The Siemens 3RV1011-1GA25 is a SIRIUS motor-protective circuit breaker rated for 6.3 A continuous current with a CLASS 10 trip curve — meaning it trips within 10 seconds at 7.2× the set current, fast enough to protect standard induction motors from locked-rotor damage without nuisance tripping on normal starts.
Breaking capacity and fault clearing
Rated breaking capacity hits 100 kA at 240 V AC and 400 V AC, dropping to 3 kA at 500 V AC and 2 kA at 690 V AC. That 100 kA figure at 400 V means this breaker can safely interrupt a high-fault-current bolted short on a 400 V line without upstream fuses needing to coordinate — a real time-saver in panel design where the available fault current is high.
Termination and mounting
Spring-loaded terminals on the main circuit accept 2x (0.25... 2.5 mm²) solid or 2x (24... 14 AWG) stranded — no screw torque to check, just strip and push. Mounts via screw or snap-on onto 35 mm DIN rail per EN 50022, and the 45 mm width means it takes up a single modular slot. Any mounting position is allowed, and the front face carries IP20 finger protection.
Lifecycle and sourcing
Listed as current production — no phase-out or last-time-buy notice. Sourced and quoted to order against an RFQ through independent distribution.
Environmental and mechanical limits
Operates from -20 to +60 °C; stores or ships from -50 to +80 °C. Shock rated at 25 g / 11 ms, so it holds up in transport and moderate vibration environments. Altitude limit is 2 000 m without derating.