Intelligent Universal Circuit Breaker Manufacturer

The CHW1 series frame circuit breaker (3P) provides protection for critical power systems. We provide ultra wide current coverage from 200A to 6300A, with a breaking capacity of up to 120kA. We are not only a manufacturer, but also a provider of system level solutions, deeply customizing reliable guarantees for you from parameters to applications.
The CHW1 Series 3P Frame Circuit Breaker is engineered to provide reliable protection for critical power systems in industrial, commercial, and utility applications. Designed with ultra-wide current coverage ranging from 200A to 6300A, it offers a high breaking capacity of up to 120kA, ensuring robust performance even under demanding conditions.

As a CE-certified fixed and drawer-style air circuit breaker, the CHW1 Series is suitable for a variety of installation configurations and can be customized to meet specific system requirements. Its modular design allows for easy integration into existing electrical panels, making it ideal for new installations as well as retrofitting projects.

Beyond supplying high-quality breakers, we offer system-level solutions tailored to your needs. From parameter optimization to application-specific customization, our team ensures reliable protection and operational efficiency for your electrical infrastructure. Each CHW1 breaker is rigorously tested to meet international standards, delivering long-term performance and safety.

Ideal for large-scale industrial facilities, commercial buildings, and critical power distribution networks, the CHW1 Series frame circuit breaker combines advanced protection features with flexibility and ease of installation. Whether you require a fixed or drawer-style configuration, this breaker provides dependable overload, short-circuit, and fault protection while supporting system customization for enhanced operational control.

Professional power core protection: CHW1 series 4P frame circuit breaker. Covering a wide current range of 200A to 6300A, with a maximum breaking capacity of up to 120kA, it can easily meet various demanding distribution and protection requirements. Supporting comprehensive parameter customization is a solid foundation for building a safe and stable power system.
The CHW1 series 4P frame circuit breaker is designed to serve as a stable foundation for modern power systems where safety and continuity are essential.

Covering a wide current range from 200A to 6300A, the CHW1 series adapts smoothly to diverse distribution requirements, from large commercial facilities to demanding industrial installations. During normal operation, it supports stable power flow, while in abnormal conditions it responds decisively to protect downstream equipment and minimize system disruption. This balance helps users maintain confidence in their power infrastructure without constant manual intervention.

The 4-pole frame design offers enhanced protection in systems where comprehensive control and isolation are required. Its robust structure is suited for long-term operation in challenging environments, supporting reliable performance across varying load conditions.

One of the key strengths of the CHW1 series is its support for comprehensive parameter customization. This flexibility allows users to configure protection settings that closely match real-world system needs, forming a tailored and dependable power protection solution.

featuring a 3-phase electronic protection controller — a high-performance low-voltage power distribution device with a built-in digital display, push-button control (red stop/green start), and a dedicated energy storage indicator. Designed for medium-to-large power systems (e.g., industrial plants, commercial buildings, photovoltaic power stations), it integrates precise overload/short-circuit protection, real-time electrical parameter monitoring, and fault recording functions. Its modular design supports flexible configuration (e.g., drawout/fixed installation) and can replace traditional frame breakers with enhanced smart management capabilities, making it ideal for modern intelligent power distribution networks.

The CHW1-1600 3P 1600A Intelligent Frame Breaker is designed for modern power distribution systems that demand accuracy, visibility, and smart control. Built around a 3-phase electronic protection controller, it offers reliable low-voltage protection while supporting intelligent system management.

This breaker integrates precise overload and short-circuit protection with real-time electrical parameter monitoring, allowing users to clearly understand system operating conditions at a glance. The built-in digital display and push-button controls—including red stop and green start buttons—make daily operation intuitive, reducing the risk of misoperation during routine use or maintenance. A dedicated energy storage indicator further improves operational awareness and safety.

Designed for medium to large-scale power systems such as industrial plants, commercial buildings, and photovoltaic power stations, the CHW1-1600 supports stable operation under complex load conditions. Its modular structure allows for flexible configuration, including drawout or fixed installation, enabling seamless integration into existing power distribution setups.

ACB CHW1-2000 series air circuit breaker , designed for electrical system protection and control. Key components include: a fault reset button, breaking button, switching knob (for circuit control), energy storage handle, closing/opening indicator window (to show operating status), and energy release instruction window. It also features a digital display for real-time monitoring, making it suitable for medium-to-large power distribution systems (e.g., industrial, commercial facilities) requiring reliable overload/short-circuit protection and operational visibility.

The ACB CHW1-2000 series air circuit breaker is designed to provide reliable protection and precise control for modern electrical power distribution systems. Built for medium to large-scale applications, it supports stable operation in industrial plants, commercial facilities, and other demanding environments where safety and visibility are critical.

This series is equipped with a comprehensive set of operational components, including a fault reset button, breaking button, circuit switching knob, and an energy storage handle. Clear closing and opening indicator windows allow users to instantly confirm the operating status, while the energy release instruction window improves safety during operation and maintenance. These features help reduce misoperation and simplify daily system management.

