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Company Information

Zhejiang Xikai Electric Co., Ltd

City: Wenzhou

Province/State: Zhejiang

Country/Region:  China

Load Break Switch Indoor/LBS/24kV/630A/FN12-12/IEC60265

Rated Voltage:12kV
Rated Current:630A
Rated Frequency:50Hz
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Product Description

FN12 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.
FN12-12DR Load Break Switch-Fuse Combination is made up of FN12-12D load switch and S LAJ-12(XRNT -10) H. 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.

A. GB3804-90<3~65KV AC H. V Load switch>
B. GB16926-1997(eqv. IEC62271-2002)
C. GB1995-89 Normal Serviec Condition
A. The ambient air temperatrue: Max: +40oC. Min: -25oC.
B. The altitude ≤ 1000m.
C. The relatire humidity of air Daily average ≤ 95%. Monthly average ≤ 90%
D. The ambient air should not be obviously polluted by corrosivity or the flammability gas and geam. etc.
E. Without frequent shake.
F. Enviroment degree: Grade II.
If requirements are not mentioed above, users can fix them with the manufacturer.

1Moving contact positionmm200±8-2
2Between Phases distance (before mechanism store energy)mm210±3
3Moving contact ultra travelmm40±2
4Auxiliary contact distancemm40±2
5Three-phase switch on-and-off synchronicitym/s<3
6Switch-off speedm/s>2.8>2.8
7Switch-on speedm/s>3.8
8Distance between metal value and conducting pipemm>125
9Across isolating distance of earth switchmm>150
10Main. loop resistanceμΩ<120<300
11Max. Operating momentNm<160

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