Technical Specifications General Configuration Contactor type: 3‑pole (3 main contacts, NO) Auxiliary contacts: Common configuration: 1 NO + 1 NC (or other arrangements depending on variant) Main-circuit rated operational voltage (Ue): up to 1000 V AC Insulation voltage (Ui): 1000 V (IEC) / 600 V (UL/CSA) Impulse withstand voltage (Uimp): 8 kV Control / Coil Circuit Rated control (coil) voltage (Uc): typically 100–250 V AC or DC, depending on coil variant Coil type / Features: Electronic / magnetic coil with wide‑range control-voltage tolerance; built-in surge suppression; suitable for AC or DC control Thermal / Operational Current Ratings Conventional free‑air thermal current (Ith, 40 °C): 350 A Rated operational current (AC‑1, general/resistive load): 275 A @ 1000 V, 40 °C 250 A @ 1000 V, 55 °C 200 A @ 1000 V, 70 °C At 690 V: 350 A (40 °C), 300 A (55 °C), 240 A (70 °C) Rated operational current (AC‑3, motor duty / inductive load): 205 A @ 220–240 V 165 A @ 500–690 V 100 A @ 1000 V Switching / Mechanical / Endurance Making capacity (AC‑3): up to 10 × Ie Breaking capacity (AC‑3): up to 8 × Ie Short-time withstand current (cold start, 40 °C): 1 s: 2050 A 30 s: 947 A 15 min: 350 A Electrical switching frequency: AC‑1: up to 300 cycles/hour; AC‑3: up to 300 cycles/hour; AC‑2 / AC‑4: up to 150 cycles/hour Mechanical endurance: millions of operations Environmental & Operating Conditions Ambient air temperature (with overload relay): –25 … +55 °C Ambient air temperature (without overload relay): –40 … +70 °C Storage temperature: –40 … +70 °C Maximum installation altitude without derating: 3000 m