A built-in digital display provides real-time monitoring of key electrical parameters, giving users greater awareness of system conditions and enabling faster response to abnormal situations. The breaker delivers dependable overload and short-circuit protection, supporting long-term equipment safety and system stability.

The CHW1-6300 3P ACB supports both drawout and fixed installation options, allowing flexible integration into different power distribution setups. With its robust design and intelligent operational visibility, the CHW1 series air circuit breaker is a dependable solution for modern power distribution systems requiring reliability, control, and adaptability.

Product Features

Suitable for common AC power distribution voltage environments, and can be flexibly applied to three-phase circuits with different voltage requirements. The circuit breaker's ability to withstand impulse voltages such as lightning strikes ensures equipment safety under transient high-voltage interference. In the event of a short-circuit fault, it can safely interrupt the maximum short-circuit current, effectively disconnecting the faulty circuit and protecting system equipment. It adopts a molded case structure, possessing good insulation performance and mechanical strength. Easy to operate, the "ON" indicator clearly shows the closed circuit state. It can effectively handle overload and short-circuit faults in power distribution lines, quickly disconnecting the circuit and protecting downstream electrical equipment. Widely used in low-voltage power distribution systems in industrial plants, commercial buildings, and other places, providing reliable protection for electrical safety and stable system operation.

Product Competitive Advantages
“Strong Interruption” Safety Guarantee: 35kA ultimate breaking capacity, capable of quickly interrupting strong short-circuit currents (such as equipment short circuits and line faults), preventing the fault from spreading to the entire power distribution system and protecting core equipment such as distribution cabinets and cables.
Intelligent Protection Logic: Integrated overload protection (10In tripping characteristic) + short-circuit protection, real-time monitoring of current anomalies:
Slow tripping during overload to avoid false tripping;
Instantaneous tripping during short circuit to cut off dangerous current.
Durable Molded Case Design: The casing uses high-strength insulating material, offering:
Excellent insulation: preventing leakage and creepage;
Mechanical strength: impact resistance and dustproof, suitable for complex power distribution environments (such as factory workshops and basements).
Typical Application Scenarios
Industrial field: Factory power distribution trunk lines, motor control circuits (such as fans and pumps), power supply protection for automated production lines;
Commercial buildings: Distribution boxes, central air conditioning, elevators and other large load power distribution in shopping malls and office buildings;
Infrastructure: Low-voltage power distribution systems in data centers and communication rooms, ensuring the power supply safety of core equipment such as servers and switches.

The CNXE CHM9-250L/3300 molded case circuit breaker, with its core features of 250A high current capacity and 35kA high breaking capacity, combined with reliable protection and durable design, provides a dual guarantee of “safe interruption + stable operation” for medium and large low-voltage power distribution systems, making it an efficient solution for industrial and commercial power distribution.

1. "Precise Protection" Thermal-Magnetic Trip Technology
During overload, the bimetallic strip slowly heats up and bends, triggering the circuit breaker to trip (sensitivity can be adjusted via Ir);
During a short circuit, the electromagnetic coil instantly engages, cutting off the circuit (Im sets the instantaneous protection threshold), balancing the needs of "preventing false tripping" and "fast disconnection".
2. "Multi-purpose" Multi-voltage Design
A single product covers 220V (household) → 380V (industrial) → 690V (high-voltage equipment), eliminating the need to stock multiple models for different voltages, reducing procurement and inventory costs.

It is compatible with common AC power distribution voltage environments and can be flexibly applied to three-phase circuits with different voltage requirements. The circuit breaker's ability to withstand surge voltages such as lightning strikes ensures equipment safety under instantaneous high-voltage interference. In the event of a short circuit fault, it can safely interrupt the circuit at the maximum short-circuit current value, effectively cutting off the faulty circuit and protecting system equipment. It adopts a molded case structure, possessing excellent insulation performance and mechanical strength. Operation is simple, with a clear "ON" indicator showing the closed circuit state. It can effectively handle overload and short-circuit faults in power distribution lines, quickly disconnecting the circuit and protecting downstream electrical equipment. It is widely used in low-voltage power distribution systems in industrial plants, commercial buildings, and other places, providing reliable protection for electrical safety and system stable operation.

Features: Covers 240V (residential) → 690V (industrial high voltage)
Precise electronic tripping control
Rated current range: 250~630A continuously adjustable (set via Micrologic 2.3 trip unit), suitable for current demands from "medium-load feeders" to "heavy-load busbars".

Electronic trip unit with three-stage protection:
Long delay (Ir): Slow tripping during overload, with adjustable threshold based on load characteristics (e.g., motor starting curve) to avoid false tripping;
Short delay (Isd): Delayed tripping during the initial stage of a short circuit (non-fatal current), prioritizing power supply to critical circuits and reducing the scope of power outages;
Instantaneous (Im): Instantaneous tripping during severe short circuits, quickly isolating faults and protecting equipment safety.
Compared to thermal-magnetic tripping: Electronic tripping offers a more precise protection curve and more flexible threshold adjustment (supporting complex settings such as 0.4~1 times Ir), suitable for special loads such as capacitor compensation cabinets and variable frequency motors.
Standards and Compatibility

International certification: Complies with both IEC/EN 60947-2 (EU/International) and NEMA AB1 (North America) standards, directly meeting the access requirements for multinational projects.
Frequency: 50/60Hz compatible, suitable for domestic and international power grids.

