Motor protection circuit breaker for panel integration
The Siemens SIRIUS 3RV2021-1HA10-ZW96 is a motor protection circuit breaker designed for motor protection, with Trip Class 10 and phase failure detection. It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, making it a direct fit for standard industrial control panels. The 45 mm width and 97 mm depth keep the footprint compact for dense panel layouts.
Breaking capacity and voltage ratings
This breaker delivers 100 kA breaking capacity at 240 V and 400 V AC, dropping to 42 kA at 500 V and 4 kA at 690 V. At 480 V and 600 V the rated current is 8 A. These ratings cover most industrial motor branch circuits in North American and European voltage systems.
Mounting and environmental limits
Mounting position is any, with screw and snap-on onto 35 mm DIN rail. Clearance requirements: 50 mm upwards and downwards, 30 mm at the side, 0 mm forwards and backwards. Operating temperature range -20 to +60 °C, storage and transport -50 to +80 °C. Screw-type terminals for the main current circuit accept solid or stranded conductors: 2x (1…2.5 mm²) and 2x (2.5…10 mm²).