Air Circuit Breakers (ACB) for Industrial Power Systems
Air Circuit Breakers (ACB) are essential components in low-voltage power distribution systems, designed to protect electrical circuits from overload, short circuit, and fault conditions.
Certified By
MOREDAY ACB Product Lineup - Complete Technical Specifications
Why Choose MOREDAY?
MOREDAY is a professional manufacturer with over 17 years of experience in designing, producing, and exporting miniature circuit breakers. Located in Yueqing – China’s “Electric Device Metropolis” – we serve distributors, contractors, and electrical engineers across 30+ countries with high-quality, IEC/CE/RoHS certified circuit protection solutions.
- From DC components to energy storage solutions, MOREDAY provides a complete portfolio to support solar, EV charging, and low-voltage electrical applications.
- Equipped with advanced production lines and strict QC processes, we ensure consistent product performance and long-term reliability.
- All products comply with international standards such as IEC, CE, and RoHS, making them suitable for projects across Europe, Asia, and beyond.
- Flexible customization options including branding, specifications, and packaging help you adapt to different market demands and grow your business.
- With rich export experience, MOREDAY offers fast response, stable delivery, and technical support to ensure smooth cooperation and long-term partnership.
Industrial plants
Essential Safety Components for the Era of New Industrialization
Commercial buildings
Indispensable Power Management Hardware for Commercial Buildings
Power stations
This is the heart of the city, and the ACB is the heart of the power plant
Data centers
Vast amounts of computing power and storage rely on electricity to operate
More Than Just a ACB Manufacturer
At MOREDAY, we go beyond manufacturing MCBby offering a suite of value-added services tailored to meet your project needs. Our commitment to excellence ensures that every customer receives personalized attention, expert guidance, and seamless support throughout their journey with us.
Technical Consultation
Our engineering team provides professional DC protection design support for solar PV systems. From breaker selection to full combiner box configuration, we help you ensure safety, compliance, and long-term reliability.
OEM & Custom Solutions
We support logo printing, customized voltage ratings, special tripping curves, and private label packaging. MOREDAY helps distributors and project contractors build competitive branded products for local markets.
Certified Quality Assurance
Our products comply with CE, CB, and TÜV standards. Each unit undergoes strict testing for breaking capacity, temperature rise, and durability to meet international project requirements.
Global Project Experience
MOREDAY products are widely used in solar power plants, energy storage systems, EV charging stations, and industrial applications across Europe, Asia, and Africa.
Knowledge About ACB
- What is an ACB?
An Air Circuit Breaker or ACB is an electrical device that protects circuits from excessive current. They are automatic switches that safely interrupt high currents under unusual conditions. This may include overload or short circuits.
- How to choose ACB?
With various options available in the market, selecting the appropriate ACB involves considering multiple factors such as voltage ratings, current carrying capacity, fault protection, and specific application needs.
- What information is useful for an ACB quotation?
1. Electrical Specifications
- Rated current (A)
- Rated voltage (V)
- Breaking capacity (kA)
2. Configuration
- Number of poles (3P / 4P)
- Fixed or draw-out type
3. Protection & Functions
- Trip unit type (thermal-magnetic / electronic)
- Protection features (overload, short circuit, earth fault)
4. Installation Details
- Mounting type
- Application (industrial, commercial, generator, etc.)
5. Quantity & Delivery
- Order quantity
- Delivery time requirement
- Destination country
6. Optional Requirements
- Accessories (auxiliary contacts, shunt trip, motor operator)
- Certification (CE, IEC, etc.)
Get Your ACB Quote Today
We provide samples for free, you just need to tell us what you need