PV Combiner Boxes
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
⚡ 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.
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IP65 Protection Grade — Effectively withstands wind, rain, sand, dust, and other harsh outdoor environments.
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DC Fuse Protection — Each PV array is equipped with DC fuse protection, plus optional anti-reverse connection protection for double safety insurance.
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Wide DC Voltage Input — Maximum open-circuit voltage of 1000V, suitable for a variety of application scenarios.
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PV High-Voltage Lightning Protection — Dedicated PV-grade surge protection for efficient and reliable lightning defense.
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PG Cable Connector Input — Convenient and safe wiring with PG-type waterproof cable connectors.
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PV High-Voltage Circuit Breaker — Dedicated DC circuit breaker for control output, ensuring stable and reliable operation.
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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
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What is the IP protection rating of this outdoor PV combiner box?
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.
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What is the maximum DC input voltage supported?
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.
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How many PV input strings can this combiner box support?
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.
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Does the combiner box include lightning protection?
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.
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Is anti-reverse connection protection included?
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.
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What are the installation requirements for this combiner box?
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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