PowGrow 6-String Metal Solar PV Combiner Box — IP65 Enclosure, 15A Per-String Fuses, 63A Main Breaker

PowGrow 6 String Metal Solar PV Combiner Box consolidates up to six PV strings into one protected output with individual 15A fuses, a 63A air switch and SPD lightning protection inside an IP65 metal enclosure.

This all-metal combiner box is built for small to medium photovoltaic arrays where durability, simplified wiring and overcurrent protection matter. Pre-wired with solar-grade conductors and a grounded internal plate, it reduces cable runs to the inverter, centralizes protection, and adds surge arresting for outdoor installations. The unit supports six input strings, each protected by a 15A glass fuse (10x38mm) and a main 63A breaker on the output.

How does this combiner box simplify solar system wiring?

Instead of running six separate cable runs to your inverter, the PowGrow combiner box brings all string outputs together inside one weatherproof enclosure. That reduces installation time, lowers cable clutter, and centralizes service points for faster troubleshooting.

• Six PV string inputs with labeled terminals for quick connections
• Pre-wired internal conductors reduce field wiring work
• Main output terminal and 63A air circuit breaker for centralized control

What protections are included to keep panels and equipment safe?

The box integrates individual 15A fuses on each string to stop overloads or fault currents from damaging panels or wiring. A 63A air circuit breaker controls and protects the combiner output, while an SPD (surge protective device) offers lightning and transient suppression for outdoor PV systems.

• Six replaceable 10x38mm, 15A fuses for per-string overcurrent protection
• 63A air circuit breaker for output short-circuit and switch control
• SPD/lighting arrester with visual indicator for surge status

Is this combiner box suitable for outdoor installations and harsh environments?

Yes — the unit uses a robust metal enclosure with an IP65 rating and a lockable lid to keep moisture and dust out. The internal mounting plate is also metal, and all wires are solar-grade, making the box better suited to long-term outdoor exposure than common plastic housings.

• IP65 metal housing for dust-tight and rain-resistant protection
• Lockable cover prevents tampering and unintentional opening
• Durable metal internal plate for secure component mounting

What electrical limits and installation notes should I know?

Each PV input string must not exceed 10A at up to 250VDC; the built-in 15A fuses and wiring are sized accordingly. The combiner’s main breaker is rated to 63A, so ensure your inverter and main output conductors match the breaker rating and local electrical codes during installation.

• Max single PV array: 10A / 250VDC per input string
• Six x 15A fuses (10x38mm) and one 63A air circuit breaker included
• Grounding terminal provided; follow local electrical standards for earthing

Who is this for: The PowGrow 6 String Metal PV Combiner Box is aimed at residential and light commercial solar installers, DIY-savvy homeowners, and small system integrators who need a rugged, outdoor-rated combiner that centralizes protection and reduces cable runs. It’s particularly useful where a compact, locked, and serviceable enclosure with surge protection and per-string fusing will simplify maintenance and improve system organization.