Intelligent Universal Circuit Breaker Manufacturer

The DZ47LE series residual current circuit breaker has the characteristics of complete structure, reliable performance, high breaking capacity, and beautiful and compact appearance. The shell and main components are made of impact resistant and highly flame-retardant materials. Suitable for places with AC 50Hz or 60Hz, rated working voltage of 400V and below, and rated current of 6A to 63A.

Purpose and Features
The DZ47LE-63 standard small residual current circuit breaker is a widely applicable grounding fault protection device, which can provide protection products with different action values such as 30mA and 50mA according to different protection needs. Due to the use of fog sequence current transformers and integrated amplification circuits, the sensitivity of the protective circuit breaker is quite high. It can detect ground fault currents, which can significantly reduce the risk of fire and electric shock. The DZ47LE-63 standard small residual current protection circuit breaker can achieve:
Provide personal protection for indirect contact
Provide supplementary personal protection for direct contact
Provide protection against insulation faults in electrical equipment

The DZ47LE series residual current circuit breaker has the characteristics of complete structure, reliable performance, high breaking capacity, and beautiful and compact appearance. The shell and main components are made of impact resistant and highly flame-retardant materials. Suitable for places with AC 50Hz or 60Hz, rated working voltage of 400V and below, and rated current of 6A to 63A.

Purpose and Features
The DZ47LE-63 standard small residual current circuit breaker is a widely applicable grounding fault protection device, which can provide protection products with different action values such as 30mA and 50mA according to different protection needs. Due to the use of fog sequence current transformers and integrated amplification circuits, the sensitivity of the protective circuit breaker is quite high. It can detect ground fault currents, which can significantly reduce the risk of fire and electric shock. The DZ47LE-63 standard small residual current protection circuit breaker can achieve:
Provide personal protection for indirect contact
Provide supplementary personal protection for direct contact
Provide protection against insulation faults in electrical equipment

Product Description
This 4P surge lightning protection device supports an ultra-large current capacity of 40kA/60kA, capable of instantly discharging strong surges generated by lightning strikes and grid fluctuations.
High-quality zinc oxide varistors (MOV) are adopted, featuring low leakage current and anti-aging properties. Combined with temperature control circuit breaker and overcurrent protection, the module will automatically trip when it overheats or fails, completely eliminating the risk of fire.
It is equipped with built-in status indicator lights. Some models support remote alarm terminals and can be connected to the monitoring system to provide real-time feedback on the working status.

Differentiated selling points
It simultaneously protects against three-phase live wires (L1/L2/L3) and neutral wires (N), covering 380V three-phase systems, and is particularly suitable for three-phase loads such as industrial equipment and photovoltaic inverters.
The modular design allows faulty modules to be directly plugged and unplugged for replacement without cutting off the main power supply, reducing the risk of downtime.

Product Description
This is a dual power automatic transfer switch (ATS) used to automatically/manually switch between common power supply and backup power supply, ensuring continuous power supply to the load. Suitable for important scenarios such as firefighting, elevators, and medical facilities where power outages are not allowed.

Core functions
1.Auto Switch
When in the "Auto" mode, monitor the voltage/frequency of the commonly used power supply in real time. When the commonly used power supply fails (voltage loss, undervoltage, phase loss), automatically switch to the backup power supply; After the common power supply is restored, it will automatically switch back.
2.Manual switch
When in the "Manual" position, manually select "Common Power (A)", "Backup Power (B)" or "Off" through the red knob.
3.status indicator
Red light on: The current power supply is the common power supply (A);
Green light on: The current power supply is a backup power supply (B);
Icon identification: "Tower" represents common power supply (mains), and "Generator" represents backup power supply.

Precautions
Prohibit frequent switching (automatic interval ≥ 30 seconds, manual interval ≥ 10 seconds);
Regularly (quarterly) test the automatic switching function and check if the wiring terminals are loose;
Only applicable to the marked voltage/current range, to avoid overload.

 Product Description:
1. Core protection capability
Overload protection: Equipped with a built-in thermal magnetic trip system, it accurately senses the overload current of the circuit. When the current continues to exceed the rated value, the thermal element slowly heats up and triggers the trip, avoiding long-term overheating and aging of the circuit;
Short circuit protection: The electromagnetic trip module responds in milliseconds (≤ 0.1s), instantly disconnects when the short-circuit current reaches the threshold, blocks the spread of arc, and prevents serious accidents such as distribution box burning and equipment explosion;
Optional extended protection: Some models support under voltage, over voltage, and ground fault protection, suitable for precision equipment with high power supply quality requirements (such as PLC, frequency converter).
2. Industrial grade durability
Contact system: using silver alloy contacts, wear-resistant and arc resistant, with a breaking frequency of over 10000 times, and long-term high-frequency operation without failure;
Shell material: flame-retardant engineering plastic, impact resistant, high temperature resistant (able to withstand short-term high temperatures of 120 ℃), suitable for complex environments such as factory workshops and outdoor distribution boxes;
Sealed design: IP30 protection level, dust-proof and splash proof, to prevent dust and water vapor from entering the interior and causing short circuits.

