Technical Specifications Specification Value / Description Poles / Contacts 3‑pole, 3 main contacts (NO), auxiliary contacts: 1 NO + 1 NC Main Circuit Rated Operational Voltage (Ue) up to 1000 V AC Conventional Free‑air Thermal Current (Ith) 2650 A @ 40 °C (open contactor) Rated Operational Current AC‑1 (Ie, general/resistive load) 2650 A @ 40 °C (1000 V or 690 V); 2350 A @ 55 °C; 2120 A @ 70 °C Rated Making Capacity (AC‑3, motor or inductive load) up to 10 × Ie AC‑3 Short‑time Withstand / Breaking Capacity e.g. 10 s → 10,000 A (cold), 30 s → 7,500 A; 1 min → 5,500 A; 15 min → 2,200–2,800 A Rated Insulation Voltage (Ui) 1000 V (IEC 60947‑4‑1 / UL/CSA) Impulse Withstand Voltage (Uimp) 8 kV (main circuit) Coil / Control Circuit Voltage (Uc) 100–250 V AC (50/60 Hz) or 100–250 V DC (wide‑range coil) Coil Characteristics Electronic wide‑range coil, built-in surge suppression, tolerant to voltage dips/sags Mechanical and Physical 3‑pole block contactor, bar‑type main terminals, auxiliary screw terminals; net weight ~ 41–43 kg; dimensions approximately 438 mm (W) × 244 mm (D) × 422 mm (H) Utilization / Application High‑power motor control, power distribution, isolation, bypass, heavy industrial loads up to 1000 V AC