Schneider Electric 2NR-651-001 Current Transformer

Schneider Electric's Square D 2NR-651-001 current transformer is an instrument transformer designed to sense high AC currents and provide a low, safe secondary signal for metering and protection relays. It supports a primary rating of 325 A and a secondary rating of 0.5 A (ratio 325:0.5), enabling accurate current measurement while feeding standard relay or metering inputs. Rated for system voltages up to 600 V, it carries an insulation rating of 10 kV, making it suitable for installation in typical industrial switchgear and panelboard assemblies. The part number 2NR-651-001 is part of Schneider Electric’s Square D line, allowing straightforward cross-reference with compatible protection relays and metering equipment. When selecting this transformer, ensure the burden and accuracy requirements of the receiving device align with the CT's output and verify that the unit's form factor and mounting approach fit your enclosure and installation constraints. This current transformer is intended for general purpose current sensing in electrical distribution applications where a 0.5 A secondary is preferred for wiring convenience and compatibility with measuring devices.