Switch Fuses,Front Operated,3-pole,12 (Between the Poles),Class J,30 A,Handle and shaft included, Technical Rated Operational Current AC-21A (Ie): (500 V) 30 A (690 V) 30 A Rated Operational Current AC-22A (Ie): (500 V) 30 A (690 V) 30 A Rated Operational Current AC-23A (Ie): (500 V) 30 A (690 V) 30 A Rated Operational Power AC-23A (Pe): (220 ... 240 V) 7.5 kW (400 V) 15 kW (415 V) 15 kW (500 V) 18.5 kW (690 V) 22 kW Conventional Free-air Thermal Current (Ith): T = 40 °C 32 A Conventional Thermal Current (Ithe): Fully Enclosed 32 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 1 kiloampere rms Rated Conditional Short-Circuit Current (Inc): (690 V) 80 kA Power Loss: at Rated Operating Conditions per Pole 3.5 W Pollution Degree: 3 Handle Type: Pistol handle and shaft included Switches Operating Mechanism: 12 (Between the Poles) Position of Line Terminals: Top In - Bottom Out, Bottom In - Top Out Fuse Size: 30 A Fuse System: Class J Operating Mode: Front Operated Standards: UL98 IEC 60947-3 Mounting Type: Base mounting Number of Poles: 3 Cable Cross-Section: 2.5 ... 25 mm² Terminal Type: Screw Terminals Rated Current (In): Main Circuit 30 A