Factory prices for photovoltaic combiner boxes typically range from $30 to $200 per unit, depending on specifications, IP rating, and customization options.

Price Range and Factors

The cost of a PV combiner box varies based on several factors:

• Number of strings: Common configurations include 4, 8, 12, 16, or 24 strings. More strings generally increase the price .
• Voltage and current rating: Boxes rated for 1000V to 1500V DC or higher may cost more .
• IP rating and waterproofing: IP65 or higher enclosures are standard for outdoor installations, affecting price .
• Certifications: CE, IEC, or UL certifications can increase cost but ensure safety and compliance .
• Customization: OEM branding, busbar modifications, cable entry options, and monitoring features can raise the unit price . Typical factory prices for standard PV combiner boxes start around $30–$50 per unit for basic models and can reach $150–$200 per unit for high-end, multi-string, IP65-rated, or fully customized boxes . Bulk orders often reduce per-unit costs.

Supplier Options

• Alibaba and Made-in-China: Offer a wide range of PV combiner boxes with factory-direct pricing, including IP65 waterproof and 1500V-rated models .
• Shangming: A Chinese manufacturer with multiple production lines, providing fast delivery, standard models, and custom solutions .
• Dehler: Offers factory prices with customization options, including circuit breakers, fuses, surge protection, and monitoring capabilities .

Additional Considerations

• System size: Larger PV plants may require multiple combiner boxes, so total cost scales with project size .
• Maintenance and monitoring: Some boxes include temperature sensors, open/short circuit detection, and remote monitoring, which can justify higher prices .
• Market trends: Smart monitoring and modular designs are increasingly standard, influencing pricing and long-term ROI . For accurate pricing, it is recommended to contact manufacturers directly with your technical specifications, number of strings, voltage requirements, and desired features to obtain a custom factory quote .