Protect every string, panel by panel.
A ground fault or a shaded panel shouldn't take down the whole array. This inline MC4 fuse holder drops straight into your PV string and gives each branch its own overcurrent protection — no combiner box, no DIN rail, no extra wiring. Just plug it between the panel and the rest of the string and slide in a standard 10×38mm solar fuse (1A to 32A, your choice). If a fault hits that branch, the fuse blows — and every other panel keeps running.
The housing is UV-stabilized PPO rated UL94-V0, with tin-plated brass contacts for low resistance and corrosion resistance. Once mated it seals to IP67, so rain, dust, and snow never reach the fuse element. Rated for 1000V / 1500V DC working voltage, tested to IEC 62852, and built for -40°C to +85°C rooftop service. The screw-off end cap makes fuse swaps fast even on the roof — no special tools.
Sold as one inline fuse holder (male to female). Fuse cartridge not included — pick the amperage that matches your string.
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