product name :FZN21-12 Indoor Ac High Voltage Vacuum Load Switch

The type FZN21-12D/630 20 and FZRN21-12D/T125-31.5 type indoor AC high voltage vacuum load switch –fuse combination is a three-phase AC 50HZ, 12KV power distribution system control and protection devices, no oil , no poison ,no lights the fire and explosion hazards, widely used in factory mining enterprises and city building power distribution stations and other places. The latter more reliable than the circuit breaker protective effect of transformers and other electrical equipment , especially suitable for ring network the dual radiation power supply unit and box-type substation.

Load switch 3 to 63KV high voltage switches and related standards GB3804-1990 design, manufacture and testing ; combination of electrical GB 16926-1997 AC HV load switch – fuse combination and its standard design, manufacturing and test.

Technical Parameters