Switch Fuses,Front Operated,3-pole,03 (Left Side),Class J,400 A,Handle and shaft not included, Technical Rated Operational Current AC-21A (Ie): (500 V) 400 A (690 V) 400 A Rated Operational Current AC-22A (Ie): (380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A Rated Operational Current AC-23A (Ie): (380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A Rated Operational Power AC-23A (Pe): (220 ... 240 V) 132 kW (400 V) 220 kW (415 V) 230 kW (500 V) 280 kW (690 V) 400 kW Conventional Free-air Thermal Current (Ith): T = 40 °C 400 A Conventional Thermal Current (Ithe): Fully Enclosed 400 A Rated Impulse Withstand Voltage (Uimp): 12 kV Rated Insulation Voltage (Ui): 1000 V Rated Operational Voltage: Main Circuit 690 V AC Rated Short-time Withstand Current Low Voltage (Icw): for 1 s 14 kiloampere rms Rated Conditional Short-Circuit Current (Inc): (690 V) 80 kA Power Loss: at Rated Operating Conditions per Pole 45 W Pollution Degree: 3 Handle Type: Handle and shaft not included Switches Operating Mechanism: 03 (Left Side) Position of Line Terminals: Top In - Bottom Out, Bottom In - Top Out Fuse Size: 400 A Fuse System: Class J Operating Mode: Front Operated Standards: UL98 IEC 60947-3 Mounting Type: Base mounting Number of Poles: 3 Terminal Type: Lug terminals Terminal Width: 25 mm Tightening Torque: 30 ... 44 N·m Rated Current (In): Main Circuit 400 A