R911309354 is part of the PST Thyristor Power Units Series by Indramat Power Supplies.
Design: 2-phase Feature: Integrated Weld Timer Additional: Quality Module Slot for Retrofitting Protection Category: IP 20 Mounting Requirement: IP 54 Protection Class Installation Altitude: 2000 Meters Maximum Relative Humidity: 90% Maximum, 50% at 20 and 40 Degrees Ambient Storage Temperature: -25 to 70 Degrees Operating Temperature: 55 Degrees Nominal System Current: 200 A Line Voltage Connection: 400 V to 600 V Clock Frequency: 50/60 Hz Weight: 12.5 Kg Wire Range: 95mm2 Overload Protection: Metal Oxide Varistor Mounting Orientation: Vertical or Plate-Mounted Temperature Switch: Thermostatic Switch at 80 Degrees.