Westinghouse, UP-5 Current Transformer, Ratio 2000:5A, Rated Insulation Class 5 kV, Standard Ambient 55C RF 30 = 1.33, Full Wave Impulse Test Level 60 kV: 60 Cycle 1 Minute Test 19, 25-60Hz, Bar Type, Cat# 1575636
1575636 Current Transformer by Eaton, Cutler-Hammer or Westinghouse