In the field of electrical safety protection, fuse holders are essential components for preventing circuit overloads and short circuits. Among various types of fuse holders, the porcelain fuse holder is widely recognized for its excellent insulation, high-temperature resistance, and reliable performance. Many users may wonder: What is a porcelain fuse holder, and what makes it stand out in electrical systems? This article will answer these questions and introduce the CJ3-32L PV Fuse Holder from Zhejiang C&J Electrical co., ltd. (C&J Electrical), a high-quality solution designed for photovoltaic and DC electrical systems.
Porcelain Fuse consists of a fuse carrier and a base with metal contacts attached. These metal contacts are connected to incoming and outgoing wires. In the event of an overload, the inner thin wire of the fuse will melt and cut off the electrical current to prevent damage to an appliance or other electrical device.
A porcelain fuse holder is a type of fuse mounting device that uses porcelain as the main insulating material. Porcelain is chosen for its exceptional properties: high mechanical strength, excellent thermal stability, and strong insulation, making it suitable for high-voltage, high-temperature, and harsh operating environments. Unlike plastic fuse holders, porcelain fuse holders can withstand higher temperatures without deforming or melting, ensuring reliable protection even in extreme conditions. The core function of a porcelain fuse holder is to house and secure the fuse, facilitating easy replacement while providing electrical isolation between the fuse and external components.
As a professional manufacturer of electrical safety components, C&J Electrical has developed the CJ3-32L PV Fuse Holder to meet the growing demand for safe and efficient fuse protection in DC systems, especially photovoltaic (PV) installations. This product combines the advantages of porcelain fuse holders with user-friendly design, becoming a trusted choice for electrical engineers and system integrators.
Overview of C&J Electrical CJ3-32L PV Fuse Holder
The CJ3-32L PV Fuse Holder is a DC fuse holder specifically designed for high-voltage DC applications, with a rated voltage of 1000VDC and a rated current range of 1~32A. It is compatible with 10*38mm fuse cartridges, making it versatile for various DC circuit protection needs.
Compliant with the IEC/EN60947-3 international standard, this PV Fuse Holder ensures consistent performance and safety across global markets. It features a flame-retardant housing with an IP20 protection rating, effectively preventing accidental contact and enhancing safety in electrical enclosures. With a maximum power dissipation (Pn max) of 6W, it operates stably without overheating even under full-load conditions.
The CJ3-32L PV Fuse Holder is engineered for ease of use and reliability, making it ideal for PV systems, energy storage systems, and other DC electrical equipment that requires robust overload and short-circuit protection.
Core Functions & Product Advantages
The CJ3-32L PV Fuse Holder stands out with its practical features and user-centric design, offering significant advantages over conventional fuse holders:
1. Convenient Drawer-Type Design
- Adopts a pull-out (drawer-type) structure. When the fuse melts due to overload or short circuit, the fuse carrier can be smoothly pulled out for replacement. This humanized design eliminates the common issue of conventional fuse holders getting stuck, which makes fuse replacement difficult and time-consuming.
- The pull-ring plug and integrated pull-ring design further simplify operation, allowing users to replace fuses quickly without the need for specialized tools.
2. Superior Flame-Retardant & Insulation Performance
- The housing is made of flame-retardant and heat-insulating materials, with a smooth and insulated surface. It exhibits excellent flame-retardant properties, preventing the spread of fire in the event of a circuit fault and ensuring the safety of the entire electrical system.
- The high-quality insulation material effectively isolates electrical current, reducing the risk of electric shock and short circuits.
3. Versatile Compatibility & High Current Capacity
- Compatible with 10*38mm standard fuse cartridges, supporting a maximum current of 32A. This wide current range makes it suitable for various low to medium-power DC circuit protection applications.
- Designed for 1000VDC high-voltage DC systems, it meets the strict voltage requirements of PV inverters, energy storage batteries, and other high-voltage DC equipment.
4. Easy Standard DIN Rail Installation
- Supports 35mm standard DIN rail mounting, which is the universal installation method for modular electrical components. This allows for quick and secure installation in distribution cabinets and electrical enclosures, saving time and labor costs.
- The compact design ensures efficient use of space, making it suitable for dense electrical panel layouts.
Technical Parameters
|
Parameter
|
Details
|
|---|---|
|
Product Name
|
DC Fuse Holder (PV Fuse Holder)
|
|
Model
|
CJ3-32L
|
|
Rated Voltage
|
1000VDC
|
|
Rated Current
|
1~32A (Maximum 32A)
|
|
Fuse Size
|
10*38mm
|
|
Executive Standard
|
IEC/EN60947-3
|
|
Protection Rating
|
IP20
|
|
Maximum Power Dissipation (Pn max)
|
6W
|
|
Mounting Type
|
35mm Standard DIN Rail
|
|
Housing Material
|
Flame-Retardant Insulating Material
|
|
Design
|
Drawer-Type with Pull-Ring
|
Application Scenarios
Thanks to its high-voltage compatibility, reliable protection, and easy operation, the CJ3-32L PV Fuse Holder is widely used in various DC electrical systems, including:
- Photovoltaic (PV) Systems: Used in PV string inverters, combiner boxes, and PV modules to protect circuits from overloads and short circuits, ensuring the stable operation of solar power generation systems.
- Energy Storage Systems: Suitable for battery energy storage systems (BESS), protecting the battery packs and internal circuits from electrical faults.
- DC Power Supplies: Applied in industrial DC power supplies, telecom power systems, and UPS (Uninterruptible Power Supply) systems for circuit protection.
- Electric Vehicle (EV) Charging Stations: Used in DC charging piles to protect the charging circuits and ensure safe charging of electric vehicles.
- Industrial DC Equipment: Ideal for DC motors, DC drives, and other industrial DC equipment that requires reliable overload protection.
Why Choose C&J Electrical CJ3-32L PV Fuse Holder?
C&J Electrical is committed to providing high-quality, safe, and user-friendly electrical components. The CJ3-32L PV Fuse Holder offers compelling reasons for customers to choose:
- Reliable Safety Performance: Compliant with international standards, featuring flame-retardant housing, IP20 protection, and robust insulation, ensuring comprehensive protection for DC circuits.
- User-Centric Design: The drawer-type structure and pull-ring design solve the pain points of conventional fuse holders, making fuse replacement quick and hassle-free.
- Versatile Compatibility: Supports 10*38mm fuses and 35mm DIN rail mounting, adapting to various installation scenarios and circuit requirements.
- High Quality & Durability: Manufactured with premium materials and strict quality control, ensuring long-term stable operation even in harsh environments.
- Flexible Customization: Supports OEM brand customization services, allowing customers to tailor the product to their specific brand and market needs.
- Wide Application Range: Suitable for PV systems, energy storage, EV charging stations, and industrial DC equipment, meeting diverse customer needs.
Get in Touch
If you have any questions about the CJ3-32L PV Fuse Holder, such as technical specifications, customization options, bulk orders, or application guidance, please feel free to contact C&J Electrical. Our professional team will provide you with reliable solutions and high-quality services to meet your DC circuit protection needs.
Post time: Mar-10-2026