This high-safety and reliability outdoor PV power generation system component meets the NEC 2017/2020 standards, with 1500V DC voltage, output circuit breaker ratings up to 400A or 500A, and NEMA 4X housing protection class. It is ideal for parallel series combination and current protection in large-scale photovoltaic power stations.

Compatible Solar Inverter

HUAWEI, SUNGROW, SMA, DELTA, ABB, TEMIC, Fuji Electric Electric...
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A DC combiner box collects the electricity generated by solar panels in one place and processes it appropriately. It is a crucial component of a solar power generation system that enhances safety and efficiency, including functions that prevent overcurrent and reverse current.

Common Specifications

・Connection Method: MC4 terminal, OT terminal, copper bar
・Enclosure Material: Stainless steel, steel plate, plastic
・Installation Method: Roof-mounted, horizontal installation, wall-mounted, etc.
・Installation Environment: On land, on water, offshore, etc.
・Options: Lightning protection SPD, remote monitoring/operation, overcurrent protection, etc.

Performance and Specifications

・Protection Rating：IP65
・Insulation Resistance≥10MΩ
・Insulation Withstand Voltage：3820VDC、1MIN

International Standard Certification

・NEC
・TUV
・CE

Compatible Power Conditioner Manufacturers (Partial List)

Japanese Manufacturers: TMEIC, Fuji Electric, Shindengen Electric Manufacturing, Tabuchi Electric
Overseas Manufacturers: Huawei, Sungrow, SMA, Delta Electronics, ABB, etc.

With Reverse Current Prevention Diode

In a solar power plant, if one of the parallel-connected strings cannot generate power due to some cause, the current generated by the other strings can flow backward and consume power. Installing a reverse current prevention diode (blocking diode) can prevent reverse current from other strings.

Due to the semiconductor shortage, the lead time for junction boxes with reverse current prevention diodes often exceeds one year, which can delay the start of solar power plants. GBP can offer junction boxes with reverse current prevention diodes on short lead times, solving this issue.

With rapid technological advancements, the requirements for solar power generation systems are changing for each project. GBP meets these requirements with outstanding customization capabilities, excellent cost performance, and short lead times, which have been adopted by many customers. As of 2022, we have sold over 5,000 units in Japan alone.

01

Customers provide specifications, quantity, delivery method, single-line diagrams, and other relevant details. Based on this information, GBP will propose a basic specification tailored to your needs.

02

The customer reviews and signs off on GBP's proposed specifications and confirms the transaction terms before placing the order.

03

Submission of completion photos and issuance of warranty certificate.