Changeover mechanism for 3RT105 contactors
The Siemens 3RT1955-5PP31-0SW0 is a changeover operating mechanism designed specifically for 3RT105 contactors, handling both AC (50...60 Hz) and DC operation across a 200...277 V supply range. The electronic operating mechanism includes a PLC input at 24 V DC and an RLT signal, allowing direct integration into a control system without an interface relay.