Surge arrester PV 3P (T1+T2 DC) BY7-40 1000VDC 87.740

The BY7-40 overvoltage limiter cat. No. 87.740, its main task is to protect photovoltaic installations, protect PV modules against switching overvoltages and lightning strikes. The limiter is adapted for mounting on a TH35 rail, it is 54 mm wide (size of 3 18mm modules). The main technical parameters confirmed by the CE declaration are: Iimp: 5kA, Imax: 40kA, In: 20kA, Uc: 1000VDC, Up: 3.5kV.