A fuse holder is a critical electrical component designed to house and secure a fuse, establishing a safe and reliable electrical connection between the fuse and the circuit. As an indispensable matching part of fuses, the fuse holder not only fixes the fuse in the correct position but also ensures the stable transmission of current, and plays a protective role in the process of fuse replacement and circuit maintenance. In electrical systems, the fuse is responsible for cutting off the circuit in case of overcurrent or short circuit to protect electrical equipment and the power supply system from damage, while the fuse holder is the “carrier” of the fuse, determining the installation stability, wiring reliability and maintenance convenience of the fuse. Fuse holder selection depends on multiple factors including the fuse type selected, current and voltage ratings, circuit integration method, required certifications, and environmental protection needs. Selection Steps: Determine circuit requirements: Maximum continuous current, voltage, fault current. Zhejiang C&J Electrical co., ltd. (referred to as C&J Electrical) has launched the CJPV series drawer-type fuse holder (CDFH series), which is designed in strict accordance with international standards, with excellent safety performance and humanized design, becoming a reliable choice for fuse installation in various electrical systems.
Fuse Holder: Core Overview & Working Principle
To fully understand the value of a fuse holder, it is necessary to first clarify its core definition and working principle. A fuse holder is a mechanical device used to install and fix fuses, which is mainly composed of a shell, terminals, and a fuse installation slot. Its core function is to provide a stable and safe installation position for the fuse, ensure that the fuse is in good contact with the circuit, and facilitate the replacement of the fuse when it is blown due to overcurrent or short circuit.
In the working process of the electrical system, the fuse holder undertakes two key tasks: first, it connects the fuse in series to the circuit to ensure the normal transmission of current; second, when the circuit fails (such as overcurrent, short circuit), the fuse melts and cuts off the circuit, and the fuse holder isolates the fuse from the circuit to prevent electric shock hazards during maintenance and replacement. Different from ordinary electrical connectors, the fuse holder has higher requirements for safety, temperature resistance and flame retardancy, because it needs to withstand the high temperature generated when the fuse melts and ensure that it will not be damaged or cause safety accidents.
With the continuous development of electrical technology, fuse holder has derived various types according to installation methods, structural forms and application scenarios, such as drawer-type, plug-in type, bolt-type, etc. Among them, the drawer-type fuse holder is favored by users due to its convenient replacement of fuses and flexible installation, and C&J Electrical’s CJPV series drawer-type fuse holder is a high-performance product developed for the core needs of users.
Core Functions of a Fuse Holder
As an important supporting component of the fuse, the fuse holder’s functions are closely related to the safe and stable operation of the electrical system. Its core functions are not only to fix and connect the fuse but also to provide multiple protections and convenience, specifically as follows:
- Fuse fixing and connection: The core function of the fuse holder is to fix the fuse firmly in the designated position, ensure good contact between the fuse and the terminals of the holder, and realize the stable transmission of current, avoiding poor contact caused by loose fuse, which leads to heat generation or circuit failure.
- Safety protection: The fuse holder is equipped with a flame-retardant and high-temperature-resistant shell, which can withstand the high temperature generated when the fuse melts and breaks, preventing the shell from burning or melting and avoiding the spread of fire. At the same time, it can isolate the live parts of the fuse, preventing operators from touching the live parts during maintenance and replacement, and avoiding electric shock hazards.
- Fuse replacement convenience: A high-quality fuse holder (such as the drawer-type fuse holder) is designed to facilitate the replacement of fuses. When the fuse is blown, the fuse can be quickly taken out and replaced without disassembling the entire circuit or electrical equipment, which greatly improves the maintenance efficiency and reduces the maintenance cost.
- Circuit integration and wiring optimization: The fuse holder can integrate the fuse into the circuit reasonably, optimize the wiring layout of the circuit, reduce the space occupied by the fuse installation, and make the circuit structure more compact and tidy, which is convenient for the inspection and maintenance of the entire electrical system.
- Adapt to different working environments: High-performancefuse holder has good environmental adaptability, can work stably in different temperature ranges, humidity environments and pollution degrees, and ensure the reliability of the fuse’s protection function, even in harsh working environments.
Common Application Scenarios of Fuse Holders
As a basic electrical component, fuse holder is widely used in various electrical systems and electrical equipment, covering industrial production, commercial buildings, residential areas, new energy, and other fields. Any circuit that needs to install a fuse to achieve overcurrent and short-circuit protection needs to use afuse holder. The main application scenarios are as follows:
- Power distribution system: Widely used in high and low voltage distribution systems, such as distribution boxes, distribution cabinets, etc., the fuse holder installs fuses in each branch circuit to protect the distribution equipment and branch circuits from overcurrent and short-circuit damage.
- Electrical control system: Applied to various electrical control systems, such as industrial control cabinets, motor control boxes, etc., to protect the control circuit and electrical components (such as contactors, relays) from damage, ensuring the stable operation of the control system.
- New energy field: Used in photovoltaic (PV) systems, energy storage systems, inverters, etc., the fuse holder needs to have high voltage and current resistance, and adapt to the outdoor harsh environment, protecting the new energy equipment and circuits.
