The Siemens SIRIUS 3RV2011-0FA20-ZW97 is a motor protection circuit breaker in size S00, designed to protect motors against overload and short-circuit. It carries a 100 kA interrupting capacity at 400 V AC, which means it can safely clear a fault up to that level without upstream devices needing to coordinate — a key spec for high-fault panels. The Class 10 trip curve ensures it disconnects before the motor windings overheat during a locked-rotor event, matching standard induction motor thermal limits.
Mounting and integration
Mounts via screw fixing or snaps onto 35 mm DIN rail per DIN EN 60715. The 45 mm width and 97 mm depth fit a standard S00 footprint — drops into a panel cavity already dimensioned for the SIRIUS 3RV2 family. Spring-loaded terminals on the main circuit accept 2x (0.5 to 4 mm²) solid or stranded conductors; no lug crimping needed for the power connections.
Protection and ratings
Phase failure detection is built in — the breaker trips on loss of one phase. Rated operating voltage spans 20 to 690 V AC.
Lifecycle and sourcing
Listed as current production. This is the standard catalog variant with the -ZW97 suffix.
