In the entire electrical power supply system, the electrical distribution board (also known as Distribution Box) is a vital hub that undertakes the functions of power distribution, control and protection. It connects the main power supply to various electrical equipment and circuits, ensuring the safe and stable operation of the entire power system. Zhejiang C&J Electrical co., ltd. (referred to as C&J Electrical) has rich experience in the production of distribution boxes, including waterproof and metal types. Today, we focus on introducing the CJMCU series metal distribution box, which is specially designed for household scenarios and provides reliable power distribution solutions for families.
Core Definition & Role of Electrical Distribution Board (Distribution Box)
A distribution table is an essential part of an electrical power supply system. Its role is to distribute the incoming electrical energy into several secondary circuits. Most of the time, each secondary circuit is protected by a fuse or circuit breaker. Simply put, the Distribution Box is like the “nerve center” of the power supply system. It receives the total electrical energy from the power grid, then distributes it to different rooms, electrical appliances and equipment through multiple branch circuits. At the same time, it is equipped with protective components to cut off the circuit in time when faults such as overload, short circuit or leakage occur, avoiding electrical fires, equipment damage and personal safety hazards.
As an important part of the low-voltage power distribution system, the Distribution Box has the characteristics of centralized control, convenient maintenance and reliable protection. Different types of distribution boxes (such as metal, plastic, waterproof) are designed according to different application scenarios and environmental requirements to meet the diverse needs of household, industrial and commercial power distribution.
Core Functions of Distribution Box
The Distribution Box integrates multiple core functions, which are crucial to the safe and efficient operation of the power supply system:
- Power distribution function: Distribute the incoming main power to multiple branch circuits in a reasonable way to meet the power demand of different electrical equipment and regions
- Circuit protection function: Equipped with protective components such as circuit breakers, leakage protectors or fuses; when faults such as overload, short circuit, leakage occur in the branch circuit, the corresponding protective component acts quickly to cut off the circuit and prevent fault expansion
- Control function: Realize the on-off control of each branch circuit through switches or circuit breakers, facilitating daily power management and maintenance operations
- Wiring integration function: Concentrate the wiring of each branch circuit in the box, making the wiring neat and orderly, which is convenient for later inspection, maintenance and troubleshooting
- Environmental protection function: The shell of the distribution box can isolate the internal electrical components from the external environment, preventing dust, moisture, foreign objects and other factors from affecting the normal operation of the components
C&J Electrical’s CJMCU Metal Distribution Box: Core Advantages & Product Features
The CJMCU series metal distribution box launched by C&J Electrical is a high-quality Distribution Box specially designed for household places. It is a specific type of distribution board used to control and distribute electrical energy. Unlike traditional fuse protection, modern consumer units (household distribution boxes) adopt earth leakage trip as the protection device. A consumer unit usually contains a row of horizontally arranged miniature circuit breakers. The load current rating is 100 amps, which meets the strict requirements of the largest household demand. Its core advantages and product features are as follows:
Core Product Features & Advantages
- Standard compliance: Meets BSEN61439-3 standard, ensuring product quality and safety performance
- Stable working parameters: Working voltage 230V, frequency 50/60Hz, fully compatible with household power supply systems
- Reliable protection level: IP20 protection level, effectively preventing solid foreign objects from entering and ensuring the safety of internal components
- High-quality material: Made of cold-rolled steel plate, which has excellent mechanical strength, impact resistance and corrosion resistance
- Full enclosed metal structure: With a pull-down metal cover, providing comprehensive protection for internal electrical components
- Multiple cable entry points: Multiple circular cable entries (25&32mm) on the upper, lower sides and back, 40mm on the side, and a larger notch on the back, facilitating flexible cable routing
- Unique cover closing design: Adopts strong magnets, ensuring tight closing of the cover and reliable protection
- Elevated DIN rail: Improves cable routing, making wiring more neat and convenient
- Modern appearance: Surface treated with white polyester powder coating (RAL9003), which is beautiful and durable, and fits various home decoration styles
- Large wiring space: Easy to observe and operate; additional reserved RCBO installation positions, supporting functional expansion
- Flexible connection: Supports multiple protection path configurations, adapting to different household power distribution requirements
- Customizable circuit options: 2-22 circuits optional, and supports customization to meet the needs of different house types and electrical configurations
Key Technical Parameters
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Parameter
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Details
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Standard
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BSEN61439-3
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Working voltage
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230V
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Working frequency
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50/60Hz
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Protection level
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IP20
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Material
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Cold-rolled steel plate
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Surface treatment
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White polyester powder coating (RAL9003)
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Load current rating
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100A
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Optional circuits
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2-22 circuits (support customization)
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Application Scenarios of CJMCU Metal Distribution Box
The CJMCU series metal Distribution Box is mainly designed for household places, with a wide range of applications, including:
- Residential buildings: Apartments, villas, townhouses – used for power distribution and protection of living rooms, bedrooms, kitchens, bathrooms and other areas
- Small commercial places: Small shops, convenience stores, home offices – meeting the basic power distribution needs of small-scale commercial electrical equipment
- Renovation projects: Old house electrical renovation, new house decoration – providing standardized and reliable power distribution solutions
- Affordable housing projects: Low-rent housing, public rental housing – adapting to the standardized power configuration requirements of affordable housing
Why Choose C&J Electrical’s CJMCU Metal Distribution Box?
In the field of household Distribution Box, the CJMCU series metal distribution box from C&J Electrical has obvious competitive advantages:
- High safety performance: Complies with international standards, adopts full enclosed metal structure and reliable protection components, effectively ensuring household electricity safety
- High-quality and durable: Made of cold-rolled steel plate and advanced surface treatment technology, with long service life and strong environmental adaptability
- Humanized design: Multiple cable entry points, elevated DIN rail, large wiring space, etc., facilitating installation and maintenance
- Strong customization: Optional circuits and support for customization, meeting the individual needs of different users
- Beautiful and practical: Modern appearance design fits home decoration styles, realizing both functionality and aesthetics
Get in Touch
If you have any questions about the CJMCU series metal Distribution Box, such as product specifications, technical details, customization needs, or bulk orders, please feel free to contact C&J Electrical. Our professional team will provide you with tailored household power distribution solutions to ensure the safe and stable operation of your home power system.
Post time: Dec-30-2025