The Siemens 3RA1215-1AA15-1AU6 is a SIRIUS combination reversing starter in frame size S00, rated for 1.1–1.6 A at 480 VAC control voltage. It integrates a reversing contactor pair with overload protection into a single DIN-rail or panel-mount unit, which simplifies wiring and saves panel space compared to building the reversing circuit from discrete components.
The 1.1–1.6 A current range sets the motor full-load current this starter can protect and switch. The 480 VAC control voltage means the coil is designed for a 480 V line-to-line control circuit. Frame size S00 is the smallest SIRIUS footprint.