Siemens 3RT1054-6AF36 Three Phase AC Contactor

Siemens 3RT1054-6AF36 Sirius three-pole power contactor is designed for AC-3e/AC-3 motor switching in IEC installations. It is rated for 115 A in AC-3e service and 55 kW at 400 V (50–60 Hz), making it suitable for moderate-load motors in industrial panels. The device uses a conventional main circuit with busbar control and auxiliary circuit wiring via screw terminals, and it includes 2 normally open and 2 normally closed auxiliary contacts for interlocking and control signaling. The coil voltage is 110–127 V and supports AC or DC operation, offering flexibility in control wiring. This unit belongs to Siemens’ Sirius 3RT family (frame size S6) and is a 3-pole contactor intended for standard IEC motor control applications.