The price of a 4-way PV combiner box typically ranges from $50 to $80 depending on features and brand.

Pricing Examples

• VEVOR 4-String PV Combiner Box: $58.99 at Home Depot, featuring 15A DC fuses, lightning protection, and IP65 weatherproof rating, suitable for grid-tied or off-grid solar systems .
• Amazon 4-in/4-out PV Combiner Box: Prices vary around $50–$70, compatible with most solar panels and MC4 connectors, designed for home PV arrays, RVs, and yachts .
• Online Solar Retailers: Some cost-effective 4-way combiner boxes are available for $55–$75, offering overcurrent, overvoltage, and lightning protection, with maximum open-circuit voltage up to 1000V .

Features to Consider

• Fuse Rating: Commonly 10–15A per string.
• Protection: Overcurrent, overvoltage, and lightning protection.
• Weatherproofing: IP65 or higher for outdoor installation.
• Connector Compatibility: MC4 connectors are standard.
• System Type: Suitable for both grid-tied and off-grid PV systems.

Buying Tips

• Check for UL, CE, or FCC certifications if safety compliance is important.
• Consider future expansion; some combiner boxes allow additional strings.
• Compare enclosure material and IP rating for durability in harsh environments.
• Factor in shipping and installation costs if purchasing online. Overall, a 4-way PV combiner box is an affordable component that consolidates multiple solar panel strings, protects your inverter, and simplifies wiring, with prices generally between $50 and $80 depending on features and brand .