productslogo-2-25

FN12-12KV

Vacuum Load Breaking Switch

N12-12D/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.

3.0

FN12-12DR/100-31.5 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

NO Item Unit Data
FN12-12d/630 FN12-12(R)D/125
1 Rated voltage kv 12
2 Rated frequency Hz 50
3 Rated current A 630 100
4 1 min power frequency withstand voltage kv Earthing to earthing and between phase 75,isolation fracture 85
5 Light implus withstand voltage kv Earthing to earthing and between phase 42,isolation fracture 48
6 Rated thermal stable current kA 20(4s)
7 Rated peak withstand stably current kA 50
8 Rated making current(peak) kA 50 50
9 Rated breaking current (expected value) KA 31.5
10 Rated shift current KA 1.5
11 Breaking current kA 1.8
12 Breaking off-load transformer capacity kVA 1250
13 Rated cable charging current A 10
14 Rated active load current breaking times Time >100
15 Ram touched load switch off time S <0.06
16 Earth switch thermal stable current kA 20(2s)
17 Earth switch thermal stable current (peak) kA 50 50
18 Motor operation supply voltage V AC&DC 110、220