Product Description

21kV Electrical Surge Arresters Metal Oxide Zinc Arrester Gapless Type
Experience unparalleled protection with our advanced Polymer Lightning Arrester, commonly known as a surge arrester. This state-of-the-art device leverages the exceptional nonlinear volt-ampere characteristics of zinc oxide. Under normal operating voltages, the arrester maintains an exceptionally low current flow, measured at microampere or milliampere levels. However, when faced with an overvoltage event, the arrester's resistance dramatically decreases, effectively releasing the overvoltage energy to safeguard your valuable equipment. Unlike traditional arresters, our cutting-edge design features a gapless structure that enhances its protective capabilities by utilizing the nonlinear zinc oxide properties for leakage and disconnection. In the event of protection failure or absence, the electrical system is exposed to potential lightning strikes, leading to hazardous voltage spikes that can wreak havoc on transmission lines and substantially damage transformers and other critical electrical equipment..
Technical Specification
Main Technical Parameter
Description |
Zinc oxide gapless lightning arrester |
Model |
YH10W-21 |
Line discharge class |
I |
Rated voltage of lightning arrester |
21 kV |
Rated discharge current rating |
10 kA |
Maximum continuous operating voltage |
17 kV |
DC 1mA reference voltage |
≥33 kV |
8/20μs lightning current impulse residual volatge |
≤63 kV |
Creepage distance |
750 mm |
High current, 4/10 μs, impulse withstand |
100 kA |
Company Introduction
Established in the illustrious China Electric Capital, Yueqing City, Yuanneng Power has been a beacon of innovation and quality since 2007. Our company is a trailblazer in power infrastructure, excelling in generation, transmission, and distribution systems. As a modern high-tech enterprise, we seamlessly blend production, development, sales, and service. Our extensive product range includes polymer insulators, fuse cutouts, surge arresters, disconnect switches, and essential power fitting products.
To thrive in the global arena and secure a competitive edge, Yuanneng Power rigorously adheres to international standards such as IEC, ANSI, IEEE, and GB. Our products have achieved esteemed certifications from Xi'an High Voltage Apparatus Research Institute Co., Ltd (XIHARI), the National Insulator & Lightning Arrester Quality Supervision Inspection Center, and the State Grid Electric Power Science Academy Quality Inspection Test Center.
Leveraging the rapid and efficient logistics of Ningbo Port and Shanghai Port,
Yuanneng Power efficiently distributes its products to a global clientele. With an impressive annual production capacity of 500,000 polymer insulators, 500,000 lightning arresters, 350,000 dropout fuse cutouts, and 250,000 disconnect switches, we stand as a reliable partner, maintaining a competitive edge and providing robust support to our clients.
At Yuanneng Power, we steadfastly uphold our core principles of 'Human-oriented, Credibility-based' development. We eagerly anticipate forging fruitful partnerships with you. In connecting electricity, we connect the world.








Q: Are you a manufacturer or a trade company?
We are a distinguished manufacturer with over 15 years of expertise in China.
Q: Where is your factory located?
Visit our factory at Room 101, Building 2, No. 28, Binhainansan Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China.
Q: Can I customize surge arresters to my specifications?
Absolutely! We welcome both OEM and ODEM collaborations.
Q: Can I receive a sample of the arrester for evaluation?
Yes, samples are available. Your esteemed company will cover the sample and courier fees, which will be reimbursed with your first order.
Q: What is the lead time for a sample?
Typically, samples are prepared within one week.
Q: What are your MOQ and delivery time for arresters?
The minimum order quantity for arresters is 100 pieces, with a delivery lead time of 25 days.
Q: Do you provide type test reports for arresters?
Yes, we offer type test reports on select models. Due to the high testing costs, feel free to contact us for detailed information.
Q: What are your payment terms?
Our standard payment terms are T/T and L/C. We are open to discussing alternative options.
Q: How are the lightning arresters packaged?
Our lightning arresters are securely packaged with carton and pallet packing.
Q: What standards do your arresters comply with?
Our arresters adhere to the IEC 60099-4 standard.