Camper Van
Freedom.

Electrical & Wiring · My build kit

BOJACK 400A MEGA Fuses

The 400-amp BOJACK fuses are one of several separately identified fuse purchases in my electrical kit. Keeping each rating in its own item record makes the parts list easier to follow.

By Steven Smith · Camper Van Freedom

Read my build notes ↓
The larger roof enclosure during my cable-entry work.
The larger roof enclosure during my cable-entry work.

The item in my kit

I bought BOJACK 400A MEGA Fuses as part of my camper van equipment.

The 400-amp BOJACK fuses are one of several separately identified fuse purchases in my electrical kit. Keeping each rating in its own item record makes the parts list easier to follow.

Where it fits my build

I brought the roof light wires and camera cables into a PVC conduit layout. That work included drilled enclosures, threaded fittings, cable glands, solder-seal splices and grouped wiring.

During the small-box stage, I drilled for a male PVC fitting and used a fitting inside as a retaining nut. I routed the camera cable through a gland into a tee and brought the light-wire groups toward the van entry.

A grouped roof-wire connection before the final conduit work.
A grouped roof-wire connection before the final conduit work.

My build notes

The wiring project was a sequence of individual connections and routes. The photographs show the intermediate stages, including open boxes and wrapped wire groups, before the remaining covers and conduit joints were finished.

I built the cable route a section at a time, bringing local connections into the larger conduit system.

Alternative products

Two alternatives to compare

Littelfuse 0298400 and VEXUNGA offer two other 400-amp bolt-down MEGA fuse products, with different brands and package formats.

Littelfuse 0298400 MEGA Fuse

Littelfuse 0298400 MEGA Fuse

This 400-amp MEGA fuse uses a bolt-down connection at each end. The central fuse body carries the rating identification.

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VEXUNGA 400A MEGA Fuses

VEXUNGA 400A MEGA Fuses

These 400-amp MEGA fuses provide a bolt-on strip format. A marked central body separates the two connection ends.

View on Amazon

Questions from my build

What connected the roof equipment to the van entry?

A PVC conduit layout with boxes, fittings and cable glands.

What did I do at the small junction box?

I drilled the box for a threaded PVC fitting and arranged the light-wire connections inside that part of the route.

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