High-voltage DC contactors are essential components in modern industries, enabling the safe and efficient control of electrical circuits in applications such as electric vehicles (EVs), renewable energy systems, and industrial automation. As the United States continues to lead in technological innovation and clean energy adoption, several brands have emerged as key players in this critical market.
This article explores the top five high-voltage DC contactor brands in the U.S. Each brand stands out for its innovation, reliability, and market presence, shaping the future of high-voltage electrical solutions.
1. Zhejiang HIITIO New Energy

Zhejiang HIITIO New Energy, founded in 2018 and based in Hangzhou, China, has quickly established itself as a notable player in the high-voltage DC contactor market through strategic exports.
Key Features
- HIITIO’s contactors feature ceramic sealing technology.
- Current ratings range from 20A to 1000A, with voltages up to 2000VDC.
- Compact, safety-focused designs ideal for EVs, photovoltaic systems, and energy storage.
- Offers flexibility and ease of installation.
Market Position
Although a Chinese brand, HIITIO’s commitment to quality and affordability has earned it a growing presence in the U.S. Its contactors are increasingly adopted in renewable energy and EV charging applications, reflecting its rising prominence.
2. TE Connectivity
Web: https://www.te.com/en/products/relays-and-contactors/contactors/dc-contactors.html?tab=pgp-story

TE Connectivity, headquartered in Pennsylvania, USA, is a global leader in connectivity and sensor solutions, renowned for its advanced electrical components.
Key Features
- TE’s high-voltage DC contactors, such as the Kilovac and EVC series, support voltages up to 900VDC and currents up to 500A.
- Designed for demanding applications like EVs and renewable energy systems.
- Offers low power consumption, high reliability, and resilience in harsh conditions.
Market Position
With a strong emphasis on innovation and a broad customer base, TE Connectivity is a dominant force in the U.S. market. Its products are widely trusted by EV manufacturers and renewable energy projects, reinforcing its reputation for quality and performance.
3. ABB
Web: https://global.abb/group/en

ABB is a leading global technology company headquartered in Switzerland, with a significant presence in the U.S. market, particularly in industrial automation and electrical equipment.
Key Features
- ABB offers a variety of high-voltage DC contactors, including the AL series, AE series, and AF series, designed for DC circuits up to 660V.
- Engineered for reliability, safety, and seamless integration with automation systems.
- Specialized solutions for EV charging stations and renewable energy applications, supporting voltages up to 1000VDC.
Market Position
ABB is highly regarded in the U.S. for its innovative industrial automation solutions and high-quality electrical equipment. Its high-voltage DC contactors play a vital role in renewable energy and electric vehicle sectors, reinforcing its leadership in these fast-growing industries.
4. Sensata Technologies
Web: https://www.sensata.com/products/gigavac-power-contactors-fuses

Sensata Technologies, headquartered in Massachusetts, USA, is a leading provider of sensors and electrical protection solutions, bolstered by its acquisition of GIGAVAC.
Key Features
- Sensata’s high-voltage DC contactors support voltages up to 1000VDC.
- Designed for EVs, energy storage systems, and industrial equipment.
- Features low contact resistance, high shock tolerance, and rugged designs for challenging environments.
Market Position
The GIGAVAC acquisition has solidified Sensata’s standing in the U.S. market. Known for technical expertise and tailored solutions, the brand is a go-to choice for the EV and renewable energy sectors.
5. Littelfuse
Web: https://www.littelfuse.com/products/relays-contactors-transformers/high-voltage-dc-contactor-relays

Littelfuse, based in Illinois, USA, is a global leader in circuit protection, expanding its expertise into high-voltage DC contactors for emerging applications.
Key Features
- Littelfuse’s contactors have voltage ratings from 450VDC to 1000VDC.
- Compact and reliable, designed for battery management systems and EV charging equipment.
- Features high electrical endurance and integrated safety mechanisms, ideal for space-constrained setups.
Market Position
Building on its circuit protection legacy, Littelfuse has gained momentum in the U.S. high-voltage DC contactor market. Its focus on safety and innovation makes it a trusted name in electric mobility and energy storage.
Conclusion
The U.S. high-voltage DC contactor market thrives on the contributions of these five standout brands. TE Connectivity and ABB lead with their extensive experience and global reach, while Zhejiang HIITIO New Energy brings innovative, cost-effective solutions to the table. Sensata Technologies and Littelfuse complement the list with specialized expertise in electrical protection and power control, meeting the needs of cutting-edge applications.
As electrification and renewable energy continue to drive demand, these brands are at the forefront of delivering reliable, efficient, and safe solutions. Together, they highlight the diversity and strength of the U.S. market, paving the way for a more sustainable and technologically advanced future.