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China Solar PV Combiner Box with SPD - Efficient Lightning Protection from Leading Suppliers & Factory

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PV combiner box, DC combiner box,solar combiner box

China Solar PV Combiner Box with SPD - Efficient Lightning Protection from Leading Suppliers & Factory

Introducing our Solar PV Combiner Box with SPD, an essential component for photovoltaic systems, manufactured in China by leading suppliers. This high-quality combiner box boasts an IP65 protection level, ensuring exceptional waterproofing and dustproofing to withstand the challenges of complex outdoor environments. With superior lightning protection features, our built-in lightning protection module is designed to endure both direct lightning strikes and induced lightning, safeguarding your system's integrity, This product efficiently converges currents from multiple PV modules, significantly reducing the number of connecting wires, which in turn lowers line losses and enhances overall system efficiency. Trust our factory's expertise and innovation in delivering reliable solar solutions for your photovoltaic needs
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    Product Details

    ⚡ Product Introduction

    This outdoor photovoltaic combiner box is a high quality choice for photovoltaic systems. It is specially designed for outdoor PV systems, offering robust protection, flexible configuration, and easy installation to ensure stable and safe operation in demanding environments.

    🛡️

    IP65 Protection Grade — Effectively withstands wind, rain, sand, dust, and other harsh outdoor environments.

    🔒

    DC Fuse Protection — Each PV array is equipped with DC fuse protection, plus optional anti-reverse connection protection for double safety insurance.

    ⚙️

    Wide DC Voltage Input — Maximum open-circuit voltage of 1000V, suitable for a variety of application scenarios.

    ⛈️

    PV High-Voltage Lightning Protection — Dedicated PV-grade surge protection for efficient and reliable lightning defense.

    🔌

    PG Cable Connector Input — Convenient and safe wiring with PG-type waterproof cable connectors.

    🔧

    PV High-Voltage Circuit Breaker — Dedicated DC circuit breaker for control output, ensuring stable and reliable operation.

    💧

    Waterproof Output Terminal — Specially sealed output terminal to prevent rainwater intrusion and protect internal components.

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    Wall-Mounted Design — Easy to install and can be quickly integrated into various types of photovoltaic projects.

    📋 Product Parameters
    Type Designation PVB-12 PVB-14 PVB-16 PVB-18
    Max. PV Array Input String 12 14 16 18
    Max. PV Array Voltage 1000Vdc or 1500Vdc Optional
    Rated Current for Each String (Replaceable) 10A / 15A 10A / 15A 10A / 15A 10A / 15A
    Rated Output Current 120A / 180A 140A / 210A 160A / 240A 180A / 270A
    Input Cable Waterproof Connector PG9 (4mm PV cable)
    Output Cable Waterproof Connector PG21
    Output DC Circuit Breaker ✔ Yes
    PV Special Lightning Protection Module ✔ Yes
    Anti-Reverse Module Protection Optional
    Communication Interface (Optional) RS485
    Protection Degree IP65
    Environment Temperature －25 ～ +60℃
    Environment Humidity <90% No condensation
    Altitude ≤ 3000m
    Installation Location Indoor / Outdoor
    Type of Installation Wall Mount
    Box Material Iron with Powder Coating
    ❓ Frequently Asked Questions
    💬 What is the IP protection rating of this outdoor PV combiner box?
    This combiner box carries an IP65 protection rating, meaning it is fully dust-tight and protected against water jets from any direction. This makes it well-suited for outdoor photovoltaic installations exposed to rain, wind, sand, and dust.
    💬 What is the maximum DC input voltage supported?
    The combiner box supports a maximum open-circuit voltage of 1000Vdc as standard, with an optional 1500Vdc configuration available. This wide voltage range makes it compatible with a variety of PV system designs and module configurations.
    💬 How many PV input strings can this combiner box support?
    The product is available in four models: PVB-12 (12 strings), PVB-14 (14 strings), PVB-16 (16 strings), and PVB-18 (18 strings). Each string is individually fuse-protected for maximum system safety and fault isolation.
    💬 Does the combiner box include lightning protection?
    Yes. The unit is equipped with a dedicated PV-grade high-voltage lightning protection (surge protection) module as a standard feature. This provides effective defense against lightning-induced voltage surges, helping to protect both the combiner box and the connected PV system components.
    💬 Is anti-reverse connection protection included?
    Anti-reverse connection protection is available as an optional feature. When selected, it provides an additional layer of safety by preventing damage caused by accidental reverse polarity connections during installation or maintenance.
    💬 What are the installation requirements for this combiner box?
    The combiner box uses a wall-mounted design for simple and fast installation. It is suitable for both indoor and outdoor environments, with an operating temperature range of −25°C to +60°C and an altitude limit of ≤3000m. The enclosure is made of powder-coated iron for durability and corrosion resistance.

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