Product Competitive Advantages
1. Electronic tripping technology, self-adaptive to the environment: Automatically compensates for the impact of temperature on protection parameters (e.g., derating at 40℃), ensuring protection accuracy; Fault memory: Records the cause of the most recent trip (overload/short circuit), assisting maintenance personnel in quickly locating problems.

Core Advantages
Precise Protection: The thermal-magnetic circuit breaker supports adjustable overload and short-circuit thresholds, adapting to complex loads such as motor starting and main line power distribution, preventing false trips.
Multi-Voltage Compatibility: A single product covers 240V (residential) to 690V (industrial high voltage), reducing inventory and suitable for export/multinational projects.
Convenient Operation and Maintenance: A transparent window intuitively displays parameters, a TRIP button allows for one-click testing, and input/output terminals are clearly marked (1/3/5 for input, 2/4/6 for output).

Typical Scenarios
Industrial: Motor control (fans, pumps, adjusting Ir to match starting current);
Commercial: Power distribution in shopping malls and data centers (adapting to multi-floor voltage);
Export: Directly meets IEC standards and is compatible with overseas equipment.

Core Advantages:
Precise Electronic Protection: The Micrologic 3.3 trip unit supports three-stage protection: long-time overload, short-time short circuit/instantaneous protection, with flexible threshold adjustment, suitable for complex loads such as motors and capacitor banks.
Wide Voltage and High Current: A single product covers 240V~690V voltage and 800A rated current, meeting the needs of high-load scenarios such as industrial main lines and transformer secondary circuits.
Convenient Operation and Maintenance: A transparent window intuitively displays parameters, fault memory assists in troubleshooting, and a TRIP button allows for one-click testing of the protection function.

Typical Scenarios:
Industrial main power distribution (e.g., 690V motors, heavy equipment power supply);
Main line protection for large data centers and commercial complexes;
International engineering projects and export equipment (compliant with IEC standards, compatible with multiple regional power grids).
The CHM6-800N provides intelligent protection for high-load, complex power distribution systems with its precise electronic tripping control, 800A high current, and multi-voltage adaptability, suitable for industrial, commercial, and international project scenarios.

Core Advantages:
Strong Breaking Capacity: 50kA ultimate breaking capacity, quickly interrupting short-circuit faults and protecting the safety of the power distribution system.
Three-Phase Compatibility: The 3340 structure is compatible with three-phase circuits, with clear wiring terminals (top input, bottom output).
Intuitive Status Indication: Clear "ON/OFF" switching indicators, with a red indicator light for fault warning.
Dual-Mode Protection: Thermal tripping for overload protection and magnetic tripping for rapid short-circuit protection, providing bidirectional protection for lines and equipment;
Maximum Durability: Silver alloy contacts + flame-retardant casing, supporting over ten thousand breaking operations for long-term stable operation;
Flexible Installation: Rail-mounted design compatible with standard electrical cabinets, supporting drawer/fixed installation, adapting to different power distribution layouts.
Applicable Scenarios: Factory power distribution cabinets, commercial building HVAC systems, elevator power circuits, and front-end protection for photovoltaic inverters.
Certification: Complies with international/domestic electrical safety standards such as IEC 60947-2 and GB 14048.2. CE certified.
The CHM1-400L/3340 provides reliable thermal-magnetic protection for three-phase power distribution systems with its 400A high current capacity and 50kA high breaking capacity, suitable for core circuits in industrial and commercial applications.

The CHM1 series 3P plastic case circuit breaker, with a wide current range of 10A-1600A and a breaking capacity of up to 100kA, faces the harsh power challenges. We are not only a provider of standard products, but also your reliable backing, supporting deep customization and matching precise protection solutions for your system.
The CHM1 Series 3P Plastic Case Circuit Breaker is specifically designed to withstand harsh power conditions and demanding industrial environments. Covering a wide current range from 10A to 1600A and offering a breaking capacity of up to 100kA, it provides reliable protection against overloads, short circuits, and electrical faults. More than just a standard product, we position ourselves as your trusted partner, delivering deep customization services to match voltage, current, and breaking capacity requirements precisely. This flexibility ensures your electrical system operates safely and efficiently under even the most challenging conditions.

High-Capacity CE Certified MCCB

The 630A 3P Molded Case Circuit Breaker (MCCB) is CE certified, guaranteeing high-quality performance and adherence to international safety standards. Designed for industrial and commercial power distribution, it provides robust overload and short-circuit protection, ensuring your system’s stability and operational reliability. Combining advanced design with durable construction, this MCCB is ideal for professionals seeking flexible, dependable, and fully customizable electrical protection solutions. Together with the CHM1 series, it forms a comprehensive solution for modern power systems, offering safety, reliability, and performance in one package.