Moulded Case Circuit Breaker Manufacturer

The CHM1 series enclosure-type circuit breaker (hereinafter referred to as the circuit breaker) is a new type of circuit breaker developed using our company's manufacturing technology. This high-performance low-voltage protection device features a high-quality engineering plastic housing and a modular design. It features a compact structure, high breaking capacity, and precise protection. It provides comprehensive protection against overload and short circuits, and is available with a wide range of optional accessories. It is widely used in building power distribution, industrial control, and motor protection.

Product Features:
Standards Compliant
GB/T14048.1 General
GB/T14048.2 Circuit Breakers
IEC 60947-1 General
IEC 60947-2 Circuit Breakers

Ambient Temperature
The series can operate for extended periods within normal ambient and operating temperatures between -5°C and 40°C.
For operating temperatures exceeding 40°C (over 60°C for motor protection), derating should be applied or contact us.
Storage temperature range: -20°C to 70°C.

Altitude
·The normal operating installation altitude must not exceed 2000m.
·If installation is required at an altitude exceeding 2000m, changes in dielectric strength and decreases in air temperature must be considered. Refer to the altitude derating factor table.

Protection Degree
·The circuit breaker body has an IP protection rating of IP20.
·Circuit breakers installed in switchgear:
Circuit breakers with toggle handles: IP40
Circuit breakers with electric operating mechanisms: IP40

Pollution Degree
The product operates in pollution degree 3 environments (industrial environments) as defined in IEC 60947-1 and 60664-1.

Humidity
During normal operation, the product must meet the following requirements:
·At an ambient air temperature of +40°C, the relative humidity must not exceed 50%. Higher relative humidity conditions are acceptable at lower temperatures.
·The average relative humidity in the wettest month is 90%.
·The impact of condensation on the product surface on product performance must be considered.

Reliable contact indication with isolation function
· All molded case circuit breakers in this series comply with the isolation requirements defined in IEC standard 60947-2.
· The isolation position corresponds to the O (OFF) position.
· The operating handle indicates the "OFF" position only when the contacts are actually open.
· Rotating the handle or electric operating mechanism does not alter the reliability of the contact indication system. After testing, the Isolation function must ensure:
· Mechanical reliability of the contact indication system
· No leakage current
· A certain overvoltage withstand capability between the input and output terminals.

The CHM1LE series molded case residual current circuit breaker is a high-performance electrical protection device widely used in residential, commercial, and industrial environments.

Key Selling Points:
- Safety: Rapid leakage protection reduces the risk of electric shock.
- High Reliability: Made of durable materials, stable operation, and low failure rate.
- Easy Installation and Maintenance: Compact design facilitates integration and routine maintenance.
- Multifunctional Protection: Integrated overload and short-circuit protection provides comprehensive electrical safety.
- Durability: Impact-resistant plastic housing, corrosion-resistant, and long life.
- Energy Saving and Environmental Protection: Optimized design reduces energy consumption.
- Wide Adaptability: Suitable for various voltage and current environments.
- Easy Operation: User-friendly interface, easy to understand.
- Certification Guarantee: Strict certification guarantees safety and quality.

The CHM1LE series molded case residual current circuit breaker, with its excellent performance and wide application, is an ideal choice for electrical safety.

The CHM1E series electronic molded case circuit breakers (hereinafter referred to as circuit breakers) are suitable for AC 50Hz/60Hz operation. They have a rated insulation voltage of 800V, a rated working voltage of 690V and below, and a rated working current of 16 to 800A. They are designed for non-frequent switching and non-frequent motor starting in circuits with overload, short-circuit, and undervoltage protection, effectively protecting circuits and electrical equipment from damage. They are suitable for protecting industrial power distribution, building power systems, and various control equipment.

Product Features
Compliant Standards
·GB/T14048.1 General
·GB/T14048.2 Circuit Breakers
·IEC 60947-1 General
·IEC 60947-2 Circuit Breakers

Ambient Temperature
·This series of products can operate for extended periods within normal ambient and operating temperatures between -5°C and 40°C.
·For operating temperatures exceeding 40°C (over 60°C for motor protection), please refer to the temperature derating requirements or contact us. Storage temperature: -20°C to 70°C.

Altitude
The normal operating altitude for this product must not exceed 2000m.
If installation is required at an altitude exceeding 2000m, changes in dielectric strength and air temperature drop must be taken into consideration. Refer to the altitude derating factor table for details.

