceEN 50041
Dimensions and mechanical dataEN 50047
Degree of protectionIP65
LED voltage24 VDC
Dimensions*68 x 31 x33 mm (H x W x D)

*H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Mechanical position and safety switches are used to make or break electrical connections as part of a plant or building automation system. The switch is composed of a contact block with two or more contacts, an enclosure for protection, and an actuator head for monitoring object movement. Switch contacts can be normally open or normally closed, and switch connections can be either quick or slow, according to the requirements of an application, and they can include status LEDs and connector sockets. Actuator head types include rounded and roller plungers, roller and angular roller levers, spring rods, twist levers and rod actuators with a twist actuator, and fork levers with a twist actuator. Position and safety switches are used in applications such as elevators, emergency exits, and as emergency shutoffs in industrial workplaces.

Siemens manufactures electronic products for building automation, industrial drives, lighting, energy generation, medical equipment, and rail transportation. The company, founded in 1847 and headquartered in Germany, meets International Standards Organization (ISO) standards 14001, 9001 and TS 16949.

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