Siemens SIRIUS 3RT2017-1BB42-ZW97 — Size S00 Power Contactor, 24 VDC Coil
The Siemens SIRIUS 3RT2017-1BB42-ZW97 is a size S00 power contactor with a 24 VDC magnet coil and screw-type terminals, designed for switching motor loads and resistive loads in industrial control panels. It carries a 3-pole main contact configuration (20...12) and an integrated auxiliary switch, so you get feedback or interlock capability without adding a separate block. Mounting is via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward/backward — useful when panel layout is tight.
Ratings and What They Mean for Fit
The 24 VDC coil is rated at 10 A at 24 V rated value for the auxiliary contacts, dropping to 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V — so the auxiliary circuit's voltage determines its switching capacity, not the main contact rating. Main contact switching frequency varies by duty: up to 1,000 operations per hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor starting/running), 250/h at AC-4 (plugging/inching), and 750/h at AC-3e (enhanced motor). That means for a conveyor running continuous AC-3 duty, you get 750 cycles per hour — enough for most material-handling lines. Mechanical endurance is rated at 30,000,000 operations typical — the contactor itself will outlast most applications if the electrical load is within the switching curve. At 230 V rated value, the contactor is listed for 2 hp motor load — a direct fit for fractional-horsepower pumps or fans on 230 V single-phase or three-phase systems.
Integration and Wiring
Terminals accept solid or stranded wire: 0.5...4 mm² for single conductors, and 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or 2x 4 mm² for two conductors per clamp — so you can daisy-chain control wiring without extra terminal blocks. Dimensions are 45 mm wide, 58 mm high, 73 mm deep — a compact S00 footprint that fits standard 45 mm-wide DIN-rail slots, leaving room for adjacent devices in a crowded panel. Required clearances: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side — plan your enclosure layout so that arcing and heat dissipation are not compromised. Arcing time is 10...15 ms, and DC operating time (coil pickup/dropout) is 7...13 ms — fast enough for most PLC-driven sequences, but verify your cycle timing if you're coordinating with safety relays that expect <20 ms response.
Environmental and Lifecycle
Operating temperature range is -25 to +60 °C, storage range is -55 to +80 °C — suitable for unheated plant floors and warehouse storage, but not for direct oven or freezer placement. Lifecycle stage is marked as current production — this is an active catalog item, not a phase-out or NRND part, so you can plan BOM continuity without an imminent last-time-buy.