Audited Supplier
Zinc-Oxide arrester is used for protection of outdoor distribution overhead line, transformer, cable connector and electric equipment from being damaged by lightning Impulse voltage and operated over-voltage.How does ZnO varistor work? ZnO has good non-linear Volt-Ampere characteristics which flowing current is tiny when working under normal voltage. However, when there's over-voltage, its non-linear Volt-Ampere characteristics takes protection effect on leakage and breaking current, as the resistance will decrease rapidly and leak the energy of over-voltage. Products are completely in accordance with IEC60099-4 standard.
* Design Highlights
√ MOV discs
- High quality MOV discs are made in Zhejiang or Chengde China.
- Made of Grade 304 stainless steel
- Duration of 42 hours into hot water around 100ºC
- Reference voltage at D.C. 1mA
- Leakage current in D.C.0.75 U1mA
| Electrical characteristics | Specification | Unit | |
| Rated voltage of Surge arrreser | 27 | kV | |
| Nominal discharge current | 5 | 10 | kA |
| Rated frequency | 50 | Hz | |
| Maximum continuous operating voltage | 22 | kV | |
| Steep current impulse residual voltage | 92 | kV(Crest) | |
| Lightning Impulse residual voltage | 81 | kV(Crest) | |
| Switching Impulse residual voltage | 69.8 | kV(Crest) | |
| Long duration current impulse withstand voltage | 150 | 250 | A |
| High current impulses | 65 | 100 | kA (Crest) |
| Rated Short-circuit current | 20 / 12 / 6 / 0.6 ± 0.2 | kA | |
| Class of Surge arrester | Class 1 or Class 2 | ||
| Application | Distribution type | ||
| With or without gap | Gapless | ||
| Designation of arrester | Design B | ||
| Spare parts | |||
| NEMA A or B mounting bracket | with/without | ||
| Disconnector | with/without | ||
| Earth lead | with/without | ||
| Bird guard cap | with/without | ||
| Line clamp | with/without | ||
| Upper terminal (incoming line) bolt size | M12 | ||
| Lower termina (outgoing line) bolt size | M10 | ||
| Material | |||
| Upper terminal | Stainless steel 304 | ||
| Housing | Polymer type | ||
| Color of housing | Dark grey / light grey | ||
| Varistor | High quality zinc oxide varistor | ||
| Size of Varistor | 35mm / 38mm /40mm / 42mm | ||
| Package | |||
| Qty/package | 1 | pc/carton | |
| Service conditions | |||
| Environment maximum temperature | 40 | ºC | |
| Pollution level | Heavy | ||
| Altitude | ≤1000 | Meter | |
| Standard | IEC60099-4:2014 | ||
Zhejiang Fuerte Electrical Apparatus Co., Ltd. (Formerly Wenzhou Fuerte Electrical Apparatus Co., Ltd. ) was founded in 1985, our company employs 220 staffs, and have down site area 19881m2, covered area 36216m2.
As one of the earliest professional manufacturers in China for fuse cutouts, surge arresters, isolating switches, porcelain and polymer insulator and other electrical protection apparatus in China, we've passed ISO certificate (by DEKRA Certification GmbH Stuttgart) and fuse cutouts are tested by CESI, Italy and KEMA, Surge arrester are tested by KEMA also. The scope of business activities includes the production and sale of these electric apparatus.
Our company has strong research and development capabilities for customization requirements for our customers. We've designed more than one hundred designs of fuse cutout for customers from different countries; Such as Kenya, South Africa, Morocco, Thailand, Korea, Pakistan, Saudi Arabia, The USA, etc. And same as Surge arrester, isolating switch, porcelain & polymer insulator, and electrical fittings. We believe we can give you most suitable products for your installation request and match the specification of your country.
Our company -- More than 40 years of production experience;
New plant covers an area of 36216m2; employs 220 staffs;
Continuous improvement and perfection of products;
10~38KV voltage level products selection;
100~300A current level products selection;
High productivity, large spare parts inventory;
CESI certificate and more laboratory test certification;
Sample order available.
Q: How about the performance of your surge arresters?
A: We use reliable material from our supplier and each batch material have qulified certificate. And the assemblied product also 100% tested before package.
Q: Can we customize the surge arresters according to our drawing/design?
A: Yes, we accept customized order, but the quantity needs to reach at 1000pcs if the mold fee are beared by you. For mold fee beared by us, the quantity need to reach to a large one.
Q: What kind of certificate of the surge arrester you have?
A: We have KEMA etc.
Q: What is MOQ of the surge arrester?
A: The MOQ of the surge arrester is 1 piece for sample.
Q: What is the warranty for the surge arrester?
A: For the all surge arrester, we offer 2 years warranty for free.
Q: What is the terms of payment?
A: T/T, L/C,western union, trade assurance or cash; 30% for deposit, the balance 70% before shipment.
Q: What is the delivery time?
A: 3 work days with stock after receiving the payment. No stock, 20 work days after receiving the payment.
