| Öğe açıklaması | Overvoltage protection / economic overvoltage protection type TYPU 1+2+3 (b+c+d) according to EN 61643-11:2012 / po i 1+1 e 280V/7KA is designed to balance the lightning strike potential and is installed on the line inlet to the main switchboard. Connected TN-s/TT, 1 phase, 3 wire system (l, n and PE). It contains a replaceable VARISTOR insert and a it is also produced in a version with a remote signaling state. High diverting capability provided by power varistors mov. Mounting is on DIN rail TS35 MM. Usage as the 1ST level T1 of overvoltage protection it provides overvoltage protection for appliances installed in the main distributor in the range of T1, T2, T3 (coarse, medium and fine protection).po i 1+1 e 280V/7KA is designed to balance the lightning strike potential and is installed on the line inlet to the main switchboard. Usage as the 1ST level T1 of overvoltage protection it pro |