What It Is and What It Does
The Siemens 3RT1017-1BB41-ZW96 is a SIRIUS power contactor in size S00, designed for switching motor loads and resistive loads in industrial control panels. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022, fitting a 45 mm wide slot. Rated for AC-3 duty at 5.5 kW on 400 V, it handles the inductive load of a standard three-phase motor up to that power. The same contactor also carries 10 A in AC-1 (resistive) service and 8.5 A in AC-4 (plugging/reversing) at 400 V. The magnet coil is rated 24 V DC, drawing 3.3 W for both closing and holding — a single-wattage coil, so the control transformer and power supply must handle the inrush. Pick-up voltage is 0.85 × rated (20.4 V DC); drop-out is 1.1 × rated (26.4 V DC).
Key Ratings and What They Mean for Fit
The AC-3 rating of 5.5 kW at 400 V is the motor-switching figure that governs most BOM fits. If your motor nameplate says 5.5 kW or less on a 400 V line, this contactor is electrically sized. At 500 V and 690 V, it also delivers 5.5 kW in AC-3. For DC switching, the contactor is rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for interposing or pilot-duty circuits, but the inductive DC load curve is steeper than AC, so derate further for DC motor or solenoid loads. Short-circuit coordination is specified: Type 2 coordination requires a gL/gG fuse of 20 A; Type 1 coordination allows 35 A. This matters for selectivity studies and SCCR compliance in the panel. Mechanical endurance is rated at 30 million operations — typical for a size S00 contactor in light-duty cycling. The one instantaneous auxiliary contact (1 NO/NC configurable) is built in, so no separate aux block is needed for basic feedback.
Where It Goes and How It Connects
Mounts on 35 mm DIN rail per EN 50022. Side-by-side mounting is permitted with 6 mm clearance at the side, which saves panel width compared to gapped mounting. The size S00 footprint (45 × 57.5 × 72 mm) is standard across the SIRIUS 3RT1 range. Main current circuit terminals are screw-type, accepting 2 × (0.5…1.5 mm²), 2 × (0.75…2.5 mm²), or max 2 × (0.75…4 mm²) solid/stranded, plus 1 × 12 AWG. IP20 on the front and terminals means it's protected against finger contact but not washdown — standard for enclosed panels. Pollution degree 3 rating means it's suitable for industrial environments with conductive pollution. Operating temperature range is -25 to +60 °C, with a maximum operating altitude of 2,000 m.
Sourcing and Lifecycle
The -ZW96 suffix indicates a special version, but the base electrical and mechanical ratings match the standard 3RT1017-1BB41. Verify the -ZW96 specifics with the order documentation if traceability to a particular project is required.