Siemens 3RH2131-1AP00 Contactor

Siemens 3RH2131-1AP00 is a SIRIUS 3RH2 auxiliary contactor relay in frame size S00 that adds four contacts to a control circuit: three normally open contacts and one normally closed contact, all configured as a four-pole device. It is powered by a 230 V AC coil (50/60 Hz) and uses screw terminals for straightforward wiring, making it ideal for control circuits that require additional auxiliary contacts alongside a main contactor. With a compact 0.233 kg frame, insulation voltage of 690 V and surge resistance of 6 kV, this Siemens auxiliary contactor belongs to the Sirius 3RH2 family and is commonly used to manage motors, interlocks, and sequencing in industrial controls, providing reliable auxiliary switching for 230 V AC control circuits.