Profile: Electronetics specializes in frequency power transformers of 50 Hz, 60 Hz and 400 Hz. Our product line includes power transformers, high frequency magnetics , sensors and SMT & planar magnets. Our line-line isolation power transformers is typically 60 Hz or 50 Hz running from a wall socket or from commercial AC. It is commonly listed as a voltage rating for shock safety. Our current sensing transformers have high current through the primary and deliver an exact replica to the secondary at a lower current.