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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

Productivity:50sets/week
Rated Voltage:12kV
Rated Current:630A
Rated Frequency:50Hz
Price:Negotiable
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Product Description

Summary
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.

Application
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.

Standard
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.

No.DescriptionUnitFN12-12D/630FN12-120D(R)D/100
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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