USFULL Plastic PV Combiner Box


USFULL FUCB series plastic pv combiner box is newly developed solid and durable, light weight box. With the function of lightning protection combiner box, specially designed for small solar projects.


Off grid solar power system
Energy storage system
Solar pump system

Quote Now

    USFULL FUCB series Plastic PV Combiner Box is newly developed solid and durable, light weight box. With the function of lightning protection combiner box, specially designed for small solar projects. Including 2ways and 4ways.

    Photovoltaic DC combiner box refers to a box that connects photovoltaic strings and is equipped with necessary protection devices to realize the parallel connection between photovoltaic strings. Since the photovoltaic DC combiner box is arranged outdoors, the protection level is generally required to be above IP65.

    Input side of the combiner box string generally uses a fuse as a protection device, the output side uses a DC circuit breaker as a protection device, and a lightning protection device is installed on the DC busbar

    USFULL combiner box can be used both indoors and outdoors.

    Rainproof / Waterproof / Anti Corrosion / Customizable

    Cable Gland

    Upgrade And Easy Operated Lock

    Rubber Sealed Loop

    Precautions for installation of photovoltaic DC combiner box

    The protection level of the cabinet is IP65, which is suitable for outdoor installation. The installation position should meet the following requirements:

    1. According to the location of the combiner box, its overall dimensions and weight should be fully considered

    2. The installation environment temperature of the combiner box should be between ~25℃`+55℃, and the relative humidity should be between 0~95%

    3. The combiner box should be installed in a dry, well-ventilated and dust-proof place

    4. Wire entry and exit type and installation method: the armored cable enters and exits from the bottom, and the outdoor photovoltaic module bracket is suspended and installed on the rear column.

    5. Avoid installing in a place directly exposed to the sun, otherwise the excessively high temperature will reduce the power generation of the system and may also affect the service life of the combiner box

    6. In order to better heat dissipation and facilitate daily maintenance, keep enough space in the four directions of installing the combiner box

    For different projects, you can choose 2ways or 4ways according to your actual requirement.

    If you have more inquiry for iron case DC Combiner Box, you can check from our website to get more.

    Welcome to send us inquiry and discussion the suitable solution for your project!

    Type FU-CB2 FU-CB4
    Max Rated Voltage DC 500V/ 1000V
    Fuse Holder 1000V DC 30A
    Surge Protection DC Type Ⅱ/In=20KA, Imax=40KA, Ucpv=1000V DC
    Number of DC Inputs 2 4
    Connection Type DC Input PG09, IP68
    Input Fuse 15A
    Number of DC Outputs 1
    Shell material Anti fire plastic
    Gland Connectors Material: Nylon Plastic, Seals: Nitrile Rubber Buna, IP68
    Operating Temperature  -25℃~+60℃
    Permissible relative humidity 0-99%, no condensation
    Altitude ≤2000m,2000m,Derating
    Installation Wall mounting
    Width(mm) 295 405
    Height(mm) 280 310
    Depth(mm) 140 128

    Let The World Know About USFULL

    USFULL specializes in solar pumping inverter and variable frequency drive. The product technology research and development is constantly updated. The shell design is patented. We only make products that make customers happy.


    Why USFULL

    Choose Us for a Remarkable Difference in Your Product Experience.  We don’t just offer items;  we provide solutions tailored to your unique vision.

    With our commitment to innovation, you gain access to the latest technology and industry trends.  Our meticulous attention to quality ensures that every product meets stringent standards, delivering exceptional performance and enduring reliability.

    Related Products


    Talk With Our Sales

    USFULL focuses on the global market and provides our clients with products suitable for the local market:

    • Comprehensive brochure you can download
    • 1-3 year quality assurance
    • Lightning delivery
    • OEM & ODM
    • Fast respond or enthusiasm
    • Rapid production
    • Low MOQ


    Contact Us

    Unwavering in our dedication to customers and delivering cutting-edge innovations, USFULL stands as your steadfast ally on the journey ahead.