The FSCT-30 is a compact waterproof split core current transformer with a 30×30 mm window, rated 10–600 A and sealed to IP67 for permanent outdoor duty. The core clamps around an insulated, live conductor — no cable cutting, no shutdown — and the winding is fully potted, so rain, humidity and daily condensation cycles never reach it. The 400 A / 200 mA (2000:1) version is the configuration most specified in North America, available in Class 0.5 or 1.0.
