Schneider Electric 74R-122-001 Current Transformer

Schneider Electric's Square D 74R-122-001 Current Transformer is a toroidal, single‑phase instrument transformer designed for 600 V systems, providing a 1200:5 A secondary ratio for accurate metering and protection circuits. It fits through a 2.34‑inch window opening and comes in a compact NEMA 1 enclosure suitable for indoor panelboard installations. The primary rating is 1200 A with a 5 A secondary at full load, enabling safe connection to metering instruments and protective relays without heavy conductor handling. This CT is specified for operation across a wide frequency band from 25 Hz up to 400 Hz, accommodating standard 50/60 Hz power systems and certain test or control environments. Typical applications include energy meters, power monitors, switchgear, and control panels where high‑amperage primary currents must be measured with a low‑voltage secondary signal. As a Square D by Schneider Electric device, this model offers a robust, space‑saving solution for indirect current measurement in electrical distribution systems; ensure the 1200:5 ratio and 600 V rating align with your panel’s CT input requirements and that the conductor fits within the 2.34" opening.