The 3RT1046-3AD00: The AC-3 rating at 500 V (55 kW) governs the contactor's capacity for starting squirrel-cage motors — the load it can switch under normal running conditions.
Terminal wiring and environmental range
Main circuit terminals accept solid conductors 2x (0.25 to 2.5 mm²) or stranded 2x (10 to 50 mm²), with an intermediate range of 2x (2.5 to 16 mm²) for either solid or stranded. The auxiliary contacts are rated 10 A at 24 V, 6 A at 230 V, and 0.3 A at 220 V DC — check the DC switching curve if your control circuit runs on 110 V DC (1 A rated) or 60 V DC (2 A). Operating temperature spans -25 to +60 °C, storage from -55 to +80 °C, with pollution degree 3 (conductive pollution or dry non-conductive that becomes conductive).