The 3RA2115-0BA15-1BB4: It integrates a 3RT2015-1BB41 contactor, a 3RV2011-0BA15 circuit breaker, and a 3RA1921-1DA00 link module into a single, pre-assembled unit — reducing panel wiring and component count.
Trip Class 10 and thermal overload — what it means for motor protection
The short-circuit trip is magnetic, providing instantaneous protection against high fault currents; the unit includes a built-in short-circuit release, so no separate fuse or MCCB is needed upstream for the feeder. Rated operational power at 400 V is 60 W, at 500 V also 60 W, and at 690 V it reaches 90 W — these are the motor power limits the starter can switch and protect under those line voltages.
Snap-mounts onto 35 mm DIN rail or can be screw-mounted using an additional push-in lug — the same unit serves both new builds and retrofit panels. Mounting position is vertical only; the unit is 45 mm wide, 97.1 mm deep, and 167.2 mm high, with 20 mm clearance required above and 10 mm below for ventilation and wiring. Degree of pollution 3 means it is rated for industrial environments with conductive dust or occasional condensation — no additional conformal coating needed for typical panel conditions.
The supplied contactor (3RT2015-1BB41) and circuit breaker (3RV2011-0BA15) are standard SIRIUS components, so replacement parts and spares are widely stocked in the supply base.