Coil and Control Circuit
The 3RT2017-1BW44-3MA0: The coil is rated at 48 V DC with an operating range factor of 0.8 to 1.1 times the rated value, so it picks up reliably down to roughly 38.4 V and holds in up to 52.8 V. Closing time on DC is 7 to 13 ms, with an arcing time of 10 to 15 ms — useful for timing coordination in sequential start circuits. The coil connection uses screw-type terminals, which is the standard for panel wiring with ferruled or solid conductors.
Switching Capacity and Duty Cycles
For DC-13 duty (solenoid loads), the contactor is rated at 6 A at 24 V, 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. At 230 V AC, it is rated for 2 hp motor load. Maximum mechanical service life is 10 million operations. Switching frequency limits are 1000 cycles per hour for AC-1 (resistive), 750 per hour for AC-2 and AC-3 (motor start/run), and 250 per hour for AC-4 (plugging/inching). These duty-cycle figures govern the real-world thermal rise in the enclosure — a panel builder should derate if multiple contactors are ganged without spacing.
Mounting and Clearance
Mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715. The mounting position allows +/-180° rotation on a vertical surface and can be tilted forward/backward by +/-22.5°. Required clearances for arc and heat dissipation: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. The size S00 footprint is 45 mm wide, 58 mm high, and 117 mm deep — a compact profile that fits standard 600 mm deep enclosures with room for gland plates and wiring ducts.
Wiring and Termination
Main contacts accept solid or stranded conductors from 0.5 to 4 mm², or two conductors per terminal: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The screw terminals are rated for the full current range of the size S00 frame. No auxiliary switch is integrated on this variant — if auxiliary contacts are needed for feedback or interlocking, a separate side-mount block must be added.
Environmental and Compliance
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The contactor is part of the SIRIUS family, which carries CE, UL, CSA, and other international approvals as standard for the series. For compliance documentation (RoHS, REACH, UL, IEC), the manufacturer provides declarations and certificates per the specific order code — these are typically included with the shipment or available via the product support portal.