Photovoltaic power combiner box ex-factory price

The typical 2026 ex-factory (FOB China) price for a standard 6-in-1 or 8-in-1, 1500V DC, IP65 PV combiner box ranges from approximately $50 to $310 per unit, depending on quality, components, and certifications.

Price Range and Factors

PV combiner box prices vary widely due to differences in internal components, enclosure quality, certifications, and optional features. Basic 6-in-1 or 8-in-1 boxes with IP65 protection and CE certification can start around $50 per unit, while higher-end models with premium surge protection devices (SPDs), branded fuses, and full monitoring capabilities can reach $310 per unit . This wide range reflects differences in component quality, safety features, and manufacturer reputation.

Cost Structure

The main cost drivers for a PV combiner box include :

• Internal DC components (40–55%): SPDs, PV fuses, fuse holders, DC load-break switches, MCBs or MCCBs, and copper terminals.
• Raw materials (15–20%): Copper busbars, steel or high-grade plastic enclosures, and internal wiring.
• Enclosure and ingress protection (10–15%): IP-rated gaskets, cable glands, UV-resistant coatings, and door hardware.
• Certification and compliance (5–10%): IEC, TÜV, CE, UL, and RoHS testing costs amortized across units.
• Labor and quality control (8–12%): Skilled assembly, torque-controlled terminal tightening, insulation testing, and IP verification.
• Packaging and export preparation (3–5%): Fumigated cases, labeling, and pallet securing for shipping.

Additional Considerations

• Bulk orders: Larger quantities often reduce per-unit ex-factory prices due to economies of scale .
• Customization: OEM branding, custom busbar layouts, or cable entry modifications can increase costs .
• Safety and monitoring: Boxes with integrated monitoring, ground fault detection, or advanced surge protection justify higher prices but improve long-term reliability and reduce maintenance costs .

Summary

For 2026, a realistic FOB China price for standard PV combiner boxes is $50–$310 per unit, with the final price depending on string count, voltage rating, IP protection, internal components, certifications, and optional monitoring features. When planning procurement, it is important to balance cost with quality and safety to ensure long-term system reliability and compliance with electrical standards .