High-Quality DC combiner box with SPD Supplier, Exporters

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High-Quality DC combiner box with SPD Supplier, Exporters

The PVB series photovoltaic combiner box adopts a wall-mounted design, integrates four protections: reverse current, overcurrent, overvoltage, and lightning protection, supports customized configuration, and effectively improves the efficiency and safety of photovoltaic systems.

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Product Description

PV Array Combiner Box (PVB Series)

PVB series PV Array Combiner Box is used for the connection of PV inverter and PV array to lessen the cable requirements, simplify maintenance, and improve system reliability. By fixing the DC convergence device between the inverter and array, it provides a high-efficiency solution for PV power generating systems.

Users can connect PV components in series to form an array according to the DC input voltage range, then converge these arrays through the lightning protection device and breaker for enhanced safety and faster installation.

Product Overview

As a key component of solar power systems, the PVB series simplifies the architecture by combining multiple module inputs into a single output. It features an industrial-grade wall-mounted design to save space. The built-in intelligent protection system includes diode isolation for reverse current prevention, fuse overcurrent protection, MOV overvoltage absorption, and Type II surge protection. With an IP65 rating and an operating range of -25°C to +60°C, it is built for harsh global environments.

Key Features

✔ Outdoor Protection: IP65 protection class, specifically designed for outdoor installation.

✔ Lightning Protection: High voltage surge protective device (SPD) tailored for PV systems.

✔ Circuit Safety: Each input features DC fuse protection and optional anti-reverse protection.

✔ Flexible Wiring: Waterproof PG Cable Gland or MC4 terminal connectors available for safe wiring.

✔ Wide Voltage Range: Supports maximum open-circuit voltage up to 1000V DC.

✔ Easy Maintenance: Wall mounting type allows for convenient installation and service.

Technical Parameters

Type Designation	PVB-2	PVB-4	PVB-5	PVB-6
Max. PV Array Input String	2	4	5	6
Max. PV Array Voltage	400Vdc or 1000Vdc
Rated Current for Each String	10A/15A	10A/15A	10A/15A	10A/15A
Rated Output Current	20A/30A	40A/60A	50A/75A	60A/90A
Input/Output Connectors	PG7 (Input) / PG21 (Output)
Safety Components	DC Circuit Breaker & Special Lightning Protection Included
Protection Degree	IP65 (Mainstream Specs) / IP45 (Standard)
Environment Temperature	-25℃ ～ +60℃
Altitude	≤ 3000m

Product Display

ABS Engineering Plastic Type

Stainless Steel with Outdoor Coating

Frequently Asked Questions

Q1: What is the primary purpose of a PV Array Combiner Box? The PVB series combiner box is designed to aggregate multiple strings of solar panels into a single output, reducing the amount of wiring needed between the solar array and the inverter while adding essential protection layers.

Q2: Can the PVB series be installed outdoors? Yes, the product is designed for outdoor durability with an IP65 protection rating, making it resistant to dust and water in harsh environments.

Q3: What safety protections are included in the unit? The unit includes high-voltage lightning protection (SPD), DC fuses for overcurrent protection, and optional anti-reverse diode modules to ensure complete system safety.

Q4: Does the combiner box support high-voltage systems? Yes, it supports a wide DC input voltage range, with a maximum open-circuit voltage of up to 1000V.

Q5: Is customization available for specific project requirements? Absolutely. The number of input channels, rated current, and connector types (PG glands or MC4) can be customized to fit your specific photovoltaic power station scenario.

Q6: What materials are used for the enclosure? We offer both ABS engineering plastic types and stainless steel enclosures with outdoor coating processes to meet different environmental and durability needs.