Schneider Electric 74R-151-001 Current Transformer

Schneider Electric's Square D 74R-151-001 is a toroidal current transformer (CT) designed to be clamped around a single conductor for accurate AC current sensing in electrical panels, metering assemblies, and control circuits. It provides a 150:1 turns ratio, so a 150 A primary yields 1 A in the secondary, and it is rated for system voltages up to 600 V with an operating frequency range of 50–400 Hz. The 74R series CTs are compact, through-the-conductor units used for measurement and monitoring in industrial and commercial distributions. This model’s 600 V rating and 50–400 Hz suitability align with common Schneider Electric instrumentation and metering applications in Square D installations.