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FZN21 series indoor M.V. Vacuum load break switch and its fuse combination are applied for 12kV, 24kV and 40.5kV, 50/60Hz power systems. It widely use for industrial and mining area, to cooperate for Ring Main Units and Terminals. It can distribute, control and protect the electric power. This product fulfill with the requirements of following standards:IEC 60265-1/FDIS
Technical Information
Technical Specification |
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Rated voltage | kV | 12 | 24 | 40.5 |
Rated current | A | 630 | 630 | 630 |
Rated power frequency | Hz | 50/60 | 50/60 | 50/60 |
Short circuit making capacity | kA Peak. | 50 | 31.5 | 31.5 |
Peak withstand current | kA Peak. | 50 | 50 | 50 |
Short time current | kA eff. |
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1Sec. |
| 25 |
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3Sec. |
| 20 | 20 | 20 |
Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11) | A | 2000 | 2000 | 1700 |
Max. fuse current(XRNT Fuse) | A | 200 | 200 | 100 |
Power frequency withstand voltage 50Hz 1 min,: |
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- To earth and between poles | kV | 42 | 65 | 95 |
- Across isolating distance | kV | 48 | 79 | 110 |
Impulse withstand voltage 1.2/50μ s: |
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- To earth and between poles | kV | 75 | 125 | 185 |
- Across isolating distance | kV | 85 | 145 | 215 |
Mechanism Endurance |
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-Vauum interrupter | cycles | 10000 | 10000 | 10000 |
-Main switch and Earth Switch | cycles | 2000 | 2000 | 2000 |
Overall and installation dimensions
National Advisory Hotline
+86 577 61666 016
Mailbox：wzxikai@wzxikai.com
Tel：+86 577 61666 016
Fax：+86 577 61666 010
Add：No.271, Weishiqi Road, Yueqing Economic Development Insuatrial Zone, Yueqing, Zhejiang.
Copyright ? Zhejiang Xikai Electric Co. , Ltd. 技術支持：鼎諾傳媒
