Technical Specifications Specification Typical Value Manufacturer ABB Model / Part Number AF305‑30 Product Type 3‑Phase Power Contactor Series AF305 Main Contacts 3 normally‑open (3NO) Auxiliary Contacts Configurations vary by variant (e.g., 1NO+1NC, 2NO+2NC available) Rated Operational Current AC‑3 ~305 A at 380‑415 V AC three‑phase Rated Operational Current AC‑1 ~500 A at 690 V AC Motor Control (AC‑3 Power) Up to ~160 kW at 400 V AC three‑phase Rated Operational Voltage, Main Circuit Up to 1000 V IEC / 600 V UL Control Coil Voltage Range (Uc) Typically 100‑250 V AC/DC (wide coil range available) Control Voltage Frequency 50/60 Hz and DC operation supported Coil Type Magnetic electronic coil with built‑in surge suppression Insulation Voltage (Ui) ~1000 V (IEC) Impulse Withstand Voltage (Uimp) ~8 kV Mechanical Durability ~5,000,000 operations Electrical Switching Frequency ~300 cycles/hour (AC‑3 rated) Mounting Panel or control cabinet mounting Terminal Type Screw / box lug depending on variant Operating Temperature Range ~‑40 °C to +70 °C Protection Class Main terminals typically IP00; coil terminals IP20 Application Motor starting, power switching, industrial automation