Key Specifications (English) General Manufacturer: ABB Model / Part Number: AX150‑30‑11‑85 / 1SFL991074R8511 Product Type: 3‑Phase AC Power Contactor Series: AX Series Main Circuit Number of Main Contacts (NO): 3 Number of Main Contacts (NC): 0 Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC) Rated Operational Voltage (Main Circuit): Up to 1000 V AC (IEC) Rated Frequency: 50 Hz / 60 Hz Conventional Free‑air Thermal Current (Ith): ~190 A @ 40 °C Rated Operational Current (AC‑1, Ie): • ~190 A @ 690 V AC (40 °C) • ~145 A @ 690 V AC (55 °C) • ~130 A @ 690 V AC (70 °C) Rated Operational Current (AC‑3, Ie): • ~150 A @ 380/400 V AC (55 °C) • ~100 A @ 440–500 V AC (55 °C) • ~82 A @ 690 V AC (55 °C) Rated Operational Power (AC‑3): • ~75 kW @ 380/400 V AC • ~59 kW @ 440–500 V AC • ~75 kW @ 690 V AC Rated Breaking Capacity (AC‑3): 8 × Ie Rated Making Capacity (AC‑3): 10 × Ie Control / Coil Rated Control Circuit Voltage (Uc): Typically 380 … 400 V AC @ 50 Hz (also suitable for 400 … 415 V AC @ 60 Hz) — designed to match typical industrial supply voltages around 380 V AC. Performance & Durability Rated Insulation Voltage (Ui): ~690 V (IEC) Rated Impulse Withstand Voltage (Uimp): ~8 kV Maximum Electrical Switching Frequency: ~300 cycles/hour Mechanical Durability: ~10 million operations Maximum Mechanical Switching Frequency: ~3600 cycles/hour Short‑time Withstand Current (Icw): • ~1320 A @ 1 s • ~800 A @ 10 s • ~350 A @ 1 min • ~160 A @ 15 min Mechanical & Environmental Main Circuit Terminals: Heavy‑duty bar connections Ambient Operating Temperature: ~‑40 °C to +70 °C (depending on installation conditions) Protection Class: Auxiliary terminals commonly IP40 Typical Uses 3‑phase motor control and switching Industrial power distribution Load isolation and control in automation systems Control panels and machinery requiring high current switching