The Siemens 3RA1215-0HA15-1AP6 is a reversing combination starter from the SIRIUS family, frame size S00, rated for 0.55 to 0.8 A. It integrates a motor-protective circuit breaker (MSP), a reversing contactor pair, and control circuitry into a single DIN-rail or panel-mount unit. The 600 VAC control voltage means the coil circuit is designed for line-voltage control at 600 VAC, not a lower separate control supply — verify your panel's control transformer taps before wiring.
The unit carries one SPDT auxiliary contact on the MSP (Aux-1) and two additional NO auxiliary contacts on the contactors (Aux-2). The SPDT gives you both a normally-open and normally-closed signal from the breaker's trip status — useful for feeding a PLC input that needs to see both the run state and the fault state. The two NO contactor auxiliaries can be wired for electrical interlocking of the reversing pair or for status feedback to a controller. Per the datasheet, verify the auxiliary contact ratings match your load before committing the BOM line.