No I always call the customer service.

PowGrow PV Combiner Box, 6 String Solar Combiner Box with 15A Rated Current Fuse, Surge Protective Device and 63A Air Circuit Breaker for ON/Off Grid Solar Panel System, Pre-Wired Cable, Metal Box

PowGrow PV Combiner Box, 6 String Solar Combiner Box with 15A Rated Current Fuse, Surge Protective Device and 63A Air Circuit Breaker for ON/Off Grid Solar Panel System, Pre-Wired Cable, Metal Box

Q: Have three strings. I need a 20 amp fuse for one of them, can I replace one of the 15 amp fuses with a 20 amp and keep the remaining fuses 15 amps?

For your case, please ensure the three strings' total voltage are close or the same to each other.

Q: My panels have 8.9Amp.Should that be protected by 10Amp fuse?

This does not matter. 10Amp and 15 Amp are both can be used. We offered 15Amp.

4.8/5

Product ID: 449323831

Secure Transaction

⚡15A fuse x6 for overload safety

🌩️Surge Protective Device guards against lightning

🛡️63A air circuit breaker for short-circuit protection

Frequently Bought Together

PowGrow PV Combiner Box, 6 String Solar Combiner Box with 15A Rated Current Fuse, Surge Protective Device and 63A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable, Metal Box

SUNMAK 16 Units per Set Solar Panel Mounting Z Brackets, Solar Panel Mounting Brackets Lightweight Aluminum Corrosion-Free for RVs, Trailers, Boats, Yachts, Wall and Other Off Gird Roof

GEARit 12AWG Solar Extension Cable (100FT Black - 100Ft Red) Male to Female Solar Connectors with Adapter Tool Kit, Solar Panel Renewable Energy, 12 Gauge Pure Copper Extension Cord, 100 Feet

Description

🔋 Power up your solar game with ultimate protection and pro-grade durability!

PRE WIRED FOR PLUG PLAY - Professional-grade solar cables pre-installed for hassle-free, time-saving installation and maintenance.
IP 65 RATED METAL ENCLOSURE - Weatherproof, lockable metal box designed for outdoor durability and long-term protection.
ROBUST 6 STRING FUSE PROTECTION - Six individual 15A fuses ensure each solar string is safeguarded against overload, maximizing system reliability.
ADVANCED SURGE LIGHTNING DEFENSE - Built-in SPD instantly shields your solar setup from damaging lightning strikes and power surges.
HEAVY DUTY 63 A AIR CIRCUIT BREAKER - Quickly isolates faults with a high-capacity breaker, keeping your system safe and operational.

The PowGrow PV Combiner Box is a premium metal enclosure designed for on/off-grid solar systems, featuring six 15A fuses, a 63A air circuit breaker, and a surge protective device. Its IP65 waterproof rating and pre-wired professional cables ensure reliable, safe, and efficient solar power management, making it an essential upgrade for any serious solar installation.