ETEK is a rising star among manufacturers of AC and DC surge protectors, primarily producing SPD products for T1+T2 and T2 in the field of power distribution and photovoltaics.
ETEK is leading manufacturer in China PV combiner box supplier. We provide global customers with reliable, safe, cost-effective PV string box solutions featuring fast delivery and superior design.
EKDB10 series waterproof distribution box, made of durablePC engineering plastics, offers excellent mechanical strengthand weather resistance, Designed to meet international lECstandards,it ensures reliable protection for electricalequipment in industrial, commercial, photovoltaic, andotherindoor or outdoorapplications.
ETEK manufactures DC breakers, DC fuses, DC SPDs, and isolator switches for PV systems—engineered for reliable protection, stable operation, and fast delivery.
Reliable Solar Combiner Boxes & DC Protection Devices
WUHU ETEK ELECTRIC CO.,LTD. is a leader in DC photovoltaic combiner box and AC combiner box in China, the company
produces all components for AC and DC combiner box and provides design and customization of combiner box
Specialized in the research, development, production and sales of low-voltage electrical products.
Plant Area
4W+
Staff
500+
Technical Personnel
50+
Export Countries
100+
Brand Agent
30+
Industry Experience
15+
Level of Automation
≥50%
Quality Assurance
Testing Center in Compliance with IEC Standards
Management System Certification:ISO 9001/14001/45001
Product Conformity Certification
Corporate Culture
ValuesIntegrity, Innovation, Focus, and Win-Win
VisionDedicated to Becoming a Globally Renowned Manufacturer in the Power Distribution Electrical Industry
MissionManufacturing safer and smarter power distribution electrical products to facilitate the development of green and digital energy
WenZhou Factory
Wuhu Factory
Why Choose ETEK for Your PV Combiner Box Solutions?
Certified
ETEK is an ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 (Occupational Health & Safety) certified manufacturer. All our products comply with IEC/EN standards and are RoHS-compliant, backed by CE, CB certificates, and test reports issued by internationally recognized certification bodies including: TÜV Rheinland VDE Bureau Veritas (BV) Intertek 100% Export-Oriented Production – Every unit is manufactured for global markets.
Efficient
ETEK as a specialized manufacturer of solar electrical components, we control the entire production process from design to delivery, ensuring top quality at competitive prices. Our Core Product Lines Include: Protection & Distribution: AC/DC MCBs, MCCBs, Isolators, Fuses Surge Protection: AC/DC SPDs for complete system safety Connectors & Combiner Boxes: MC4 connectors and custom PV combiner boxes Manufacturing Advantages: • In-House Production: Full control over quality and lead times • Rapid Delivery: Standard ETEK-branded items ship within 24 hours • Custom Solutions: Comprehensive OEM/ODM services available • Cost Efficiency: Factory-direct pricing with no middleman markup Global Reach, Local Support – Your One-Stop Solar Electrical Solutions Partner
Reliable
ETEK manufactures all products in strict compliance with ISO 9001 Quality Management System and relevant IEC standards, ensuring excellence across every stage: ✅ Material & Design: Corrosion-resistant, flame-retardant materials engineered for harsh environments. ✅ Certifications & Tests: TÜV Rheinland, VDE, and IEC-certified with full test reports available. ✅ Manufacturing Control: Automated production with 100% Hi-Pot testing and traceable quality control. ✅ Field Performance: Proven reliability in 50MW+ solar farms across 30+ countries. 3-Year Warranty – All products come with a comprehensive warranty. Global Exhibitions: We actively participate in premier trade shows including: Canton Fair (Guangzhou) Intersolar Europe (Germany) Intersolar South America (Brazil) SNEC (Shanghai) Trusted Partnerships: ✔ 100+ corporate clients worldwide ✔ Successfully passed audits by 15+ international factories.
Fast answer: start with current and cables Solar breaker sizing is not only about “matching the inverter.” In most panels, the breaker’s primary job is to protect conductors and clear faults safely. Start with the maximum continuous current, confirm cable ampacity (temperature, installation method), then coordinate upstream/downstream devices. What are you protecting: cable, inverter, or […]
Quick answer: the best AC SPD placement For most rooftop and small commercial PV systems, AC SPD placement works best in one of two spots: (1) near the inverter AC output to protect the inverter and shorten the surge path, and/or (2) at the main distribution board to protect building circuits and coordinate with upstream […]
Fast answer: the 3 most common causes Solar AC SPD failing repeatedly is usually not a “bad SPD” problem. It is typically caused by one (or more) of the following: Long, looped leads: added inductance raises the effective clamping voltage during surges. Poor earthing or weak bonding: surge current cannot return to earth cleanly. Wrong […]
What a Type B RCCB does in solar PV systems A type b rccb for solar is designed to trip on a wider range of residual currents than Type AC or Type A devices, including smooth DC residual currents that can appear in modern power-electronic equipment. In solar PV inverter AC panels, the right RCD […]
2026/01/12
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