Solar Accessories

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.


USFULL combiner box is made up of dc circuit breaker, dc fuse and surge protection device, all in PV standard, which protect the safety of whole system.

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.

USFULL Plastic PV Combiner Box

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.

USFULL Plastic PV Combiner Box

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 Plastic PV Combiner Box

USFULL combiner box can be used both indoors and outdoors.

USFULL Plastic PV Combiner Box
Rainproof / Waterproof / Anti Corrosion / Customizable
USFULL Plastic PV Combiner Box
Cable Gland
USFULL Plastic PV Combiner Box
Upgrade And Easy Operated Lock
USFULL Plastic PV Combiner Box
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

USFULL Plastic PV 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

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Contact Us

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.

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