Overview Reviews Product Description Energy Control 270-45U-0400/5 Current Transformer Ratio: 400/5 Class 05-1-3 5-10-15VA 072kV. Product Videos Custom Field Ratio 400:5 Product Reviews Write a Review Write a Review × Energy Control Energy Control 270-45U-0400/5 Current Transformer Ratio: 400/5 Class 0.5-1-3 5-10-15VA 0.72kV Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *