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Reliable Quality Ceramic Surge Protection Device Surge Arrester 21kv 10ka
US$5.00-35.00
50 Pieces
Sample price:US$50.00/piece.Request sample
Product profile
Customization
AvailableType
Power Source ArresterStructure
Zinc Oxide ArresterModel NO.
21KV 10KAInstallation
Parallel ArresterApplication
AC/DC SystemSize
MeidumOperation Voltage
High VoltageShape
ColumnMaterial
ZnOCertification
ISO9001Name
Polymer ArresterVoltage Class
21kvNominal Discharge Current
5ka and 10kaColor
Gray or BrownTransport Package
3PCS Individual Cartons Per 1 Big Carton + PalletSpecification
Pallet dimension 110x110x210Trademark
WORTAI or OEMOrigin
Wenzhou, ChinaHS Code
8535400000Production Capacity
30000PCS/MonthKey features
Gapless ZnO Design: Metal oxide surge arresters without gaps prevent damage from surges with non-linear characteristics.
Polymer Housing: Silicone housing offers high hydrophobicity, UV resistance, and suitability for contaminated environments.
Wide Voltage Range: Available in rated voltages from 3kV to 36kV with nominal discharge currents of 5kA or 10kA.
Certified Quality: Certified by ISO9001, ISO14001, KEMA, CNAS, and homologated by C.F.E. laboratories.
Customization Support: OEM and ODM services are welcome with customizable names, voltage classes, and colors.
Fast Response Time: We promise to reply to customer emails within 24 hours for efficient communication.
Global Experience: Over 20 years of manufacturing experience with sales in more than 20 countries and regions.
Flexible Delivery: Attractive lead times with plenty of equipment and workers to ensure timely delivery.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-09-16Nearest Port: ningboAverage Response Time: ≤5.12hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF, Others
AI-Powered supplier vetting
SummaryYueqing Wortai Electric Co., Ltd. is a China-based electrical and electronics supplier identified as both a trading company and manufacturer/factory. Its stated product scope includes electrical equipment and accessories such as fuse cutouts, surge arresters, insulators, fuse links, hotsticks, and cable grips. The supplier reports ISO 9001 certification, eight production lines, 21–30 R&D engineers, and 21–30 quality-control staff. It offers OEM services and states that it prioritizes quality and customer service. Export activity is established, with exports beginning in 2009 and coverage across multiple global regions. However, the provided information does not substantiate specific after-sales procedures, financial strength, patented or demonstrated innovations, or named customer cases. The supplier’s 2025 registration records also show virgin silicone products supplied to Vietnam, indicating activity beyond the listed electrical product range.
Supplier typeWORTAI is described as a Chinese industrial electrical equipment and accessories company. Official classifications identify it as both a trading company and manufacturer/factory, while associated-company information classifies the business as wholesale and retail. This indicates a mixed manufacturing and trading model rather than a purely production-focused supplier.
CertificationsThe supplier reports holding ISO 9001 certification for its management systems. This is explicit evidence of a recognized quality-management certification, although the provided slices do not state the certificate’s issue date, scope, or validity period.
Production capacityWORTAI reports a physical factory location, eight production lines, 21–30 quality-control staff, and 21–30 R&D engineers. It also states that off-peak lead time is within 15 working days and peak-season fulfillment takes one month, providing direct evidence of organized production and fulfillment capacity.
Customization capabilityThe supplier explicitly states that it provides OEM services worldwide, and its product range covers multiple industrial electrical components. This directly supports the ability to undertake customer-specific or OEM work, although the slices do not specify customization scope, tooling capability, minimum order requirements, or engineering procedures.
Product Q&A
Q:What is the rated voltage range?
A:
The rated voltage (Ur) ranges from 3kV to 36kV, with specific models available for various system requirements.
Q:What are the nominal discharge current options?
A:
We offer nominal discharge currents (In) of 5kA for normal duty and 10kA for heavy duty series.
Q:Is the surge arrester gapless?
A:
Yes, these are metal oxide surge arresters without gaps, designed to prevent damage from typical surges.
Q:What certifications does the product have?
A:
The product is certified by ISO9001, ISO14001, KEMA, CNAS, and complies with IEC60099-4 and IEEE C62.11 standards.
Q:Can I customize the product?
A:
Yes, OEM and ODM services are welcome. Customization includes name, voltage class, discharge current, and color.
Send Inquiry
*To:
Yueqing Wortai Electric Co., Ltd.
Yueqing Wortai Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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