Siemens 3RH1122-1AK60 is a SIRIUS four-pole contactor relay with 2 normally open and 2 normally closed contacts, built for industrial control circuits. It operates on an AC coil of 110 V at 50 Hz (and 120 V at 60 Hz) and uses screw terminals in frame size S00 for secure wiring. The unit is rated for insulation voltage up to 690 V and features IP20 protection on the front housing, with an operating temperature range of -25°C to +60°C. Typical applications include motor control, PLC interface, and sequencing or interlock tasks in automation panels where a compact, reliable 4-pole relay is required.
