2 String Pv Combiner Box

2 String Pv Combiner Box
Product Introduction:
The 2 String Pv Combiner Box is designed for small photovoltaic systems to combine and protect DC input circuits before connection to the inverter. It integrates DC isolation, overcurrent protection, and surge protection in one compact enclosure to simplify field wiring, reduce installation complexity, and improve operational safety in outdoor photovoltaic environments.
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Description
Technical Parameters

Product Overview

 

The 2 String Pv Combiner Box is designed for small photovoltaic systems to combine and protect DC input circuits before connection to the inverter.

 

It integrates DC isolation, overcurrent protection, and surge protection in one compact enclosure to simplify field wiring, reduce installation complexity, and improve operational safety in outdoor photovoltaic environments.

 

Specifications

 

Product Name

DC 2 string pv combiner box

Rated Voltage

600V DC

Input

2 Strings

Output

1 String or 2 Strings (Customizable based on MPPT configuration)

Temperature Range

-25℃ ~ +55℃

Certificate

CE / TUV

IP Protection Class

IP 65

Finger Safe Touch

Yes

 

Core Technical Highlights

 

Supports 2-string photovoltaic DC input configuration for small solar power systems.

 

Rated voltage up to 600V DC, suitable for residential and light commercial string inverter systems.

 

Integrated DC fuses, isolation switch, and Type II surge protection help reduce the risk of DC faults and inverter damage.

 

IP65 enclosure with sealed structure designed for outdoor environments exposed to rain, dust, and humidity.

 

Finger-safe internal structure improves installation and maintenance safety during field operation.

 

Internal Electrical Layout

 

Internal Layout & Reliability:Premium Copper Busbars: Uses high-conductivity copper connections to ensure low resistance and stable power transmission.

 

Thermal Optimization: Internal spacing is engineered to minimize heat accumulation under continuous full-load outdoor operations.

 

Safe Load Isolation: The rugged DC switch allows full-load disconnection for emergency shutdown or routine system maintenance.

 

Protection & Reliability

 

Built-in protection functions include:

DC overcurrent protection

 

Short-circuit isolation

 

Photovoltaic surge protection

 

Grounding protection

 

Internal electrical spacing and wiring layout are designed to reduce heat accumulation and improve long-term connection stability under continuous outdoor operating conditions.

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Applications

 

Residential Rooftop Solar Systems: Protects and simplifies small-scale home solar installations.

 

Dual-MPPT Single-Phase PV Projects: Perfectly matches dual-MPPT inverters by separating or combining string inputs.

 

Small Commercial Solar Arrays: Scalable solution for small business offices, farms, and workshops.

 

Off-Grid Solar & Energy Storage Installations: Provides crucial DC side protection for battery-charging solar subsystems.

 

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FAQ

 

Q: Is the combiner box suitable for outdoor installation?

A: Yes. The enclosure is rated IP65 and designed for outdoor photovoltaic environments exposed to rain, dust, and humidity.

Q: What protection functions are included?

A: The unit includes DC fuse and isolation protection, Type II surge protection, grounding protection, and short-circuit isolation.

Q: Is OEM/ODM service available?

A: Yes. OEM branding, packaging customization, and enclosure configuration adjustments are supported.

Q: What tests are performed before shipment?

A: Each unit undergoes electrical continuity testing, insulation inspection, and wiring verification before shipment.

 

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Product Name

DC 2 string pv combiner box

Rated Voltage

600V

Input

2 String

Output

2 Sting

Temperature Range

-25℃ ~ +55℃

Certificate

CE / TUV

IP Protection Class

IP 65

Finger Safe Touch

Yes

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