Ring Type Current Transformer 10/5A upto 300/5A, 35MM Diameter, 0.66kV Max Voltage

A ring-type current transformer (CT), or window-type CT, measures high alternating currents by stepping them down to a safer, predictable level (typically a 5A secondary output). Designed with a hollow center, the primary high-current conductor slides directly through the ring window, operating without any direct physical or electrical connection to the primary circuit.