The Siemens 3RV2011-0BA10 is a SIRUS motor protection circuit breaker in the size S00 frame, designed for motor protection with Trip Class 10 and phase failure detection. Current lifecycle stage — no obsolescence notice on record.
Compared to the sibling 3RV2011-0BA20, the -0BA10 shares the same size S00 frame, same DIN rail footprint, and same 100 kA breaking capacity at 400 V. The deciding difference is the trip class: the -0BA10 is Class 10, while the -0BA20 is Class 20. Both parts mount identically and accept the same screw-type terminals (M3 main contacts, 2x 0.75–2.5 mm² solid/stranded).
Any mounting position. Clearance: 50 mm upward and downward, 30 mm at the side, zero forward or backward. Screw-type terminals for the main circuit (M3), accepts 2x 0.75–2.5 mm² or 2x 4 mm² solid/stranded. Screwdriver shaft diameter 5–6 mm, Pozidriv size 2 tip.
