Its AC-3 rating drives the selection: 18.5 kW at 500 V and 10 kW at 690 V, meaning it handles standard three-phase induction motors up to those power levels in the most common switching duty (starting, running, stopping under load). For AC-2 duty (slip-ring motors, moderate loads) it delivers 15 kW at 400 V. The auxiliary contact block is rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — enough for PLC-level signal switching or holding a contactor coil in the same panel.
Panel fit and wiring constraints
At 55 mm wide, 112 mm tall, and 115 mm deep, this S2 contactor occupies a standard four-module-wide DIN-rail footprint. The terminal IP00 rating means the connection points are exposed; the front face carries IP20, so finger-safe once wired. That covers unheated warehouses and hot cabinet interiors near drives or transformers.
Electrical life depends on duty: AC-1 (resistive) allows 1,200 operations per hour, AC-3 (motor start/run) allows 1,000 per hour, and AC-4 (plugging, inching) drops to 250 per hour. Coil operates on 50 Hz at 24 V (0.8 to 1.1 x rated voltage) and 60 Hz at 24 V (0.85 to 1.1 x rated voltage). The ZW96 suffix indicates a special variant — confirm coil voltage and auxiliary configuration against your BOM before committing.