 User Value
Cost reduction: Avoid equipment burnout and production line shutdown caused by short circuits/overloads, and reduce maintenance and shutdown losses;
Worry free: industrial grade durability+multiple protections, no need for frequent maintenance, long-term stable operation;
Compliance: Complies with national standards such as GB/T 14048.2 and meets the requirements of power distribution specifications for industrial safety production.

Installation and maintenance recommendations
Before installation, confirm that the voltage/current of the circuit matches the parameters of the circuit breaker, and the three-phase wiring should correspond to the phase sequence;
The drawer type model should ensure that the drawer is in close contact with the cabinet to avoid virtual connection and heat generation;
Check the contacts and wiring terminals every six months, clean the dust, and avoid excessive contact resistance;
After short circuit breaking, the contact status should be checked, and if there is erosion, it should be replaced in a timely manner.

Technical details:
 
This molded case circuit breaker is designed specifically for high load industrial/commercial distribution scenarios, using a thermal magnetic trip structure to achieve precise overload protection at 100A rated current and a maximum short-circuit breaking capacity of 50kA. Suitable for 400V three-phase circuits, the IP30 protective casing can withstand dust/splash erosion in complex environments such as workshops and computer rooms.

Core advantages:
Dual mode protection: Hot trip responds to overload, magnetic trip quick break short circuit, and bidirectional protection of lines and equipment;
Durability fully extended: silver alloy contacts+flame-retardant shell, supporting over 10000 breaking operations, ensuring long-term stable operation;
Flexible installation: The rail type design is compatible with standard electrical cabinets, supports drawer/fixed installation, and adapts to different distribution layouts.
Applicable scenarios: Factory distribution cabinets, commercial building HVAC systems, elevator power circuits, photovoltaic inverter front-end protection.
Certification: Complies with international/domestic electrical safety standards such as IEC 60947-2 and GB 14048.2. CE certification

1、 Product Description
Molded case circuit breaker is a low-voltage protection device used to cut off overload and short-circuit fault currents in electrical systems. Its core components are encapsulated in a flame-retardant insulating plastic shell, which combines a sturdy structure and precise protection mechanism, suitable for medium to high current circuits in industrial, commercial, and critical infrastructure scenarios

2、 Core Components and Working Principles
MCCB responds to different types of faults through a hybrid protection mechanism:
Thermal magnetic release unit (standard configuration):
Thermal element: Adopting a bimetallic structure, when continuously overloaded, the bimetallic plate deforms due to temperature rise, triggering delayed tripping (inverse time characteristic: the larger the overload current, the faster the tripping action), which can avoid false tripping caused by motor starting surge current.
Electromagnetic component: Built in electromagnetic coil. In the event of a short circuit fault, the instantaneous increase in current will cause the coil to generate a strong magnetic field, driving the trip mechanism to cut off the circuit in milliseconds and quickly extinguish the arc.
Electronic release unit (advanced configuration):
By collecting circuit current signals through current transformers and comparing them with preset protection curves (overload long delay, short circuit short delay, instantaneous trip) through microprocessors, more accurate three-stage protection can be achieved, and trip parameters can be adjusted as needed.

3、 Key technical parameters
Rated current: The maximum current that the equipment can operate stably for a long time, typically covering 63A to 1600A
Short circuit breaking capacity:
Rated ultimate short-circuit breaking capacity: The maximum short-circuit current that a circuit breaker can withstand (only breaking once, no need to continue using).
Rated short-circuit breaking capacity: the ability to operate normally after breaking the short-circuit current, usually
50% -75% of Icu.
Protection level: commonly IP20 (finger touch resistant) to IP65 (dustproof and waterproof), suitable for different environmental requirements.

4、 Typical application scenarios
Industrial field: Protect high-power equipment such as motors, frequency converters, and machine tools to avoid equipment damage caused by overload/short circuits.
Commercial buildings: used for main protection of medium power circuits such as distribution panels and air conditioning systems.
Key infrastructure: Data centers, hospitals, and other places achieve remote monitoring and selective protection through intelligent MCCBs, reducing large-scale power outages caused by local failures.

The CHM1 series is specifically designed for medium and high voltage circuits and is the core protective equipment for industrial and commercial high-power scenarios: It supports dual voltages of AC400V/690V, with a rated current of 250A, suitable for high-load scenarios. Its 50kA short-circuit breaking capacity combined with overload/surge dual protection; 8kV insulation shock + flame-retardant casing can operate stably at +40℃, with excellent durability; prominent on-off indicators, standard rail installation, and compatibility design for large cross-section cables, make operation and maintenance more convenient. This product is suitable for industrial power equipment, commercial high-power appliances, and infrastructure power distribution circuits, etc. It is a highly adaptable solution for "high load + strong protection + long lifespan" in high-current scenarios, capable of addressing the pain point of insufficient capacity of small-sized circuit breakers, and providing reliable circuit protection for industrial and commercial users.

