Adjustable MCCB Thermal Control Modular Circuit Breaker

Manufacturer of molded case circuit breakers

ONESTOP is a leading MCCB manufacturer in the market. With over 19 years of experience in the electrical industry, we offer high-quality products at the most competitive prices.

What are our characteristics

Production technology

Adopting industry-leading manufacturing processes, continuously optimizing production processes, and improving efficiency and accuracy

Customization and OEM/ODM

Supports OEM/ODM services and can provide customized solutions according to your needs, including rated current, brand identification, etc

High performance-price ratio

Efficient production and strong supply chain management ensure high quality and low prices, reducing customer procurement costs

Long term partnership

Putting customers at the center, establishing long-term stable cooperation, and assisting in the growth of customer business.

Customizable molded case circuit breaker

Explore our diverse range of custom molded case circuit breakers, widely applicable to commercial, industrial, and infrastructure distribution scenarios. We provide comprehensive solutions from reliable overload and short circuit protection to integrated intelligent control and fault diagnosis, helping you build a safe, stable, and high-performance power system.

Molded case circuit breaker 125 ampere 4P

High quality molded case circuit breaker

Adjustable MCCB Thermal Control Modular Circuit Breaker

Industrial Electrical MCCB Circuit Breaker

Intelligent MCCB circuit breaker

Factory wholesale of molded case circuit breakers

400V Thermomagnetic 630A MCCB

Adjustable three-phase molded case circuit breaker

OEM/ODM industrial molded case circuit breaker

100A CE certified molded case circuit breaker

Product Recommendations

Compact high breaking capacity molded case circuit breaker

630A Industrial Control Molded Case Circuit Breaker

A brief introduction

WHY CHOOSE US

  • Industry leading testing: Every molded case circuit breaker undergoes strict 100% international safety standard testing
  • High quality materials: High quality components ensure longer service life and reliable performance
  • Engineering Innovation: Our R&D team continuously improves MCCB technology to enhance protection
  • Global certification: Our entire MCCB series has obtained IEC, CE, UL, and regional safety certifications
  • Comprehensive support: from selection guidance to installation training and after-sales service

Why choose a molded case circuit breaker?

Choosing a molded case circuit breaker is to obtain reliable overload, short circuit, and leakage protection in medium to high capacity distribution systems. Its sturdy structure, excellent breaking capacity, and stable performance make it suitable for various scenarios such as commercial complexes, industrial plants, and infrastructure, ensuring the safe, efficient, and continuous operation of the power system.

The sturdy structure of molded case circuit breakers

Robust Construction

Built with high-quality materials for durability and longevity

Adjustable Trip Settings

Customize trip settings to suit specific application needs.

Adjustable Trip Settings

Wide Voltage Range

Available in various voltage ratings for diverse applications.

User-friendly Interface

Intuitive controls for easy operation and monitoring.

The advantages of our molded case circuit breakers

Comprehensive protection function

Equipped with overload, short circuit, undervoltage and other protection functions, it can effectively prevent electrical equipment damage and improve system safety

Strong breaking ability

Higher breaking capacity than traditional air switches, effectively cutting off short-circuit currents and reducing the risk of electrical accidents

Wide applicability

Suitable for various load protections in low-voltage distribution systems, including industrial, commercial, and construction fields.

Having high reliability

Adopting a closed structure, the internal components are not easily affected by the external environment, reducing the impact of dust and moisture on the equipment and improving its service life

Easy installation and maintenance

Adopting modular design, the volume is relatively small, easy to install, and some models support maintenance free design, reducing maintenance costs

Intelligent functions

Some models support intelligent monitoring, remote control, and communication functions, and can be connected to intelligent distribution systems to improve management efficiency

Get Your Free Sample!

We provide samples for free, you just need to tell us what you need

Not just manufacturers of molded case circuit breakers

We not only produce high-quality molded case circuit breakers (MCCBs), but also provide diverse customization and value-added services to meet your unique distribution project needs. We focus on quality and innovation, ensuring that every customer can receive tailored solutions, professional technical guidance, and seamless support throughout the entire cooperation process, ensuring the safe and efficient operation of your power system.

Service Consultation

Service Consultation

Whether your MCCB requirements are for basic applications or complex projects, our team can provide professional advice and technical consultation. For high difficulty projects, we provide in-depth engineering support to ensure that you choose the best products and application solutions.

Product Recommendations

Product Recommendations

Not sure which MCCB is suitable for your system? Our experts will provide free customized advice based on your specific operational and environmental requirements, ensuring that you receive the product that best meets your electrical protection needs.

Logistics Support

Logistics Support

If you lack a reliable freight forwarder, we can arrange transportation from the factory to the project site at no additional cost. Our logistics team ensures timely and safe delivery, ensuring that your project proceeds as planned and minimizing downtime and delays.

Installation Support

Installation Support

Do you need installation assistance? Our technical team is always ready to answer your questions and provide practical support. For large-scale projects, we can even dispatch engineers to your site to provide on-site assistance

What are our clients saying

Hear from satisfied customers about the effectiveness of our molded case circuit breakers.

“The molded case circuit breakers we purchased provided excellent protection and adaptability for our industrial systems.,,
John Doe
Electrical Engineer
“These molded case circuit breakers are easy to use and have integrated seamlessly into our operations.,,
Tom Johnson
Homeowner
“With the installation of the molded case circuit breakers, our energy efficiency has noticeably improved.,,
James Brown
James Brown
DIY Enthusiast
“After installing these molded case circuit breakers, we've seen a significant reduction in electrical faults.,,
Maria Smith
Facilities Manager
ONESTOP Company Building

Your trusted electrical equipment supplier

ONESTOP employs the most advanced production equipment and precise testing methods at all times, providing a solid guarantee for the company’s product manufacturing and quality inspection.
 
All products of the entire series have undergone strict environmental and electrical tests.
 
At the same time, the company has obtained ISO9001 quality management system and ISO14001 environmental management system certifications.

♥Wide selection
♥OEM Quality
♥100% Satisfaction Guarantee

Looking forward to working with you

FAQ

Get answers to common inquiries about molded case circuit breakers.

Molded case circuit breakers are protective devices that shield electrical systems fromoverloads and short circuits.

They work by interrupting the flow of electricity when an overload or fault is detected.
ensuring system safety.

They offer reliable protection, energy efficiency, and easy maintenance for various
applications.

They are versatile and can be used in industrial, commercial, and residential settings.

Yes, they come with a compact design that simplifies installation in various electrical
systems.

The breaking capacity refers to the maximum fault current that a circuit breaker caninterrupt safely.

While they are designed for minimal maintenance, periodic checks are recommended for
optimal performance.

Yes, many models feature adjustable trip settings to match specific application needs

They are available through electrical supply distributors and specialized online retailers.

They are compliant with industry standards to ensure safety and reliability in alinstallations.

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