SIRIUS 3RT2317-1BA40 — What This Contactor Handles
The 3RT2317-1BA40 is a Siemens SIRIUS contactor in frame size S00, rated 5.5 kW at 400 V in AC-3 duty (cage-induction motor switching) and 4 kW at 400 V in AC-4 duty (plugging/inching). Its AC-1 thermal current at 400 V is 12 A — the continuous current the main contacts carry in resistive or lightly inductive loads without exceeding the temperature rise limit. Mechanical endurance is rated at 30,000,000 operating cycles typical — the contactor's mechanical life before wear-out, not the electrical life under load. The coil is DC-operated with screw-type terminals, and the main current circuit also uses screw-type terminals — a field-serviceable termination that accepts solid or stranded wire up to 4 mm².
Mounting and Integration — DIN Rail and Clearance
Fastens by screw and snap-on onto 35 mm DIN rail per DIN EN 60715 — the snap-on feature allows tool-less installation and removal for panel rework. Mounting position is flexible: +/-180° rotation on a vertical surface, and can be tilted forward/backward by +/-22.5° on a vertical surface — this covers most panel layouts without derating. Side-by-side mounting is permitted, with a required clearance of 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side — plan these gaps for heat dissipation and arc-fault containment. Dimensions are 45 mm wide, 58 mm high, and 73 mm deep — the S00 frame keeps panel density high without crowding adjacent components.
Environmental and Compliance — Operating Range and Substance Restrictions
Operates in ambient temperatures from -25 °C to +60 °C, with storage from -55 °C to +80 °C — suitable for unheated enclosures in temperate climates. Relative humidity minimum is 10 % — no condensation limit stated, but the screw terminals and sealed coil handle typical panel humidity without issue. Rated impulse withstand voltage for both main and auxiliary circuits is 6 kV — this defines the clearance and creepage distances for coordination with upstream surge protection.