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China Leading UL489 Miniature Circuit Breaker Manufacturer

Explore our diverse range of Miniature Circuit Breakers (MCBs), each designed for specific applications and markets. Rigorously tested and globally certified, our MCBs ensure the highest levels of safety and reliability, reducing maintenance needs and extending operational uptime.

UL489 Certified Quality

UL 489 Listed Circuit Breakers for North American Markets

Certificate Number: E535785

High Breaking capacity

Breaking capacity up to 22 kA
Rated Currents up to 70A
Rated voltage up to 1000Vdc

No Nuisance Tripping

Great primary branch protection and fast short-circuit interrupt to ensure your electrical safety

Easy Installation and Maintenance

Space and Time Saving Mount with Din 35mm & back-fixing auxiliary contact

HIITIO UL489 miniature circuit breaker

  • UL 489 listed a full line of miniature circuit breakers
  • Circuit breaker mountable on standard 35mm DIN rails with optional feet for front-and-bottom mounting
  • The voltage is 120/240Vac, which meets the standard 10kA breaking current
  • Suitable for the protection of main circuit devices
  • Contact position indication (red or green)
  • Switch can be locked in the ON or OFF position
  • Main circuit or branch protection

Check Our UL489 MCB/MCCB Series

UL AC Thermal Magnetic Miniature Circuit Breaker

  • Rated current: 5-60A
  • Rated voltage: AC120/240
  • Terminal: BB/QC

UL Plug-in Miniature Circuit Breaker

  • Rated current: 5-60A
  • Rated voltage: AC120/240
  • Short-Circuit Capacity: 10kA

UL Photovoltaic DC Hydraulic MCB

  • Rated Current: AC 0.5-125A, DC 0.5-400A
  • Maximum Voltage: 250Vac, 80Vdc
  • Rated Voltage: 250V, 500v, 750v, 1000Vdc

UL Thermal Magnetic AC Specialty Equipment Circuit Breaker

  • Rated current: 10-200A
  • Ratage Voltage: 277Vac/480Vac

UL PV DC Molded-Case Circuit Breaker

  • Rated Current: 100, 125, 140, 160, 180, 200, 225, 250A
  • Ratage Voltage: 1000Vdc
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Leading Supplier of Miniature Circuit Breakers in The Electrical Equipment Market

HIITIO is a first-tier electric products manufacturer located in Hangzhou, Zhejiang, China, dedicated to providing you with worry-free circuit protection. 

With over 20 years of experience and more than 500 satisfied customers across 50+ countries, HIITIO is your trusted partner for high-voltage DC solutions in electric vehicles, solar energy systems, energy storage applications, and more.

20

Years Industry Experience

50+

Countries & Areas

500+

Happy Customers

IATF & ISO Audited

HIITIO Achieved ISO 9001, ISO 14001, ISO 45001, andIATF 16949:2016 Certifications, reaffirming its commitment to excellence in quality, environmental responsibility, and occupational health and safety.

100% Quality Management

HIITIO has a state-of-the-art internal quality testing laboratory and a dedicated team of quality control specialists, conducting 100% testing of industrial electrical equipment before shipment to ensure top product quality and eliminate any concerns.

Strong R&D Capability

Our seasoned team's extensive technical knowledge in electrical systems serves to elevate the safety and efficacy of your projects.

Automated Factory Insight

Certified Testing Laboratory

Packing and Warehouse

Partnering with Our Circuit Breaker Experts for Your Circuit Safety

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