Technical Specifications General / Mechanical Contactor type: 3-pole power contactor (non-reversing IEC type) Main contacts: 3 normally-open (NO), 0 normally-closed (NC) Auxiliary contacts: 1 NO + 1 NC (standard) Mounting type: Fixed block-type contactor Application: Motor control, power distribution, isolation, bypass, heavy-load switching Coil / Control Circuit Rated control (coil) voltage: 100–250 V AC (50/60 Hz) or 100–250 V DC Coil type: Electronic wide-range coil (AC/DC) with built-in surge protection Coil operating range: 0.85 × Uc to 1.1 × Uc (at ambient ≤ 70 °C) Main Circuit Ratings Rated operational voltage (Ue): Up to 1000 V AC Conventional free-air thermal current (Ith): 2050 A (at 40 °C) Insulation voltage (Ui): 1000 V (IEC standard) Impulse withstand voltage (Uimp): 8 kV Current & Power Ratings Utilization Type Rating AC-1 (resistive/general load) 2050 A @ 1000 V, 40 °C 1750 A @ 1000 V, 55 °C 1500 A @ 1000 V, 70 °C 2050 A @ 690 V, 40 °C / 1750 A @ 55 °C / 1500 A @ 70 °C AC-3 (motor duty) 1060 A @ 220–415 V (typical 55 °C) 970 A @ 500–690 V (55 °C) 425 A @ 1000 V (55 °C) Rated motor power (AC-3) ~630 kW @ 415 V, ~710 kW @ 440 V, ~1000 kW @ 690 V, ~630 kW @ 1000 V Withstand & Making Capacity Short-time withstand current (Icw), cold start, at 40 °C: 10 s → 10 000 A 1 s → 12 000 A 30 s → 7 500 A 15 min → 2 200 A Making capacity for AC-3: up to 10 × Ie (i.e. up to ten times the rated motor current) under appropriate conditions Electrical / Mechanical Performance Coil consumption: holding coil ~48 VA (AC), pull-in ~2450 VA (AC) / ~2290 VA (DC) Electrical switching frequency (AC-1): max 60 cycles/hour Mechanical switching frequency: max 300 cycles/hour Mechanical durability: ~500,000 operations Terminal connection capacity (main circuit): up to bar 100 mm² Terminal connection capacity (auxiliary circuit): flexible 2 × 0.75–2.5 mm² or solid 2 × 1–4 mm² wire Environment & Ambient Conditions Operating ambient temperature (with thermal overload relay): −25 … +50 °C Without thermal overload relay: −40 … +70 °C Storage temperature: −40 … +70 °C Maximum permissible installation altitude: 3000 m Degree of protection: Coil terminals IP20, Main terminals (when open) IP00 Design / Features Wide-range electronic coil requiring no coil change for different control voltages (AC or DC) Built-in surge protection — tolerant of voltage dips and unstable supply Modular — supports auxiliary contact blocks and various accessories Robust block-type design suitable for industrial switchgear, generators, large motors