Overview Reviews Product Description WICC Ltd 652F-1640-01-T Current Transformer Ratio: 1640:1A 50-400Hz. Product Videos Custom Field Ratio 1640:1 Product Reviews Write a Review Write a Review × WICC Ltd 652F-1640-01-T Current Transformer Ratio: 1640:1A 50-400Hz Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *