Indoor Vacuum load break switch with fuse, range 24kV, 36kV, 630A,1250A FZ(R)N- ... 40.5(24kV available) vacuum disconnect load break switch(Short for LBS, load switch or switch disconnector) and fuse combination apparatus is used ... breaking current can up to 6.3KA, long mechanism life, there is an security lingkage between main switch,disconnect blade and earthing ...