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  • DZ47-125 C63 4P Circuit Breaker 400V 63A Air Switch Quick View
    DZ47-125 C63 4P Circuit Breaker 400V 63A Air Switch
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    DZ47-125 C63 4P Circuit Breaker 400V 63A Air Switch

    DZ47-125 C63 4P Circuit Breaker 400V 63A Air Switch

    A 4-pole (4P) circuit breaker from Chengxi Electric's DZ47-125 series, with a rated current of 63A (Type C tripping curve) and compatible with 400V electrical systems. It features a breaking capacity of 7.5kA, complies with GB/T 14048.2 standards and EC008472 certification. Ideal for overload and short-circuit protection in residential and commercial power distribution systems, it comes with an easy-to-operate ON/OFF toggle switch and fits standard distribution boxes.
    The DZ47-125 C63 4P Circuit Breaker from Chengxi Electric is designed to provide dependable overload and short-circuit protection for low-voltage power distribution systems. Suitable for both residential and commercial applications, it supports stable operation in 400V electrical systems where safety and reliability are essential.

    Featuring a 4-pole (4P) configuration and a Type C tripping curve, this circuit breaker responds effectively to moderate inrush currents while maintaining consistent protection during normal operation. The rated current of 63A makes it well-suited for common distribution requirements, helping users manage power flow with confidence across everyday electrical installations.

    The breaker is built to comply with GB/T 14048.2 standards and holds EC008472 certification, reflecting its adherence to recognized safety and performance requirements. With a breaking capacity of 7.5kA, it is capable of handling typical fault conditions in residential and light commercial environments.

    Designed for practical use, the DZ47-125 series features a clear ON/OFF toggle switch that allows easy operation and quick status recognition. Its compact structure fits standard distribution boxes, enabling straightforward installation in new projects or system upgrades. The DZ47-125 C63 4P circuit breaker offers a reliable and user-friendly solution for modern power distribution needs.

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  • AC 220V Smart Energy Meter - Rail-Mounted, LCD Display, Remote Control Quick View
    AC 220V Smart Energy Meter - Rail-Mounted, LCD Display, Remote Control
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    AC 220V Smart Energy Meter - Rail-Mounted, LCD Display, Remote Control

    AC 220V Smart Energy Meter - Rail-Mounted, LCD Display, Remote Control

    The multi - functional Wlfl guide rall meter adopts a rail - type design, which is small in size, compact instructureand simple in installation: it uses an LCD display screento displav current,voltage,electricity, power.freauencland other electrical parameters, is convenient for users to acquire data and easy to operate. It hasgood antielectromaaneticinterference capabilities.meetsvarious needs otoowermanagement.facilitates therealizatiorof terminal - intelligent power metering, and faclitates the retrofitting of power meters in the lateltransformatiorof the lighting system. lt is widely used in commercial squares,science and technology parksuniversities another occasions where biling is reguired, it can also be iointly deploved with energyconsumption monitorinaand energy management systems. its application scope includes property bilingmanagement, electricity meteringnower demand . side manadement, enerav consumotion management andenergy-saving analysis, iner lowvoltage power systems, etc.
    The Wlfl multi-functional rail-mounted energy meter is a compact, easy-to-install solution designed for modern energy management. Featuring a clear LCD display, it provides real-time readings of voltage, current, power, frequency, and other essential electrical parameters, allowing users to monitor energy usage conveniently and accurately. Built with strong anti-electromagnetic interference capabilities, it ensures reliable operation even in complex electrical environments.

    This smart energy meter is ideal for a wide range of applications, including commercial buildings, shopping centers, technology parks, universities, and other locations where precise energy monitoring and billing are required. It supports terminal intelligent power metering and can be easily integrated with advanced energy management systems, helping businesses and facilities optimize electricity usage and reduce operational costs.

    Additionally, the meter is perfect for property billing management, electricity demand-side management, energy consumption monitoring, and energy-saving analysis within low-voltage power systems. Its rail-mounted design simplifies installation and retrofitting, especially in existing lighting and electrical systems, while remote control functionality enhances operational flexibility.

