The Siemens 3RT1017-2AD01 is a SIRIUS power contactor in size S00, rated for 5.5 kW at 500 V and 5.5 kW at 690 V, with spring-loaded terminals for the main current circuit.
For AC-2 duty at 400 V, it handles 5.5 kW, covering wound-rotor motor applications where slip rings are switched. The contactor's coil operates at 50 Hz (0.8–1.1 x rated voltage) and 60 Hz (0.85–1.1 x rated voltage), with a rated control supply voltage of 42 V at both frequencies. Auxiliary contacts are rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — enough for most PLC or relay logic interfaces.
Spring-loaded terminals accept 2x (0.25–2.5 mm²) solid or stranded wire (24–14 AWG), reducing wiring time compared to screw clamps. It is rated for pollution degree 3 (industrial environments with conductive or dry non-conductive pollution) and operates from -25 to +60 °C, with maximum altitude 2 000 m.