The Siemens 3SE2120-1R is a metal-enclosed position switch with snap-action contacts (1NO + 1NC) and a spring rod actuator. This model has been discontinued since January 31, 2012, and its successor is 3SE5112-0CR01.

Enclosure: Metal

Contacts: 1NO + 1NC (snap-action)

Actuator: Spring rod

Thread Size: 1 x M20 x 1.5

Protection Class: IP67

Operating Temperature: -30°C to +85°C

Voltage Rating: 230V/500V AC-15/AC-12

Current Rating: 6A/10A

Mounting Type: Screw mounting

Explosion Protection: None

Dimensions: 142.5mm total length with plastic plunger (50mm)

Weight: 0.230 kg