The Siemens 3SE3120-1D is a position switch with a metal enclosure and snap-action contacts. It features 1 Normally Open (NO) + 1 Normally Closed (NC)
The Siemens 3SE3120-1D is a position switch with a metal enclosure and snap-action contacts. It features 1 Normally Open (NO) + 1 Normally Closed (NC) contacts and a roller plunger type C actuator. this model has been discontinued since October 28, 2004, and its successor is the 3SE5112-0CD02, which offers similar functionality with a stainless steel roller plunger and quick-action contacts.