The Siemens 3RV1011-1CA25 is a SIRIUS motor protection circuit breaker rated for 2.5 A continuous current with a Class 10 trip characteristic, designed to protect three-phase induction motors up to 0.75 kW at 400 V. The spring-loaded terminals accept 2x (0.25...2.5 mm²) solid or stranded wire, or 2x (24...14) AWG, with no screw-torque requirement — a time-saver on the panel build.
Dimensions are 45 mm wide, 90 mm high, 81 mm deep — a standard SIRIUS breaker footprint that drops into existing 3RV1 panel layouts without re-drilling. No clearance needed at the sides or rear, so you can pack breakers tight on the rail. Any mounting position, and the IP20 front protection keeps fingers clear of live terminals inside the enclosure.
The 100 kA breaking capacity at 240 V and 400 V AC drops to 10 kA at 500 V and 2 kA at 690 V. The 690 V rating of 2 kA is lower but still adequate for most 690 V motor circuits where the transformer impedance limits fault current. The surge voltage resistance of 6 000 V aligns with IEC 60947-2 overvoltage category III.
Shock resistance is 25 g for 11 ms. The substance prohibition date of 01.01.2013 aligns with RoHS and REACH compliance deadlines — the part is manufactured to meet those substance restrictions.