Schneider Electric's Square D 5NR251 current transformer provides a 250:5 ratio with a 1-9/16 inch inside-diameter window for use in 600 V AC systems. The unit supports up to 250 A on the primary and yields a 5 A secondary output, enabling accurate current measurement for metering, panel instrumentation, and protection relays. Designed for installation in electrical distribution panels or switchgear, it offers a compact form factor within the Square D CT lineup.
