FN3-12/400A，FN3-12/400A负荷开关 FN3-12/400，乐清负荷开关厂家 FN3-12/400A，作为开断负荷电流及关合电流只用。带有熔断器的负荷开关可切断短路电流起保护开关只用 High-voltage switch: fitting consist of load switch and combination electric mainly by the box implement, isolating switch (the current limit of combination fuses in isolating switch), vacuum switch tube, grounding switch, spring operation mechanism etc.High-voltage switch is a kind of function between high voltage circuit breaker and high pressure isolating switch between the electrical appliances, high-voltage switch fuse series and the high pressure often used together; Used to control power transformer. High-voltage switch is of simple arcing device, it can be to break a certain load current and load current. But it can't disconnect short-circuit current, so it is general and high pressure fuse series use, with the fuse to short circuit protection.Load switch type: name specificationsFN3系列 FN3-12/400 FN3-12R/400 FN3-12RD/400FN5系列FN5-12/400 FN5-12R/400 FN5-12D/400 FN5-12RD/400 FN5-12RL/400 FN5-12DRL/400FN7系列 FN7-12/400 FN7-12R/400 FN7-12D/400 FN7-12RD/400 FN7-12RA/400 FN7-12DXLRA/400 FN7-12DXLRAF/400FKN12系列FKN12-12/630-20 FKN12-12R/630-20 FKN12-12D/630-20 FKN12-12RD/125-31.5FZN25系列FZN25-12/630-20 FZN25-12R/630-20 FZN25-12D/630-20 FZN25-12RD/125-31.5FZN16系列FZN16-12/630-20 FZN16-12R/630-20 FZN16-12D/630-20 FZN16-12RD/125-31.5FZN21系列FZN21-12/630-20 FZN21-12R/630-20 FZN21-12D/630-20 FZN21-12RD/125-31.5联系人：徐经理 0577-62752231