Schneider Electric 2NR500 Current Transformer

Schneider Electric’s Square D 2NR500 current transformer is a window-type current transformer with a 50:5 ratio for metering and protection in power‑distribution equipment. It features a 1‑1/8 inch inside‑diameter window for in‑line conductor measurement and is rated for up to 600 V AC with a frequency range of 50–400 Hz. This UL‑recognized device provides 50 A primary to 5 A secondary, with a burden of about 1 VA at 60 Hz (2 VA at 400 Hz) and a weight around 0.5 lb, making it suitable for auxiliary metering, relays, and instrumentation in panelboards, switchgear, and MCCs. The 2NR500 is part of Schneider Electric’s Square D current transformer family and is designed for reliable, compact monitoring of conductor currents in industrial and commercial electrical systems.