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High Power Resistors Engineered for Performance

Premium Power Wirewound, Dynamic Braking, Water Cooled & High Voltage Resistors from a trusted Chinese manufacturer since 2007.

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Who We Are

Shenzhen Zenithsun Electronics Tech. Co., Ltd. was founded in 2007 and is one of the leading manufacturers in China for Power Resistors, High Voltage Resistors, and Load Banks.

Quality Is Our Culture

At Zenithsun, we believe that Quality is Life, Product is Character. We uphold the spirit of craftsmanship to deliver reliable, high-performance resistors trusted by industrial clients worldwide.

Our products are designed for demanding applications including dynamic braking, load testing, energy dissipation, and high-voltage systems across industries such as rail, renewable energy, industrial automation, and power electronics.

  • ISO-Certified Manufacturing
  • 17+ Years of Industry Experience
  • Global Distribution Network
  • In-House R&D and Testing
High Power Resistor Ceramic Tube Resistor Dynamic Braking Resistor Tubular Wire Wound Resistor

Our Premium Products

Explore our wide range of high-power resistors designed for industrial, commercial, and specialized applications.

2000W Water Cooled Resistor

2000W Water Cooled Resistor

  • Technology: Wirewound
  • Power: 2000W
  • Resistance: 1Ω–500MΩ
  • Features: Aluminum Housed, Non-Inductive
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3000W Plate Shaped Resistor

3000W Plate Shaped Resistor

  • Technology: Wirewound
  • Power: 3000W
  • Resistance: 0.5Ω–100kΩ
  • Features: Black Coating, High Durability
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High Power Non-Flammable Resistor

Non-Flammable Ceramic Resistor

  • Technology: Wirewound
  • Power: 250W–1000W
  • Resistance: 1Ω–10MΩ
  • Features: Ceramic Tube, Fire-Resistant
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Dynamic Braking Resistor

Dynamic Braking Resistor

  • Technology: Wirewound
  • Power: 50W–2000W
  • Resistance: 10R–100R
  • Features: Aluminum Cased, IP20 Rated
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Ceramic Tubular Resistor

Ceramic Tubular Wire Wound

  • Technology: Wirewound
  • Power: 100W–500W
  • Resistance: 0.1Ω–100kΩ
  • Features: Long Lead Wires, High Temp
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High Voltage Thick Film Resistor

High Voltage Thick Film

  • Technology: Thick Film
  • Power: 3W–15W
  • Resistance: Up to 10GΩ
  • Features: Non-Inductive, Low TCR
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600W Thick Film Resistor

600W Thick Film Resistor

  • Technology: Thick Film
  • Power: 600W
  • Resistance: 1Ω–500MΩ
  • Features: Auxiliary Heatsink Cooled
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LED Load Resistor

500W LED Load Resistor

  • Technology: Wirewound
  • Power: 500W
  • Resistance: 10Ω–1kΩ
  • Features: Aluminum Housed, Chassis Mount
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Why Choose Us?

We deliver unmatched performance, reliability, and technical support for your high-power resistor needs.

Certified Quality

ISO-compliant manufacturing with rigorous in-house testing ensures every resistor meets international standards for performance and safety.

Custom Solutions

Need a specific resistance, power rating, or form factor? Our engineering team supports OEM/ODM projects with tailored resistor designs.

Global Support

Fast response times, multilingual support, and reliable logistics ensure seamless collaboration no matter where you are.

17+
Years in Business
50+
Countries Served
200+
Product Variants
10K+
Units Shipped

Frequently Asked Questions

What types of high power resistors do you manufacture?

We specialize in Wirewound, Thick Film, Dynamic Braking, Water Cooled, Ceramic Tubular, and High Voltage Resistors. Our product range includes load banks, rheostats, LED load resistors, and neutral grounding resistors.

Can you customize resistors for specific applications?

Yes, we offer OEM/ODM services. Our engineering team can customize resistance values, power ratings, dimensions, mounting styles, and cooling methods to meet your exact requirements.

What is the lead time for orders?

Standard products typically ship within 7–15 days. Custom designs may take 2–4 weeks depending on complexity. We provide updates at every stage of production.

Do you provide technical support?

Absolutely. Our technical team provides datasheets, application guidance, thermal management advice, and integration support to ensure optimal performance.

Get in Touch

For quotes, technical inquiries, or custom design requests, visit our official website to connect with our team.

Visit Official Website to Contact

Email: sales06@zsa-one.com

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