Split current transformer to be used exclusively with the ECT Electrex series such as the Femto D4 ECT (up to 400A), the Atto D4 ECT, the Femto ECT net, the Libra ECT and the Lyra ECT net. Plastic shell. Equipped with a snap-on and screw-free closing system. Internal window diameter 35.9 mm. Accuracy class 0.5S. Protection on secondary circuit opening. The high accuracy, even at low currents / powers, allows its use also for the management of Power Quality.