FKN12-12 Indoor is a three-phase H. V switch equipment, which is used for 12KV 50Hz for breaking and switching load current, no-load transformer cable charging current and closing short-circuit current. The load switch with earth switch can switch short-circuit current.
FKN12-12 Indoor Load Break Switch-Fuse Combination is made up of FN12-12D load switch and XRNT-10H. V current limiting Fuse. This switch can break any current till short-circuit current. Because of the striker of the fuse, the switch can switch off automatically.
It is used for the ring main units and industrial equipment of 12KV and three-phase AC 50Hz to control load and short-circuit current. Because the switch-fuse combination protects transformer equipment more reliably than circuit breaker. It is especially suitable for ring main units, radial distribution and combined transformers.