- Civil and commercial electrical equipment: Applied to household electrical equipment, commercial electrical equipment (such as air conditioners, refrigerators, printers, etc.), the fuse holder is installed in the power supply circuit of the equipment to protect the equipment from overcurrent damage and ensure the safety of users.
- Industrial equipment: Used in various industrial equipment, such as pumps, fans, electric tools, etc., the fuse holder protects the motor and electrical circuit of the equipment, avoiding equipment damage and production interruption caused by circuit faults.
C&J Electrical CJPV Series Drawer-Type Fuse Holder (CDFH Series): Overview & Core Advantages
C&J Electrical’s CJPV series drawer-type fuse holder (CDFH series) is a high-performance fuse holder designed for the core needs of various electrical systems, which is made of refractory material and fully complies with the standard of IEC 60269-6. The maximum rated voltage of the product is 1000V, and the maximum current is 30A. As a short circuit and over-current protector, it is widely used in the high and low voltage distribution system, control system, and electrical equipments, like distribution box and inverter. Compared with ordinary fuse holder on the market, it has obvious advantages in installation, safety, and durability, and its core product benefits are as follows:
Core Product Benefits
- DIN35 Rail Installation, Easy to Install: The fuse holder adopts DIN rail IEC/EN 60715 installation method, which is consistent with the installation standard of most electrical components. It can be quickly installed on the 35mm DIN rail through a simple fixing method, without complicated drilling or wiring, which greatly improves the installation efficiency and reduces the installation labor cost.
- Adjustable terminal block, Wiring firm: Equipped with adjustable terminal blocks, which can adapt to different wire specifications (2.5mm²-6.0mm²), and the wiring is firm and reliable. It can effectively avoid poor contact caused by wire looseness, prevent heat generation or circuit failure, and ensure the stable operation of the circuit.
- Fire-retardant shell, high temperature resistance: The shell is made of high-quality refractory and flame-retardant materials, which has excellent high-temperature resistance and flame retardancy. It can withstand the high temperature generated when the fuse melts and breaks, preventing the shell from burning or melting, and avoiding fire accidents, ensuring the safety of the electrical system.
- Flexible installation, Easy to replace: Adopting drawer-type structural design, the fuse can be quickly drawn out and replaced without disassembling the fuse holder or the circuit. The operation is simple and convenient, which greatly improves the maintenance efficiency and reduces the maintenance time and cost.
CJPV Series Drawer-Type Fuse Holder: Detailed Technical Parameters
The CJPV series drawer-type fuse holder of C&J Electrical has stable performance and complete specifications, and its detailed technical parameters are as follows, which can fully meet the use needs of various electrical systems:
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Parameter
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Details
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|---|---|
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Standard
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IEC 60269-6
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PV DC CDFH Fuse Holder Pole
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1P
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Rated Working Voltage
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1000VDC
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|
Rated Current
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30A
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|
Breaking Capacity
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20kA
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Max Power Dissipation
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3W
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|
Connection and Installation Wire
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2.5mm²-6.0mm²
|
|
Terminal Screws
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M3.5
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|
Torque
|
0.8~1.2N.m
|
|
Degree of Protection
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IP20
|
|
Fuse Size
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10x38mm
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|
Operating Temperature Range
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-30°C~+70°C
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|
Mounting
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DIN rail IEC/EN 60715
|
|
Pollution Degree
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3
|
|
Relative Humidity
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+20°C ≤95%, +40°C ≤50%
|
|
Installation Class
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III
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|
Weight
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0.07kg Per pole
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Why Choose C&J Electrical CJPV Series Drawer-Type Fuse Holder?
In the fuse holder market, there are many products with different qualities, but C&J Electrical’s CJPV series drawer-type fuse holder stands out with its comprehensive advantages and becomes the preferred choice for users pursuing safety, reliability and convenience. The reasons for choosing it are as follows:
- Standard compliance and high reliability: Strictly complies with the IEC 60269-6 international standard, adopts high-quality refractory materials and advanced production technology, and has undergone strict quality testing. The product performance is stable and reliable, which can meet the use requirements of various harsh working environments.
- Humanized design, easy to install and maintain: DIN35 rail installation, adjustable terminal blocks, and drawer-type structure design make the fuse holder easy to install, wire and replace fuses, which greatly improves the installation and maintenance efficiency and reduces the labor cost.
- High safety performance: Flame-retardant shell, high temperature resistance, IP20 protection level, and other multiple safety designs can effectively avoid safety hazards such as fire and electric shock, ensuring the safety of the electrical system and operators.
- Strong adaptability: The product has a wide operating temperature range (-30°C~+70°C), suitable for different humidity and pollution degree environments, and can be widely used in high and low voltage distribution systems, control systems, distribution boxes, inverters and other electrical equipment.
- Flexible customization services: C&J Electrical supports OEM/ODM brand customization services for the CJPV series drawer-type fuse holder. It can customize product labels, logos, and other details according to user needs, meeting the personalized needs of different customers and markets.
- Professional after-sales support: C&J Electrical has a professional technical and after-sales team, which can provide users with product selection guidance, technical consultation and after-sales maintenance services, solving users’ worries about use and maintenance.
Get in Touch
If you have any questions about the CJPV series drawer-type fuse holder, 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 high-quality fuse holder solutions and reliable services, ensuring the safe and stable operation of your electrical system.
Post time: Feb-25-2026