Specifications General Product Name: AC Power Contactor Model / Part Number: 1SFL451001R8411 Series: A110 (A‑Series) Type: 3‑Pole Contactor Application: Motor control, power switching, distribution panels Mounting: DIN‑rail or panel mount compatible Auxiliary Contacts: 1 NO + 1 NC Control / Coil Rated Control Voltage: 110 V AC (50 Hz) / 110–120 V AC (60 Hz) Coil Type: AC coil for direct control supply Main Circuit Ratings Rated Operational Voltage: Up to 1000 V AC (main circuit) Rated Operational Current: AC‑1: 160 A AC‑3: 110 A (at 400 V) Inductive Load Current: 110 A Rated Power (AC‑3): ~55 kW @ 400 V AC ~30 kW @ 230 V AC ~75 kW @ 690 V AC Rated Breaking Capacity: 8 × Ie (AC‑3) Rated Making Capacity: 10 × Ie (AC‑3) Rated Insulation Voltage (Ui): ~1000 V AC Rated Impulse Withstand Voltage (Uimp): ~8 kV Contact Configuration Main Contacts: 3 normally open (3 NO) Auxiliary Contacts: 1 normally open + 1 normally closed Performance Mechanical Endurance: High cycle life for frequent operation Switching Frequency: AC‑1: ~300 cycles/hour AC‑3/AC‑4: ~150–300 cycles/hour Mechanical: ~3600 cycles/hour Short‑Time Withstand Current: ~800 A (10 s) ~350 A (1 min) Mechanical & Physical Number of Poles: 3 Connection Type: Cable clamp terminals Weight: ~2.0 kg Compact Block Design: Suitable for modular motor control assemblies Environmental Operating Temperature: –40 °C to +70 °C Storage Temperature: –60 °C to +80 °C Maximum Operating Altitude: Up to ~3000 m Standards & Compliance Complies with IEC/EN standards for contactors and motor starters Suitable for industrial power control applications Typical Applications Motor starters in industrial control panels Power distribution switching HVAC and pump control systems Bypass and isolation switching Integration with overload relay and automation logic