Overview Reviews Product Description Westinghouse 254A478G02 Potential Transformer 0004KVA Primary: 288 Secondary: 120. Product Videos Custom Field Primary 288 Secondary 120 KVA 4 Product Reviews Write a Review Write a Review × Westinghouse Westinghouse 254A478G02 Potential Transformer 4KVA Primary: 288 Secondary: 120 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *