What it is and what it does
The Siemens SIRIUS 3RT2017-2BB42-0CC0 is a size S00 power contactor with a 24 V DC coil, spring-type terminals, and an integrated auxiliary switch. It is designed for switching motor loads and resistive loads in industrial control panels, with a rated operational current of 10 A at 24 V DC for the main contacts.
Key ratings and what they mean for fit
The contactor is rated for a mechanical life of 30 million operations, which indicates a long service interval in high-cycle applications. The switching frequency varies by duty: up to 1000 cycles per hour at AC-1 (resistive), 750 at AC-2 and AC-3 (motor starting/running), and 250 at AC-4 (plugging/inching). For DC switching, the contactor is rated at 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V — this is the curve that governs DC load compatibility, not the AC rating.
Mounting and integration
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward. Clearance distances: 10 mm upwards, downwards, and forwards; 6 mm at the side. Dimensions are 45 mm wide, 70 mm high, and 73 mm deep — a compact footprint that fits standard panel layouts.
Environmental and wiring specs
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The coil operates at 24 V DC with an operating range factor of 0.8 to 1.1 times rated voltage. Wire sizes accepted: solid or stranded 0.5 to 4 mm² (single or 2x). Arcing time is 10 to 15 ms.