Price of Photovoltaic Power Generation AC Combiner Box
PV AC combiner boxes typically range from $50 to over $500 per unit, depending on specifications, input strings, and protection features.
Typical Price Ranges
- Small residential or off-grid combiner boxes with 4–10 input strings and basic protection features are generally priced around $50–$150 per unit, suitable for low-power solar systems (Amazon listings, inverter.com) .
- Industrial or utility-scale combiner boxes supporting multiple string inverters (2–6 inverters, 60–200 kW) with high-voltage ratings (400–800 V AC) and advanced protections can cost $300–$500 or more, reflecting higher quality, certifications, and durability for harsh climates (Weidmüller) .
- IP65 waterproof, CE-certified, and high-voltage (up to 1500 V) combiner boxes for larger PV installations are available on platforms like Alibaba, with prices varying widely depending on the number of strings and customization options .
Factors Affecting Price
- Number of input strings: More strings increase the size and complexity, raising the cost.
- Voltage and current ratings: Higher voltage (up to 1000–1500 V) and higher current capacity require more robust components.
- Protection features: Overcurrent, overvoltage, surge protection, and lightning protection devices add to the price .
- Customization: Bespoke combiner boxes with monitoring devices or multiple MPPT inputs are more expensive than standard models .
- Certifications and standards: Compliance with IEC 61439-2, CE, or other international standards can increase cost but ensures reliability and safety .
- Delivery and warranty: Fast delivery, global production, and extended warranties may slightly increase the price but provide added value .
Summary
For residential or small-scale PV systems, expect $50–$150 per combiner box, while utility-scale or industrial systems may require $300–$500+ per unit depending on specifications, protection features, and certifications. Prices can vary based on supplier, customization, and shipping options.
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