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China Photovoltaic Fuses and Protection Components Suppliers - Reliable Factory Solutions for Solar Panel Systems
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China Photovoltaic Fuses and Protection Components Suppliers - Reliable Factory Solutions for Solar Panel Systems

In photovoltaic (PV) systems with more than four module strings, fault currents can surpass the operational current levels, leading to potential overheating and damage to wire insulation. To ensure optimal safety for both the system and personnel working with the equipment, it is crucial that each solar panel string is equipped with a fuse on both the + and - terminals, These fuses play a vital role in isolating the faulty string, allowing the rest of the PV system to continue generating electricity seamlessly. When a fault occurs in the DC circuit of the PV system, the lack of a natural zero crossing complicates the interruption of DC faults compared to AC faults. In this scenario, only the fuses can successfully reduce the current to zero, ensuring comprehensive system protection, As a leading supplier and factory in China, we provide high-quality fuses specifically designed for solar panel strings to enhance safety and performance in your photovoltaic installations. Trust our products to safeguard your investment and optimize your energy production

    PV Cylindrical Fuse Links
    PV Cylindrical Fuse Links

    A73 series gPV fuses are specially engineered and tested to provide best-in-class protection performance in protecting high power battery charging and managing systems of Electrical Vehicles and Hybrid Electrical Vehicles, up to 1000 Vdc in ratings from 1A to 30A.

    • Reliable clearing of DC fault currents
    • High cycling performance
    • High breaking capacity to 30kA
    • Operation as low as 200% In overload protection
    • Full coverage of battery module current
    • QR code marks on each fuse for traceability
    • Special design with silver plated caps for high-power PV applications
    • BH 100-01, BH10-02 holders for DIN rail mounting
    PV NH Type Fuses

    AX6 series PV fuses are engineered and manufactured for use in combiner box and power storage protection, made from the highest quality materials and tested to the highest standards. With rated currents from 80A to 200A with a breaking capacity of 10kA.

    • Reliable clearing of DC fault currents
    • High cycling performance
    • Low watt losses
    • Ultra-compact size and power density
    • Breaking Capacity: 10 kA @ 1500 Vdc
    • Time constants: 1–3ms
    • Operation as low as 200% In overload protection
    • Full coverage of battery module current
    • QR code marks on each fuse for traceability
    PV NH Type Fuses
    DC Surge Protection Devices
    DC Surge Protection Devices

    ASPD Series PV DC Surge Protection Devices are designed and manufactured complying to PV standard IEC 61643-31/EN 50539-11. It is widely used in PV DC combiner boxes, inverters, controllers and DC cabinets. With a rated voltage of 1000 VDC and a maximum discharge current of 40 kA, the integrated high-energy varistor provides highly effective protection against lightning and surge voltages.

    • Type 2 DC power surge protector for PV systems
    • Integrated status indicator window
    • Pre-wired complete modular unit (consists of base unit and replaceable protection modules)
    • Maintenance-free, easily replaceable protection modules
    • High energy MOV's response time less than 25 nano-seconds
    • Optional remote signal contacts for monitoring device (floating changeover contacts FM can be installed)
    • DIN Rail mounting TH35-7.5 / DIN35
    • Compatible with IEC 61643-31/EN 50539-11
    Frequently Asked Questions
    QWhat is the voltage rating of the A73 series PV Cylindrical Fuse Links?
    The A73 series gPV fuses are rated up to 1000 Vdc, covering current ratings from 1A to 30A, making them suitable for high-power battery charging and management systems in Electrical Vehicles (EV) and Hybrid Electrical Vehicles (HEV).
    QWhat breaking capacity do the PV NH Type Fuses (AX6 series) offer?
    The AX6 series PV NH Type Fuses provide a breaking capacity of 10 kA at 1500 Vdc, with rated currents ranging from 80A to 200A, ensuring reliable protection in combiner boxes and power storage applications.
    QAre the fuse products traceable after installation?
    Yes. Both the PV Cylindrical Fuse Links (A73 series) and the PV NH Type Fuses (AX6 series) feature QR code marks printed on each individual fuse unit, enabling full traceability throughout the product lifecycle.
    QWhat standards do the ASPD Series DC Surge Protection Devices comply with?
    The ASPD Series PV DC Surge Protection Devices are designed and manufactured in compliance with IEC 61643-31 and EN 50539-11, the internationally recognized standards for surge protective devices used in photovoltaic power generation systems.
    QHow are these PV protection products mounted in the field?
    All products support convenient DIN rail mounting. The PV Cylindrical Fuse Links use BH 100-01 and BH10-02 holders, while the ASPD Series Surge Protection Devices are compatible with TH35-7.5 and DIN35 rail systems, simplifying installation in combiner boxes and DC cabinets.
    QCan the DC Surge Protection Devices be monitored remotely?
    Yes. The ASPD Series features an optional remote signal contact (floating changeover contacts FM) that can be installed for remote monitoring of device status. An integrated status indicator window also provides a quick visual check on-site.