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  • KWS-303 Series Din Rail Energy Meter (WiFi/RS485) - Voltage/Current/KWh Monitor with Protection Quick View
    KWS-303 Series Din Rail Energy Meter (WiFi/RS485) - Voltage/Current/KWh Monitor with Protection
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    KWS-303 Series Din Rail Energy Meter (WiFi/RS485) - Voltage/Current/KWh Monitor with Protection

    KWS-303 Series Din Rail Energy Meter (WiFi/RS485) - Voltage/Current/KWh Monitor with Protection

    These are din rail energy meters with AC 85-290V 0-40A 0-12KW range They can track voltage current kWh and temperature and have features like over and under voltage protection overtemp protection power-off memory The WiFi model supports app remote control and timing functions They are ideal for home and commercial energy management
    The KWS-303 Series DIN rail energy meters are designed for reliable home and commercial energy management. Supporting AC 85–290V and 0–40A with a power range of 0–12KW, these meters accurately monitor voltage, current, kWh, and temperature. Key protection features include over-voltage and under-voltage protection, over-temperature protection, and power-off memory, ensuring safe and stable operation.

    The WiFi-enabled model allows remote monitoring and control via a mobile app, including scheduling and timing functions, providing convenience and real-time energy insights. With RS485 communication support, these meters can integrate seamlessly into advanced energy management systems for enhanced monitoring and analysis.

    Compact and easy to install on standard DIN rails, the KWS-303 Series offers an efficient, reliable, and smart solution for optimizing energy usage, reducing costs, and ensuring safety in residential, commercial, and industrial environments.

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  • Tuya WiFi Smart Overvoltage/Undervoltage Protector (JWGK-63) - Din Rail Energy Meter with Leakage Protection Quick View
    Tuya WiFi Smart Overvoltage/Undervoltage Protector (JWGK-63) - Din Rail Energy Meter with Leakage Protection
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    Tuya WiFi Smart Overvoltage/Undervoltage Protector (JWGK-63) - Din Rail Energy Meter with Leakage Protection

    Tuya WiFi Smart Overvoltage/Undervoltage Protector (JWGK-63) - Din Rail Energy Meter with Leakage Protection

    This Tuya WiFi smart protector (model JWGK-63) combines overvoltage/undervoltage/current protection, auto-reclosing, and energy monitoring (voltage/current/kWh). Supports 2.4G WiFi, remote control via Tuya App, adjustable tripping thresholds, and timing functions. AC 130-300V, 0.01-63A range, 1% accuracy. Din rail mountable for home/commercial energy management & electrical safety.
    The JWGK-63 Tuya WiFi Smart Protector is a versatile solution for home and commercial energy management, combining overvoltage, undervoltage, and overcurrent protection with advanced energy monitoring. It accurately measures voltage, current, and kWh with 1% precision and supports AC 130–300V and 0.01–63A ranges.

    Equipped with auto-reclosing, adjustable tripping thresholds, and timing functions, this smart protector ensures reliable electrical safety while preventing equipment damage. The 2.4G WiFi connectivity allows seamless remote control and monitoring via the Tuya App, giving users real-time insights and convenience. Designed for DIN rail mounting, the JWGK-63 integrates easily into modern electrical systems and smart energy setups.

    Ideal for residential, commercial, and small industrial applications, this device provides efficient energy monitoring, enhanced protection, and intelligent management, helping reduce energy waste and maintain a safe electrical environment.

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  • WiFi intelligent leakage circuit breaker Quick View
    WiFi intelligent leakage circuit breaker
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    WiFi intelligent leakage circuit breaker

    WiFi intelligent leakage circuit breaker

    The WiFi Intelligent Leakage Circuit Breaker, also known as a smart RCBO, is a next-generation electrical safety device that integrates residual current protection, overload protection, and short-circuit protection with advanced IoT technology. Unlike traditional leakage circuit breakers, this intelligent solution combines “personal electric shock protection” and “circuit overload/short-circuit protection” with smart monitoring features, enabling safer, more efficient energy management.

    Equipped with WiFi, Bluetooth, and 4G communication, the smart RCBO allows real-time remote monitoring, intelligent alerts, and automated linkage control through mobile apps or building management systems. Users can instantly detect abnormal currents, leakage events, or overloads, ensuring rapid response and minimizing the risk of electrical accidents. Adjustable tripping thresholds and auto-reclosing functions provide additional protection and operational flexibility.

    Ideal for homes, commercial buildings, and industrial facilities, the WiFi intelligent leakage circuit breaker is designed to simplify installation while delivering comprehensive protection. Its compact, DIN rail-mountable design makes retrofitting in existing electrical panels easy, while its smart features support energy optimization, remote management, and predictive maintenance.

