Technical Specifications General / Mechanical Contactor type: 3-pole power contactor, block (non-reversing IEC/UL) Main contacts: 3 × normally-open (NO) Auxiliary contacts: 1 NO + 1 NC auxiliary contact Frame size: AF1350 Main-circuit termination: bar / screw-terminal (bus-bar capable) Typical dimensions: approx. 438 mm (W) × 392 mm (H) × 244 mm (D) Typical weight: ~ 32 kg Coil / Control Circuit Rated control (coil) voltage (Uc): 100–250 V AC (50/60 Hz) or 100–250 V DC Coil type: Electronic wide-range AF coil, capable of handling significant control-voltage variation Built-in surge protection; tolerant of voltage dips/sags Coil consumption (at max control voltage): holding ~48 VA (AC 50/60 Hz), ~20.5 VA (DC) Main Circuit Ratings Rated operational (main circuit) voltage (Ue): up to 1000 V AC Rated insulation voltage (Ui): 1000 V (IEC) Conventional free-air thermal current (Ith): 1350 A (at 40 °C) Current & Power Ratings AC-1 (general / resistive loads) Ie (1000 V, 40 °C): 1350 A Ie (1000 V, 55 °C): 1150 A Ie (1000 V, 70 °C): 1000 A Ie (690 V, 40 °C): 1350 A Ie (690 V, 55 °C): 1150 A Ie (690 V, 70 °C): 1000 A AC-3 (motor duty / inductive loads) Ie (220 / 230 / 240 V, 55 °C): 860 A Ie (380 / 400 V, 55 °C): 860 A Ie (415 V, 55 °C): 860 A Ie (440 V, 55 °C): 860 A Ie (500 V, 55 °C): 800 A Ie (690 V, 55 °C): 800 A Typical rated motor power (AC-3): ~ 475 kW @ 400 V; up to ~ 800 kW at 690 V Operational Performance / Electrical Endurance Maximum electrical switching frequency (AC-1 / AC-2 / AC-4 / AC-3): 60 cycles/hour Making capacity (AC-3): up to 10 × Ie Short-time withstand current (Icw), cold state, 40 °C ambient: 10 s → 8,000 A; 30 s → 6,000 A; 1 min → ~4,500 A (varies by datasheet) Insulation withstand (impulse): main circuit 8 kV Terminal protection: coil terminals IP20; main terminals (open) IP00 Environment & Operating Conditions Ambient temperature (with thermal overload relay): –25°C … +50°C Ambient temperature (without thermal overload relay): –40°C … +70°C Storage temperature: –40°C … +70°C Permissible installation altitude: up to 3000 m above sea level Features / Design Highlights Wide-range control coil (100–250 V AC/DC) — no need for different coil versions for different control voltages Built-in surge protection — tolerant to supply voltage fluctuations, dips or sags Block-type modular design — allows add-on auxiliary contacts and accessories Heavy-duty main contacts and bus-bar capable terminations for high current, high-power circuits Compatible for motor starting, heavy load switching, power distribution, isolation, bypass etc.