The Siemens SIRIUS 3RV1011-0DA10-0FJ0-ZX95 is a motor protection circuit breaker designed for low-current motor circuits. Its 0.32 A continuous rated current and CLASS 10 trip class mean it protects small motors — fractional-horsepower pumps, fans, or conveyor drives — from overload and short-circuit. The 100 kA breaking capacity at 400 V AC gives it enough interrupting ability to sit upstream of a motor starter without needing a separate backup fuse in most industrial panels. Phase failure detection is built in, so it will trip on a lost phase before single-phasing damages the motor.
Mounting and wiring
Mounts via screw or snap-on onto 35 mm standard mounting rail per DIN EN 50022. The 45 mm width takes one standard module slot on the rail. Screw-type terminals for the main current circuit accept solid or stranded conductors: 2x (0.5...1.5 mm²) and 2x (0.75...2.5 mm²). Depth is 81 mm, height 90 mm. Mounting position is any.
Key ratings at a glance
Rated continuous current: 0.32 A. Motor rating at 400 V: 0.09 kW. Breaking capacity: 100 kA at 240 V, 400 V, 500 V, and 690 V AC. Trip class: CLASS 10. Maximum operating rate at AC-3: 15 switching cycles per hour. Mechanical endurance of main contacts: 100,000 operations typical. Power dissipation at AC in hot operating state: 5.5 W total, 1.8 W per pole. Surge voltage resistance: 6,000 V.
Environmental and approvals
Operating temperature range: -20 to +60 °C. Storage and transport range: -50 to +80 °C. Maximum operating altitude: 2,000 m. Shock resistance: 25g for 11 ms. Front face rated IP20. No ground fault detection.