... To be connected with incoming feeder of distribution transformer or distribution lines,it mainly protect transformer or lines form short circuit and ... 000A, 12,000A 6) Breaking voltage: 110 - 170kV 7) Power frequency withstand voltage: 40-70kV 8) Leakage distance: 250 - ... 24 hours timer, weekly timer, General relay and sockets.Distribution box: Metal box and plastic, different way and size. ...