Challenger electrical equipment corporation drive isolation transformer. 51 KVA. Catalog number: 512-RQ3 ISO-102046. Voltage: 230^-230Y/133 Model: 4
3 Phase 60 Hz. Weight: 350 lbs. 220 degrees Celsius insulation system. Impedance: 5.40% at 170 degrees Celsius. S/N: 29-4/90-238605
Enc: Indoor type 2, or rainproof type 3R with hood: WS-03
