Motor protection circuit breaker for panel integration
It combines a contactor and thermal-magnetic overload relay in one compact unit, sized at 45 mm wide and 97 mm deep for DIN-rail panels. Ground fault detection is not included — if that's required, an external ground-fault relay or a different variant is needed.
Any mounting position allowed. Clearance requirements: 50 mm upwards and downwards, 30 mm at the side, 0 mm forwards and backwards — so it can sit flush against the back panel, but leave breathing space above and below for arc chute venting. Main contact terminals accept 2×(0.5...1.5 mm²) or 2×(0.75...2.5 mm²) solid or stranded wire, screw type M3. For a typical 1.5 mm² motor feed, that's two wires per terminal — useful for daisy-chaining control power or looping through auxiliary contacts.
Breaking capacity and short-circuit coordination
The 3RV2011-1FA15-ZW97 delivers 100 kA at 400 V and 500 V, dropping to 4 kA at 690 V. Compare this to the 3RV2021-1FA15, which is a physically larger frame (wider) with higher continuous current ratings — the 3RV2011-1FA15-ZW97 fits where panel space is tight but fault levels are still high. At 480 V and 600 V the rated current is 5 A, so this variant is sized for smaller motor loads up to about 0.5 hp at 230 V.