The Siemens 3RV2011-1KA10-ZW97 is a SIRIUS motor protection circuit breaker, designed for motor protection with Trip Class 10 — meaning it trips within 10 seconds at 7.2× the thermal setting, fast enough to protect standard induction motors from locked-rotor heat buildup without nuisance tripping on normal starts. Rated breaking capacity hits 100 kA at 400 V and 480 V, 42 kA at 500 V, and 4 kA at 690 V, so it handles high-fault-current panels without cascading upstream — a key spec for SCCR compliance in industrial control panels.
Terminals and wiring
Main circuit uses screw-type terminals accepting 2×(0.75–2.5 mm²) or 2×4 mm² solid/stranded — common for motor branch circuits up to the rated current. Main contact screws are M3, standard for this class; no special tooling needed.