This series of products is suitable for AC 50/60 Hz, 380V and below the TN-S, TN-CS, TT, IT and other power supply system is based on IEC standard design standard 35mm rail installation, the product temperature control circuit technology, built-in (F) This series of products are suitable for low-voltage BCD lightning protection of buildings, usually installed in the low-voltage lightning protection devices, Floor distribution box, count···