The Siemens SIRIUS 3RA2215-0BA15-2AK6 is a non-fused reversing motor starter in size S00, designed for switching and protecting three-phase motors up to 690 V AC-3. It integrates a 3RT2015-1AK62 contactor, a 3RV2011-0BA15 circuit-breaker, and a thermal bimetallic overload relay with Class 10 trip characteristic — meaning it will trip within 10 seconds at 7.2× rated current, matching standard motor starting curves for pumps, fans, and light conveyors.
Rated at 690 V AC-3, this starter handles the common 400 V and 480 V motor circuits found across European and North American panels. The 50/60 Hz operating frequency covers both mains standards without derating. Class 10 overload protection is the standard choice for standard- and high-efficiency induction motors — it allows the inrush during start without nuisance tripping, but clears quickly on a jam. The reversing contactor arrangement (two contactors mechanically interlocked) means the motor can be driven forward and reverse without external interlocking relays. The supplied link module 3RA1921-1DA00 pre-wires the power circuit between the contactors and the circuit-breaker, reducing panel wiring time.
Mounting position is vertical only. Dimensions: 170 mm high, 90 mm wide, 97.1 mm deep. Clearance requirements: 20 mm upward, 10 mm downward, 9 mm to the side, 0 mm forward or backward — so it fits tightly in a standard 200 mm deep enclosure with room for wiring ducts. Main contact terminals accept 0.5 to 4 mm² solid or stranded, or 2x (0.75 to 2.5 mm²) for paralleled feeds. AWG equivalents: 2x (20–16), 2x (18–14), or 2x 12. The auxiliary switch option is available as a product extension, so you can add a feedback contact for PLC status monitoring.