Schneider Electric 100R-601 Current Transformer

Schneider Electric's Square D 100R-601 current transformer is a toroidal CT with a 600:5 ratio, designed to sense high primary currents and deliver a safe 5 A secondary signal for protection relays and metering. With insulation rated to 600 V, it suits indoor power-distribution gear, panels, and switchgear where compact size and reliable current measurement are required. The device carries a primary current up to 600 A and translates that to a standardized 5 A output, enabling accurate data feeding to protective relays, energy meters, and control instrumentation that accept a 5 A input. As part of Schneider Electric's Square D instrument-transformer lineup, the 100R-601 is commonly deployed in conjunction with Square D relays and metering equipment to monitor load, detect faults, and provide precise current information for system supervision and automation.