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    20 amp Fuse & Fuse Holder, 1000V/1500V DC

    Replaceable 1000V/1500V DC 20 amp fuse is suitable for solar PV power generation systems. Quality electric fuse equipped with a DIN rail fuse holder can provide overcurrent protection, fault protection, and fire protection.
    This product has a minimum quantity of 10
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    Delivery date: 6-12 days

    Hot selling 20A solar PV fuse equipped with a 1000V/1500V DC related voltage, flame-retardant DIN rail mount fuse holder, and overheating, overvoltage, and overcurrent functions.


    • Model: ATO-ZYPV-20
    • Fuse Core Size: 10x38mm or 10x85mm
    • Working Current: 20A
    • Rated Voltage: 1000V DC/1500V DC
    • Fire Extinguishing Medium: High Silica Quartz Sand
    • Temperature Range: -40℃~+90℃
    • Fuse Tube Material: 95% High Strength Alumina Porcelain
    • Shell Material: Nylon
    • Melting Core Material: Silver Plated strip
    • Breaking Capacity: 20kA
    • Time Constant: 1~3ms
    • Fuse Core Standard: GB/T 13539.6


    • DC Fuse for Solar: It is a solar fuse that consists of a 20 amp DC fuse and a DIN rail fuse holder, equipped with a PV-specific flame-retardant housing material.
    • Two-Stage Spring Buckle: The solar PV fuse has a midway stop function, which is convenient for installing and removing the product.
    • 95 Alumina Porcelain Core: It has low-temperature rise and strong arc extinguishing performance.
    • Multiple Cooling Holes On The Side: This can enhance the air circulation inside the DC fuse, which is suitable for various high-temperature environments.

    Installation Method

    Fuse holder installation method


    DC fuse dimension


    ATO DC fuse with a fuse holder is specifically designed for use in solar power systems operating on direct current (DC). Its primary purpose is to provide overcurrent and short-circuit protection within the system. By interrupting the circuit when the current exceeds safe levels, the PV fuse prevents damage to solar panels, charge controllers, batteries, inverters, and other components.

    Fuse applications

    Tips: Why use a dc fuse for a solar system?

    • Overcurrent Protection: Solar systems generate DC power, and just like any electrical system, they are susceptible to overcurrent conditions. Overcurrent can occur due to faults, short circuits, or excessive loads. DC fuses are crucial in providing overcurrent protection by interrupting the circuit when the current exceeds a safe threshold. By quickly disconnecting the circuit, fuses prevent damage to the solar panels, wiring, and other system components, ensuring their safe operation.
    • Fire Prevention: Solar systems, especially larger installations, can generate significant amounts of electrical power. In the event of a fault or short circuit, a high level of current can flow through the system, leading to overheating and potentially causing fires. DC fuses act as a safety measure to mitigate this risk by promptly interrupting the current flow and preventing excessive heat buildup. The fuse's role in breaking the circuit helps minimize the chances of fire hazards, protecting both the solar system and the surrounding environment.
    • Maintenance and Troubleshooting: DC fuses facilitate easier maintenance and troubleshooting in solar systems. They allow for specific circuits or sections of the system to be isolated by simply removing or replacing the fuse. This enables technicians to work on individual components or sections without needing to shut down the entire solar array. By providing a localized point of disconnection, DC fuses simplify the process of diagnosing issues and performing repairs or maintenance tasks efficiently.
    • System Reliability: The use of DC fuses enhances the overall reliability of solar systems. By protecting against overcurrent conditions, fuses help prevent catastrophic failures and equipment damage. This ensures the longevity and performance of the solar system, minimizing downtime and improving the system's overall efficiency and productivity.
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