Key Specifications General / Construction Manufacturer: ABB Model / Part Number: A50‑30‑11 / 1SBL351001R8011 Product Type: 3‑Phase AC Power Contactor Series: A50 series block contactors Poles: 3 main poles (3NO) Auxiliary Contacts Built‑in: 1 Normally Open (NO) 1 Normally Closed (NC) Control Type: AC coil magnetic contactor Connection Type: Screw terminals Coil / Control Circuit Rated Control Coil Voltage (Uc): 220–230 V AC @ 50 Hz 230–240 V AC @ 60 Hz Main Circuit Ratings Rated Operational Current (AC‑3, Ie) @ 50 °C: ~50 A @ 380/400 V AC ~50–53 A @ 220–240 V AC ~45 A @ 440–500 V AC ~35 A @ 690 V AC ~23 A @ 1000 V AC Rated Operational Power (AC‑3): ~15 kW @ 220–240 V AC ~22 kW @ 380/400 V AC ~25–30 kW @ 440–500 V AC ~30 kW @ 690 V AC ~30 kW @ 1000 V AC Rated Operational Current (AC‑1, Ie): ~100 A @ 400 V AC UL/CSA General Use Rating: ~80 A @ 600 V AC Horsepower Ratings (UL/CSA): ~20 hp @ 220–240 V AC (3‑phase) ~40 hp @ 440–480 V AC (3‑phase) ~50 hp @ 550–600 V AC (3‑phase) Performance & Switching Rated Breaking Capacity (AC‑3): 8 × Ie Rated Making Capacity (AC‑3): 10 × Ie Maximum Electrical Switching Frequency: See contactor series typical industrial rates Operate / Release Times: Typical instant electromagnetic response suitable for AC control Mechanical / Environmental Impulse Withstand Voltage (Uimp): ~8 kV Mechanical Durability: Up to 10 million operations Maximum Mechanical Switching Frequency: ~3600 operations/hour Rated Insulation Voltage (Ui): ~690 V Protection Class: IP20 on enclosure/terminals Operating Temperature Range: approx. −25 °C to +60 °C (ambient) Storage Temperature Range: approx. −40 °C to +80 °C