Motor protection circuit breaker, 0.63 A, CLASS 10
The Siemens SIRIUS 3RV1021-0GA10-ZW98 is a motor protection circuit breaker rated for a continuous current of 0.63 A with a CLASS 10 trip characteristic. Breaking capacity is 100 kA across the full AC voltage range from 240 V to 690 V, so it can be applied on high-fault-current panels without requiring an upstream current-limiting fuse for most installations. The unit mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022, occupies 45 mm width, and accepts screw-type terminals for the main circuit — solid or stranded conductors from 1 to 6 mm².
Integration and deployment
Designed for motor protection in control panels, the 3RV1021-0GA10-ZW98 includes phase failure detection and is rated for any mounting position, with an IP20 front face — suitable for enclosed panel installation where personnel contact is limited to the front. Operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C. Shock resistance is 25 g for 11 ms, and surge voltage withstand is 6 kV. The breaker is rated for a maximum altitude of 2000 m and has a mechanical life of 100,000 operations. Power loss at rated current in hot operating state is 5.5 W total, 1.8 W per pole.