The Siemens SIRIUS 3RV2011-1AA20-ZW97 is a motor protection circuit breaker designed for the main current circuit, with a rated current of 1.6 A and a Trip Class 10 characteristic. It carries a 100 kA breaking capacity at 400 V AC, meaning it can safely interrupt fault currents up to that level without upstream fuses needing to clear — a key spec for SCCR compliance in a panel.
Fit and Mounting
Mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715. The 45 mm width (3 TE) fits standard enclosure cutouts; depth is 97 mm, height 106 mm. Clearance requirements: 50 mm above and below, 30 mm at the sides, zero forward or backward. Any mounting position is acceptable.
Protection and Ratings
Trip Class 10 means it will trip within 10 seconds at 7.2× rated current — the standard for protecting standard induction motors during start-up. Phase failure detection is built in; ground fault detection is not. Back-up fuse ratings: 20 A gL/gG at 500 V, 16 A gL/gG at 690 V. The rated voltage range spans 20 to 690 V. Switching frequency is 15 operations per hour for AC-3 duty.
Environmental and Connections
Operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C. Spring-loaded terminals accept 2 × (0.5 to 4 mm²) solid or stranded conductors. Motor horsepower ratings: 0.1 hp at 230 V, 1 hp at 460/480 V, 0.8 hp at 575/600 V.