    By combining traditional RCBO functionality with smart IoT monitoring, this intelligent leakage circuit breaker not only protects people and equipment from electrical hazards but also supports modern smart building applications, energy-saving initiatives, and enhanced electrical system management.

    Upgrade your electrical safety system with the WiFi Intelligent Leakage Circuit Breaker – a reliable, efficient, and connected solution for comprehensive protection, real-time monitoring, and intelligent energy management.

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  • 6L2 Series 450V Analog Voltage & Current Ammeter for Power Distributionammeter Quick View
    6L2 Series 450V Analog Voltage & Current Ammeter for Power Distributionammeter
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    6L2 Series 450V Analog Voltage & Current Ammeter for Power Distributionammeter

    6L2 Series 450V Analog Voltage & Current Ammeter for Power Distributionammeter

    Check the power supply: Check if the battery and power adapter are charged and if the voltage is normal.

    Fault diagnosis: By measuring the voltage of key points in the circuit, quickly locate electrical and electronic equipment faults (such as open circuit, short circuit, component damage).

    Monitoring status: Real-time monitoring of voltage stability during equipment operation or experimental processes.
    The 6L2 Series 450V Voltmeter is engineered for precise and dependable voltage measurement in industrial and laboratory environments. With an external dimension of 80 × 80 mm and a panel cutout size of 76 × 76 mm, it is easy to install into standard control panels and distribution cabinets. This voltmeter helps users check power supply conditions by verifying battery status, power adapter performance, and overall voltage stability. By measuring voltage at key circuit points, it supports effective fault diagnosis, allowing quick detection of open circuits, short circuits, or component failures. It also enables real-time voltage monitoring during equipment operation or testing processes.

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  • 6L2 Series 600A Analog Voltage & Current Ammeter for Industrial Panels Quick View
    6L2 Series 600A Analog Voltage & Current Ammeter for Industrial Panels
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    6L2 Series 600A Analog Voltage & Current Ammeter for Industrial Panels

    6L2 Series 600A Analog Voltage & Current Ammeter for Industrial Panels

    The 6L2 series 600A ammeter is designed for clear and reliable current measurement in electrical control and power distribution systems. With dimensions of 80 × 80 mm and a panel cutout size of 76 × 76 mm, it can be easily installed in standard panels and distribution cabinets. The analog dial directly indicates the current flowing through the circuit with a precise pointer position, allowing operators to read the value at a glance. Furthermore, the smooth and continuous movement of the pointer intuitively reflects the trend of current changes, clearly showing the direction, speed, and fluctuations of the current during operation.

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  • 6L2 Series 1500A Analog Voltage & Current Ammeter for Heavy Load Systems Quick View
    6L2 Series 1500A Analog Voltage & Current Ammeter for Heavy Load Systems
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    6L2 Series 1500A Analog Voltage & Current Ammeter for Heavy Load Systems

    6L2 Series 1500A Analog Voltage & Current Ammeter for Heavy Load Systems

    The 6L2 Series 1500A Ammeter delivers robust, high-current monitoring for heavy-duty electrical systems. Designed for panel mounting with an outer size of 80 × 80 mm and a cutout of 76 × 76 mm, it fits neatly into industrial switchboards. A crisp analog dial and a responsive pointer give immediate, easy-to-read current values for quick on-site checks. More than a static gauge, the pointer’s fluid movement exposes real-time current behavior—showing change direction, speed, and transient swings at a glance. Built for rugged use and simple operation, the 6L2 1500A is an excellent choice for technicians and system integrators who need reliable visual current indication.

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  • 6L2 Series 500A Analog Voltage & Current Ammeter for Power Systems Quick View
    6L2 Series 500A Analog Voltage & Current Ammeter for Power Systems
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    6L2 Series 500A Analog Voltage & Current Ammeter for Power Systems

    6L2 Series 500A Analog Voltage & Current Ammeter for Power Systems

    The 6L2 Series 500A Ammeter is a practical solution for accurate current indication in electrical panels and power control systems. Designed with a standard 80 × 80 mm front dimension and a 76 × 76 mm mounting cutout, it allows fast installation and clean panel integration. The analog scale provides clear visibility of the current level, enabling operators to assess circuit load conditions quickly. Its responsive pointer movement makes it easy to observe gradual or sudden changes in current, helping users understand operating trends and system behavior. Suitable for routine monitoring, the 6L2 500A ammeter offers stable performance and intuitive visual feedback in daily applications.

