WUPP 12-Circuit Fuse Block Panel 12–24V Waterproof Cover with LED Diagnostics, Negative Bus

The WUPP 12 Circuits Fuse Block Panel is a compact, marine-grade DC fuse distribution center with individual LED diagnostics, a negative bus, and a waterproof cover to organize and protect up to twelve 12–24V electrical circuits.

Whether you’re wiring a boat, RV, truck, or custom car build, this WUPP fuse block turns a jumble of inline holders and loose grounds into a neat, serviceable panel. Built from flame-retardant PBT and nickel-plated copper busbars, it combines corrosion resistance with clear fault indicators so troubleshooting and future expansions are straightforward.

How does the LED diagnostic indicator speed up troubleshooting?

Each circuit contains a dedicated LED that lights when its fuse blows or a short occurs, instantly pointing to the faulty circuit. This removes time-consuming trial-and-error testing and reduces downtime on boats and vehicles.

• One LED per circuit for immediate visual fault identification
• Diagnostic lighting works at 12–32V DC systems
• Small residual voltage from LED circuitry is normal and not a safety issue

Can this fuse block handle marine and automotive electrical loads?

Yes. The assembly supports 12–32V DC service, up to 100A continuous total, and up to 30A per individual circuit—suitable for common accessories like pumps, lights, and electronics. Nickel-plated copper components resist corrosion in damp or salty environments.

• Voltage range: 12–32V DC for wide compatibility
• Total continuous current: 100A; up to 30A per circuit
• Nickel-plated copper busbars for conductivity and saltwater resistance

What features keep wiring tidy and safe during installation?

The unit includes a negative bus for consolidated grounding and labeled positions for twelve fuses, eliminating many inline fuse holders and messy grounds. The PBT base is flame-retardant and mechanically robust to withstand vibration and heat common in automotive and marine installations.

• Negative bus collects grounds in one accessible place
• Flame-retardant PBT housing resists cracking and deformation
• Included mounting screws and adhesive labels for organized setup

What comes in the package and how does it simplify first-time installs?

The kit arrives preassembled with twelve fuse positions and a waterproof cover, plus a selection of fuses so you can make common connections right away. Labels, screws, and a robust negative bus are included to minimize additional purchases during initial wiring.

• 12-circuit fuse block with waterproof cover and LED diagnostics
• 24 fuses included: six each of 20A, 15A, 10A, and 5A
• Labels, negative bus, and mounting screws for quick installation

Who is this for? Installers, DIYers, and fleet owners who need a reliable, compact distribution center for DC accessories will appreciate the WUPP 12 Circuits Fuse Block. It’s ideal for boaters, RV owners, off-road vehicles, and custom crafters who want clearer diagnostics, cleaner wiring, and corrosion-resistant materials without complicated wiring additions. If you need expandable circuit protection with easy troubleshooting and a durable build, this fuse block is designed to simplify wiring and maintenance.