FN7-12DR 12KV load break switch 400A 630A
1.General
The AC H.V load switch FN7-12DR is a new type gas using indoor hv load break switch, adapt to 3 phases AC electrical power system with the frequency 50HZ and rated voltage 12KV. It is used to break out the load current and cut the short current.
Rated voltage: 12 KV
1min power frequency withstand voltage, Earth to earth and between phase: 42 KV
1min power frequency withstand voltage, Isolation fracture: 48 KV
Lightning surge withstand voltage, Earth to earth and between phase: 75 KV
Lightning surge withstand voltage, Isolation fracture: 85 KV
Rated current: 400A / 630A
4S Thermo stable current(virtual value): 12.5KA / 20KA
Rated current(KV. Peak value): 31.5KA / 50KA
Supplier: Japanese quality switchgear components, breakers, magnetic contactors, switches, pilot lights, pushbuttons, panel instrumentations, power management meter, protection relays, transformers, inverters, ups.
FN12-12D 12KV load break switch 630A 1000A 1. General FN12-12D/630-50 indoor AC high voltage load break switch, rated voltage is 12KV, rated frequency is 50Hz. It is a kind of three phases high voltage switch equipment. It can be used to breaking- closing load current, closed current, charge current for no-load transformer and cable, closing short-circuit current. The Load break switch which assembleds earthing switch can sustain short-circuit current. FN12-12DR/1000-31.5 indoor AC high voltage load break switch-fuse combination electrical appliance is a combinated indoor high voltage switch equipment which combinated by FKN12-12D load break switch and S?LAJ-12(XRNT?-12)high voltage limiting current fuse. This appliance can open any current up to short circuit current; Load break switch open working current, Fuse open short circuit current, combination open any current from working current to short circuit current, meantime Fuse makes the Load break switch opening through striking
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