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  • 99T1 Series Digital Voltage & Current Ammeter for Panel Monitoring Quick View
    99T1 Series Digital Voltage & Current Ammeter for Panel Monitoring
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    99T1 Series Digital Voltage & Current Ammeter for Panel Monitoring

    99T1 Series Digital Voltage & Current Ammeter for Panel Monitoring

    The 99T1 Series Ammeter is a compact and efficient instrument designed for precise current monitoring in space-limited electrical installations. Featuring a small 48 × 48 mm front dimension and a 45 × 45 mm panel cutout, it is ideal for dense control panels and miniature distribution boxes. The clear analog dial allows users to read current values quickly, supporting effective supervision of circuit load conditions. With smooth pointer response, the meter helps visualize current behavior during normal operation or load changes. The 99T1 series combines compact design with reliable performance, making it suitable for applications where space efficiency and clear indication are essential.

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  • Multi functional digital display table Quick View
    Multi functional digital display table
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    Multi functional digital display table

    Multi functional digital display table

    An intelligent instrument that integrates measurement, display, and communication, serving as the "data front-end" for industrial automation and energy management. Real-time monitoring and digital display of various power or process parameters, converting raw signals into readable data and communicable information, is the "monitoring window" for equipment and system status.
    advantage
    Highly integrated: replaces multiple pointer meters, saves cabinet space, and achieves centralized monitoring.
    Intuitive information: Directly display key calculation results (such as power and electrical energy) without the need for manual conversion.
    Communicable: Achieving remote data transmission is the foundation for building smart grids, the Internet of Things, and energy management systems.
    Flexible configuration: One instrument can adapt to different transformer ratios or sensor types through settings.
    The Multi-Functional Digital Display Table is an intelligent measuring device designed as a data front end for industrial automation and energy management systems. With a compact size of 54 × 80 × 64 mm, it fits easily into modern control cabinets while delivering powerful functionality. The instrument integrates measurement, digital display, and communication, providing real-time monitoring of electrical or process parameters and transforming raw signals into clear, readable data. Its high level of integration reduces the need for multiple analog meters, saving space and enabling centralized monitoring. Communication capability supports remote data transmission, while flexible configuration allows adaptation to different transformer ratios or sensor types through simple settings.

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  • GN27-40.5 Indoor High Voltage Isolation Switch Quick View
    GN27-40.5 Indoor High Voltage Isolation Switch
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    GN27-40.5 Indoor High Voltage Isolation Switch

    GN27-40.5 Indoor High Voltage Isolation Switch

    The GN27-40.5 series indoor high-voltage isolation switch is used in a three-phase power system with a rated voltage of 35kV and AC 50Hz, as a means of connecting and converting lines when there is voltage but no load. This product is equipped with a CS6-2 type manual operating mechanism, and when equipped with D, it is equipped with CS6-I type manual operating mechanism.                                                

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Chengxi Electric Group Co., Ltd.

Chengxi Electric Group Co., Ltd.

Chengxi Electric Group Co., Ltd. is a Intelligent Universal Circuit Breaker Manufacturer and OEM Insulated Case Circuit Breaker Supplier . Equipped with modern industrial factory buildings and office facilities, we specialize in the production and operation of circuit breakers, dual power supplies (ATS), AC contactors, and other modern low-voltage electrical products. The company implements a complete and scientific quality management system. Through good faith and strong technical capabilities, our products have earned widespread recognition in the industry. ChengXi Electric adheres to a management philosophy of "Integrity, Pragmatism, Science, Rigor, and Solidarity," always focusing on customer needs and dedicated to the field of low-voltage electrical equipment. Relying on the power system and driven by market demands, ChengXi Electric has provided high-quality products and services to a diverse range of users over the years. We continue to expand our market presence, and our products are widely used in numerous domestic sectors, including electric power systems, nuclear power, national defense, petrochemicals, metallurgy, coal, railways, and more. They play a vital role in many national key projects, winning the trust of a growing number of customers and achieving an excellent reputation within the industry.

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Industry Knowledge Extension

What Circuit Problems Can the Intelligent Universal Circuit Breaker Solve?