Protection Degree
The circuit breaker body has an IP protection rating of IP20.
Circuit breakers installed in switchgear:
Circuit breakers with toggle handles: IP40
Circuit breakers with electric operating mechanisms: IP40

Pollution Degree
This product operates in pollution degree 3 environments (industrial environments) as defined in IEC 60947-1 and 60664-1.

Humidity
For normal operation, the following must be met:
At an ambient air temperature of +40°C, the relative humidity must not exceed 50%. Higher relative humidity conditions are permitted at lower temperatures.
The average relative humidity in the wettest month is 90%. The impact of condensation on the product surface on product performance must be considered.

Reliable contact indication with isolation function
All molded case circuit breakers in this series comply with the isolation defined in IEC standard 60947-2.
The isolation position corresponds to the O (OFF) position.
The operating handle will indicate the "OFF" position only when the contacts are truly open.
Rotating the handle or electric operating mechanism will not change the reliability of the contact indication system. This has been tested.
The isolation function must be guaranteed.
The mechanical reliability of the contact indication system.
No leakage current.
A certain overvoltage withstand capability between the input and output terminals.

The CHM3L series intelligent reclosing leakage circuit breaker is a modern electrical protection device designed to enhance the safety and reliability of power systems. Its rugged plastic housing ensures durability in various environments.

A clear digital display on the front allows users to monitor current, voltage, and other parameters in real time. Below, multiple function buttons, including red and green indicator lights, display the device's operating status and fault information, respectively.

The circuit breaker also offers multiple protection functions, including overload protection, short-circuit protection, and leakage protection, effectively preventing electrical accidents. Its modular design makes it easy to install and maintain, making it suitable for a wide range of residential, commercial, and industrial applications, providing comprehensive safety protection for power systems.

The CHM1EL series intelligent residual current circuit breaker is a key electrical protection device in power distribution equipment. It provides leakage, overload, and short-circuit protection, automatically shutting off power to ensure safety. It features intelligent monitoring, providing real-time circuit status information and visually displaying it on a digital display. Suitable for a variety of applications, including residential, commercial, and industrial, it ensures the reliability and safety of power systems.

Product Features
Compliant Standards
·GB/T14048.1 General
·GB/T14048.2 Circuit Breakers
·IEC 60947-1 General
·IEC 60947-2 Circuit Breakers

Ambient Temperature
·The series can operate continuously within normal ambient and operating temperatures of -5°C to 40°C.
·For operating temperatures exceeding 40°C (over 60°C for motor protection), derating should be applied or contact us.
·Storage temperature range: -20°C to 70°C.

Altitude
·The normal operating installation altitude must not exceed 2000m. If installation is required at altitudes exceeding 2000m, changes in dielectric strength and air temperature drop must be considered. Refer to the altitude derating factor table for details.

Protection Level
Circuit breaker body: IP20
Circuit breaker installed in switchgear:
Circuit breaker with toggle handle: IP40
Circuit breaker with electric operating mechanism: IP40

Pollution Degree
This product operates in pollution degree 3 environments (industrial environments) as defined by IEC 60947-1 and 60664-1.

Humidity
Normal operation requires:
At an ambient air temperature of +40°C, the relative humidity must not exceed 50%. Higher relative humidity conditions are acceptable at lower temperatures.
The average relative humidity in the wettest month is 90%.
Condensation on the product surface must be considered to affect product performance.

Reliable contact indication with isolation function
· All molded case circuit breakers in this series comply with the isolation requirements defined in IEC standard 60947-2.
· The isolation position corresponds to the O (OFF) position.
· The operating handle indicates the "OFF" position only when the contacts are actually open.
· Rotating the handle or electric operating mechanism does not alter the reliability of the contact indication system. After testing, the isolation function must ensure:
· Mechanical reliability of the contact indication system
· No leakage current
· A certain overvoltage withstand capability between the input and output terminals.

12kV outdoor high-voltage disconnectors and vacuum circuit breakers are widely used in medium-voltage power distribution systems, primarily providing control, isolation, and protection. They are particularly well-suited for substations, industrial and mining enterprises, and rural power grid upgrades.

Product Advantages:
High insulation performance: Utilizes high-voltage composite or ceramic insulators, suitable for harsh outdoor environments.
Safety isolation: Features a clearly visible break, ensuring safe maintenance.
Modular structure: Easy installation and easy integration with vacuum circuit breakers, lightning arresters, and other devices.
Multiple operation modes: Supports manual, electric, and remote control to meet the needs of smart grid access.
Low maintenance: Vacuum arc extinguishing design ensures long mechanical life and is suitable for frequent operation.

Typical Applications:
Rural distribution line segmentation; Industrial user line isolation; Boundary switches in urban distribution automation systems; Small substation inlet and outlet protection equipment.