The CXB7 series of miniature circuit breakers is the core of safety protection for low-voltage circuits in households and businesses. It offers multiple pole specifications including 1P, 2P, and 3P, allowing for flexible adaptation to different circuits such as lighting, sockets, and household appliances based on the number of phase wires. It enables independent protection for single or multiple circuits, preventing local faults from affecting the overall power supply. The rated current of these breakers covers the range of regular loads and adopts a thermal-magnetic dual-break design. During overload conditions, it provides protection for the line through a dedicated component with a slow response, and during short-circuit conditions, the electromagnetic structure instantly cuts off the fault, featuring strong breaking capacity, stable protection, and rapid response. Additionally, it is equipped with a high-grade flame-retardant housing and anti-misoperation terminals to reduce safety risks. The mechanical durability is excellent, making it unlikely to be damaged during long-term operation. It comes with a status indicator light to clearly display the operation status of the circuit. It also supports universal standard rails for tool-free installation, is compatible with various specifications of single or multiple cables, and makes the construction and debugging process more efficient. This product is suitable for various circuit circuits in households, commercial branch lighting, and circuits of small office equipment. It is a "flexible choice" for circuit protection in low-voltage circuits, providing multi-pole adaptation, reliable protection, and convenient installation, offering high-performance, high-adaptability security guarantees for households and businesses.

The CNXE CXB8 series (including the CXB8LE leakage protection model) of miniature circuit breakers are the core of "safety dual protection" for household and commercial low-voltage circuits. They cover two versions: the basic model focuses on overload and short-circuit protection, while the leakage model adds an leakage monitoring function to quickly cut off the leakage circuit, suitable for high-safety scenarios; it also supports multi-pole specification selection, which can match the phase wire configuration of different circuits such as lighting and sockets, achieving independent protection for single or multiple circuits to avoid local faults affecting the overall power supply.
It adopts a dedicated dual-decoupling structure, with a slow response during overload and a instantaneous break during short circuit, and is equipped with high-grade breaking capacity to ensure safety. The leakage model can also accurately identify tiny leakage signals. The high flame-retardant housing + anti-misoperation terminals reduce risks, have strong durability for long-term operation, and come with a status indicator light to make the circuit status clear at a glance. Moreover, it is compatible with universal rails for tool-free installation, supports connections of multiple specifications of cables, and enables efficient and effortless construction and debugging.
This product is suitable for different circuit areas in households, commercial branch lighting, and office equipment protection. It is an "all-round protection choice" for low-voltage circuits, providing dual versions, multi-pole compatibility, and dual-dimensional protection, taking into account both basic and leakage safety needs, and offering high compatibility and reliability of power supply for households and businesses.

The leakage protection circuit breaker is a "leakage protection device" specifically designed for households and commercial environments with high humidity or high-risk electricity usage. It integrates overload / short-circuit protection and leakage protection, meeting the high safety requirements of different circuits: In addition to basic protection, it adds an accurate leakage monitoring function, which can quickly cut off minor leakage circuits, eliminating the risk of electric shock at the source, suitable for damp and high-risk scenarios such as those with many people. At the same time, it offers multiple pole and multiple current specifications for selection, capable of matching the loads and phase line configurations of different circuits, achieving independent protection for single or multiple paths to prevent the spread of faults.
This product is equipped with a monthly test button to regularly verify the leakage function. Its high flame-retardant casing and anti-misoperation terminals reduce risks, and it comes with a clear status indicator to clearly display the circuit status. It also supports universal rails for tool-free installation, supports connections of multiple specifications of cables, and is compatible with most distribution box layouts, making maintenance efficient and effortless.
It is suitable for damp areas in households, commercial kitchen equipment, office public sockets, etc., and is a "necessary safety product" for high-risk electricity usage scenarios. With dual protection, multi-specification compatibility, and detailed safety design, it builds an electricity safety defense line for household and commercial users.

The CHX1-40 surge protector is the "core anti-electricity shock and anti-interference component" of the power distribution system. It is specifically designed to suppress lightning strikes and grid pulses, which are overvoltage shocks. It meets the anti-interference requirements of various circuit scenarios. It has a maximum current capacity of 40kA and a rated current capacity of 20kA. It can effectively absorb instantaneous overvoltages and control the residual voltage within 2.0kV, preventing equipment from being damaged by surges. It adopts a 4-module combined design, compatible with 420V AC systems, and compatible with mainstream power distribution architectures such as three-phase four-wire. It can flexibly match different scale circuit protection needs.
It is equipped with an operating status indicator light to display the working status in real time, and is combined with grounding warnings to ensure the stability of anti-electricity shock. At the same time, it is compatible with standard rail installation and can be embedded in distribution boxes and circuit breakers to work collaboratively. The construction is simple and space-saving. It is suitable for scenarios such as building entry power distribution, commercial facility circuits, and industrial precision equipment circuits. It is a "must-have model" for anti-electricity shock and anti-interference in power distribution systems. With strong current capacity, multi-adaptability, and safe visibility design, it builds a surge protection defense line for various scenarios, avoiding equipment overvoltage damage and improving circuit stability.