Molded Case Circuit Breakers
Reliable Protection for Every Circuit
High breaking capacity and dependable circuit protection for industrial, commercial and renewable energy applications.
FROM WENZHOU.
POWERING THE WORLD.
Since 1989, HUYU Electric has focused on manufacturing reliable electrical protection solutions, including molded case circuit breakers, air circuit breakers and low-voltage electrical equipment. From component selection and enclosure design to assembly, testing and final inspection, we provide trusted solutions for industrial power, renewable energy and low-voltage electrical applications worldwide.
MORE ABOUT US
35+
Years of electrical manufacturing experience and continuous innovation for global customers.
Manufacturing Experience
Markets Served
Full Rating Range
Customization
MCCB
For Global Power Distribution Projects
Factory-direct molded case circuit breakers for both AC and DC applications, covering 16A to 1600A with breaking capacity up to 85kA. Available in 1P–4P with thermal-magnetic trip units and adjustable protection settings. Built to IEC 60947-2 with CE, TUV and CB certifications — trusted by distributors, switchgear manufacturers and EPC contractors worldwide.
16A–1600A · Up To 85kA Breaking Capacity
AC versions for 220V / 380V / 690V systems and DC versions up to 1500V for renewable energy and energy storage. Reliable overload, short-circuit and under-voltage protection for industrial plants, commercial buildings and infrastructure projects.
OEM / ODM · Private Label
Custom ratings, trip settings, terminal and enclosure design, housing colors and branding. We support switchgear manufacturers, distributors and EPC partners with tailored MCCB solutions.
SUPPORTING GLOBAL PARTNERS
WITH RELIABLE ELECTRICAL SOLUTIONS
RELIABLE QUALITY ASSURANCE
Strict quality control and professional manufacturing processes ensure stable performance and dependable molded case circuit breakers for every electrical project.
FLEXIBLE CUSTOM SOLUTIONS
From product specifications and materials to configurations and branding, we provide flexible MCCB solutions for different market requirements.
PROFESSIONAL TECHNICAL SUPPORT
Our engineering team provides technical communication, application guidance and professional support throughout your MCCB projects.
LONG-TERM PARTNERSHIP
We build sustainable cooperation with distributors, EPC companies and global customers through competitive factory-direct pricing, stable delivery and continuous support.
Compact. Reliable.
Cost-Optimized Power Protection
Product Features
01HUYU molded case circuit breakers deliver reliable AC and DC circuit protection, adjustable trip control and safe power distribution in a compact design for industrial and renewable energy systems.
Your Benefits at a Glance
02Optimized MCCB solutions help reduce installation effort, simplify maintenance and improve long-term reliability for power distribution projects.
Advanced Product Features
03Engineered with optimized housing, durable components and flexible configurations to meet different AC and DC application requirements.
Start Your Electrical Project With HUYU
From product selection to customized manufacturing, HUYU provides complete support for molded case circuit breaker and electrical protection solutions.
Visit Our Website
Explore HUYU molded case circuit breakers, electrical boxes and distribution solutions. Contact us to request samples and product information.
Customize Your Solution
Choose ratings, trip settings, terminal and enclosure design. Our engineering team supports customized MCCB solutions.
Get Quote & Start Production
Receive technical support, quotation and production assistance from HUYU for your molded case circuit breaker projects.
Reliable Electrical
Solutions For Global Energy
HUYU Electric manufactures molded case circuit breakers for AC and DC systems, along with distribution boxes and electrical enclosures for industrial power and low-voltage protection. Designed for reliability, safety and flexible OEM/ODM customization.
Engineered For Reliability,
Validated Through Testing.
From product development to manufacturing verification, HUYU combines engineering expertise and testing capabilities to ensure reliable molded case circuit breakers for global applications.
Engineering Innovation
Continuous product development and engineering optimization improve safety, performance and application flexibility.
Laboratory Testing & Product Validation
Our testing processes verify MCCB performance, safety and reliability through professional validation procedures before delivery.
Built For Consistent Performance
Strict production control and component management ensure stable quality across every batch and application.
Explore our smart manufacturing facility — from automated assembly and precision testing to quality inspection and global supply.
Questions About Molded Case Circuit Breakers?
Choosing the right MCCB requires matching rated current, voltage (AC or DC), breaking capacity, poles and certification requirements. Below are common questions from distributors, switchgear manufacturers, EPC contractors and project buyers.
How do I choose the right MCCB for my project?
What ratings are available for MCCB products?
Can MCCB products be customized for OEM projects?
What certifications should I check when sourcing MCCB products?
Contact HUYU
Need an MCCB Solution?
Share your project voltage (AC or DC), current rating, breaking capacity and certification requirements. Our team provides suitable MCCB solutions with competitive pricing and stable delivery for distributors, switchgear manufacturers and EPC contractors worldwide.