Combining high-reliability operation with safe isolation, this series of 12kV outdoor high-voltage disconnectors and vacuum circuit breakers is an indispensable component of modern power distribution systems, contributing to efficient, safe, and intelligent power grid operation.

This product is an electrical device, specifically a circuit breaker with a digital display. It features a modular design with multiple connection ports, suitable for a variety of circuit connection needs. A prominent operating handle on the front facilitates manual operation and maintenance.

Functionally, this circuit breaker may include overload and short-circuit protection, automatically disconnecting the circuit when an abnormality occurs to protect the circuit and equipment. The digital display may display current operating status, voltage, current, and other parameters, providing real-time monitoring information.

In addition, the device is designed with safety and reliability in mind, with an insulating casing to prevent the risk of electric shock. A green indicator light on the bottom indicates normal operation, while a red indicator light indicates a fault or requires maintenance.

This circuit breaker is suitable for power systems in industrial and commercial environments, providing effective circuit protection and management to ensure stable operation.

The CHM1 impact-resistant molded case circuit breaker accessories include two types of components:

1. Shunt Trip (63FT):
- This component is used to remotely disconnect the circuit breaker when needed, typically for emergency power off or remote control.
- Designed with an impact-resistant plastic housing, it ensures durability and safety in various environments.
- Suitable for CM1 and TM30 (NF30) series circuit breakers.

2. Auxiliary Contact (400(H)FC):
- This component provides additional contact connections, typically for signaling or control circuits.
- Also featuring an impact-resistant plastic housing, it enhances product durability and reliability.
- Suitable for CM1 and TM30 (NF30) series circuit breakers.

Both accessories are designed to enhance the functionality and flexibility of circuit breakers and are suitable for a variety of industrial and commercial applications.

The CHM1LE/CHM1E electronic molded case circuit breaker accessories include several different types of solenoid valves. Each product has its own specific function and application:

1. CML Series: This solenoid valve series is suitable for dispensing and mixing applications. It features a 1/8-inch NPT port for precise fluid control.

2. CDM Series: This series features electric actuators, suitable for applications requiring electric control, enabling remote operation and automated control.

3. CD Series: This series features electric actuators, designed for a wider range of applications, providing a reliable electric control solution.

4. LCD Series: This series features electric actuators, which may feature a liquid crystal display (LCD) for a more intuitive operator interface and status monitoring.

These products are suitable for industrial automation, fluid control, and other fields, meeting diverse control needs.

The DZ20 series molded case circuit breaker is an electrical protection device primarily used for overload and short-circuit protection. The following is an overview of this product:

Material Characteristics:
- The housing is constructed of impact-resistant, highly flame-retardant materials, ensuring structural stability and safety in all environments.
- This material not only resists physical impact but also slows the spread of fire in the event of a fire, enhancing the device's protective performance.

Functional Features:
- Equipped with overload and short-circuit protection, it quickly cuts off power in the event of an overload or short circuit, protecting circuits and equipment from damage.
- A manual operating mechanism allows users to manually control the circuit breaker's opening and closing positions when needed.

Mounting Options:
- Compatible with a variety of mounting options, including fixed and DIN-rail mounting, allowing users to choose the appropriate mounting method based on their needs.
- This flexibility makes the DZ20 series circuit breakers suitable for a wide range of electrical control systems and power distribution systems.

Applications:
- Widely used in power distribution systems in industrial, commercial, and residential buildings, protecting electrical equipment such as motors and transformers.
- Also suitable for applications requiring frequent operation and maintenance, such as factory production lines and commercial complexes.

Safety:
- Designed to comply with relevant electrical safety standards, ensuring reliable protection under various operating conditions.
- Rigorous quality control and testing ensure product durability and reliability.

The DZ20 series molded case circuit breakers, with their excellent protection performance, flexible installation options, and reliable protection functions, have become essential equipment in the electrical protection field.

The DZ20LE series safe and compact molded case leakage circuit breaker features a transparent housing for compact yet powerful electrical control boxes. Features include:

1. Transparent housing: Allows easy observation of internal components for maintenance and troubleshooting.

2. Modular design: Optimized internal component layout facilitates installation and replacement.

3. High protection rating: The housing protects against dust and water intrusion, making it suitable for use in harsh environments.

4. Versatility: Suitable for a variety of electrical control applications, such as industrial automation and power distribution.

5. Safety: Internal components comply with safety standards, ensuring operator safety.

It has a wide range of applications, including but not limited to manufacturing, construction, and energy management, meeting the electrical control needs of diverse industries.

 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.