Schneider Electric 785R151 Current Transformer

Schneider Electric's Square D 785R151 is a bushing current transformer (CT) with a 150:5 ratio designed for measurement and protection in power distribution equipment. It provides a 150 A primary current and a 5 A secondary, a 30:1 nominal ratio, and is specified for 50–400 Hz operation. The unit uses a NEMA 1 enclosure and copper windings, with a screw-clamp mounting arrangement, and measures 9.88 in high by 9.88 in wide by 6.75 in deep. This CT is designed to deliver a standard 5 A signal to meters and protective relays, enabling current sensing for monitoring and protection in distribution panels and related gear, and is marketed under Schneider Electric's Square D brand as part of its instrument-transformer line.