The transformer is designed to convert alternating voltage from one voltage level to another. Transformers are completely static devices without continuously moving mechanical parts, which, by electromagnetic induction, transform electrical energy from one or more circuits to one or more other circuits at the same frequency. The solid core current transformer is an ideal choice for permanent installations and new wiring. This listing is for each. Product Specification Brand Schneider Electric Catalog Description Schneider Electric, 400 AMP HDM SOLID CORE CT 1.56 WINDOW Item Status A Mfr. # HDMCT400S1