Addressing Overload and Short-Circuit Conditions

By continuously monitoring current flow, it detects when electrical demand exceeds safe limits. Instead of relying solely on thermal or magnetic triggers, the intelligent breaker uses microprocessor-based algorithms to analyze data and respond more accurately. In addition, it protects against short circuits—sudden high-current faults that can damage equipment or cause fires. The intelligent system reacts quickly, downtime and preventing damage to wiring and connected devices.

Managing Power Quality and System Communication

Voltage fluctuations, harmonics, and imbalance between phases can reduced equipment lifespan. The intelligent circuit breaker monitors these parameters and communicates data to control systems for corrective actions. Its communication interface—often integrated with smart building systems—enables remote monitoring and diagnostics. This allows maintenance personnel to identify and address potential problems before they escalate. Overall, the IUCB enhances energy management, safety, and operational reliability, making it a vital component in modern electrical infrastructures.

What Is the Main Function of an Insulated Case Circuit Breaker?

Designed for High-Capacity Electrical Protection

An Insulated Case Circuit Breaker (ICCB) serves as a protective device for medium and large-scale electrical installations. Its main function is to safeguard electrical circuits from overloads, short circuits, and equipment failures. Unlike smaller molded case breakers, the ICCB is built to handle higher current ratings, typically ranging from 400A to several thousand amperes. The “insulated case” design refers to the structure that separates live components, providing extra protection and ensuring reliable operation even in harsh environments.

Comprehensive Overcurrent and Fault Interruption

The ICCB operates by automatically disconnecting the circuit when abnormal conditions occur. It employs both thermal and magnetic trip elements to detect different fault types. For instance, a sustained overload causes heat buildup, which triggers the thermal element, while an instantaneous short circuit activates the magnetic release. These combined mechanisms protect electrical distribution systems from damage, preventing hazards such as insulation failure, equipment burnout, or electrical fires.

Flexibility and Integration with Modern Systems

A key advantage of insulated case breakers is their customization and modular design. Many models come with adjustable trip settings and digital protection relays, allowing engineers to tailor performance to specific applications. They can also integrate with building automation systems, providing feedback on power consumption and breaker status. This intelligent coordination reduces unnecessary tripping and enhances continuity of service. Ultimately, the main function of an insulated case circuit breaker is not just protection—it also contributes to improved energy efficiency and system reliability across industrial and commercial facilities.

What Are the Common Types of Safety Circuit Breakers?

Protecting Homes and Businesses from Electrical Risks

Safety circuit breakers are essential devices used to prevent electrical accidents and equipment damage. Their role is to interrupt current flow when faults occur, thereby safeguarding people and property. There are several common types, each designed to handle specific protection needs and electrical environments.

Miniature Circuit Breaker (MCB)

The Miniature Circuit Breaker is one of the widely used safety breakers. It is designed for low-voltage applications, typically found in residential and small commercial systems. The MCB protects against overloads and short circuits, automatically cutting off the current when safe limits are exceeded. It is compact, reliable, and easy to reset, making it an ideal replacement for traditional fuses.

Residual Current Circuit Breaker (RCCB)

Another important type is the Residual Current Circuit Breaker, which focuses on protecting people from electric shock. It detects differences between live and neutral current flow, indicating leakage through unintended paths, such as a person’s body or faulty insulation. When such a fault is detected, the RCCB disconnects the power almost instantly, injury risks and preventing electrical fires caused by leakage currents.

Molded Case Circuit Breaker (MCCB)

For larger electrical systems, the Molded Case Circuit Breaker provides higher current ratings and adjustable protection settings. It combines overload, short-circuit, and earth fault protection in a single device. MCCBs are used in commercial and industrial installations where more precise control and durability are required.

Air and Earth Leakage Circuit Breakers

In addition to MCBs and RCCBs, Air Circuit Breakers (ACBs) are used for high-capacity protection in power distribution systems, while Earth Leakage Circuit Breakers (ELCBs) detect and interrupt current leakage to the ground. Both types enhance safety in complex electrical environments.

Ensuring a Safe Electrical Network

Selecting the right safety circuit breaker depends on the voltage level, load capacity, and safety requirements of a system. Whether in homes, offices, or factories, these breakers play a vital role in ensuring uninterrupted, hazard-free electrical operation.