The Siemens 3RV6011-0BA15 is a SIRIUS motor protection circuit breaker in the compact S00 frame, designed for protecting 3-phase motor circuits up to 0.2 A rated operational current. It combines a thermal overload release (Class 10 trip characteristic) with a magnetic short-circuit release in a single 45 mm wide, 3-pole device. The 0.2 A rating makes it suitable for fractional-horsepower motors, small pumps, fans, or conveyor drives where fine overload protection is needed. The S00 frame keeps panel depth to 96 mm, fitting tight enclosures where every millimeter counts.
Trip class and protection coordination
The magnetic short-circuit trip (fixed, non-adjustable) clears bolted faults instantly. Total power loss is 5 W typical at rated load, which matters for thermal budgeting in sealed, high-density panels. The 6 kV rated surge voltage resistance (impulse withstand) ensures coordination with upstream surge protection devices.
For projects requiring REACH or UL documentation, the SIRIUS series typically provides declarations via Siemens Industry Online Support.
Main and auxiliary circuits use screw-type terminals. Main contacts accept 2× (0.5 to 1.5 mm²) solid/stranded or 2× (0.75 to 2.5 mm²) — or 2× (18 to 12 AWG) / 2× (20 to 16 AWG). Auxiliary terminals take 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²), with AWG equivalents 2× (20 to 16) and 2× (18 to 14). Tightening torque for main contacts: 0.8 to 1.2 N·m. Clearance requirements: 50 mm upwards and downwards, 30 mm at the sides, 0 mm forwards and backwards — essential for arc-flash containment and heat dissipation in the panel layout.