R911170257 is part of the PSI Frequency Inverters Series by Indramat Power Supplies.
Design: Air-cooled Fan Cowl: Yes Operating Frequency: High Effect on Welding Transformer: Reduces load Welding Quality: Enhanced Thermostatic Switch: Yes Control Facility: Integrated Interfaces: Parallel, Serial, Fieldbus Operator Interface: BOS-5000 built-in Weld Timer: Built in CPU Current Output: 800 A Line Voltage: 400-480 V Overvoltage Protection: MOV (Metal oxide varistor) integrated Weight: 20 kg Mounting Position: Vertical