01/29/2023 - added 4 connector version - added pics showing flexible wire use and battery connector (nickel plated steel) buss bars.
The model has two parts, the block & the cover. The block has slots for ¼" female quick disconnects (used for fuse connections) and pairs of Anderson Powerpole 15/30/45 amp connectors. The powerpole connector pairs may need to be tapped into place for a flush fit of the bottom of the mating interface. Ridges in the opening fit into the depressions on the connector pair. Quick disconnects may also need force to press into place until flush. Crimped connections should be made prior to assembly in the block. CA glue applied to the connectors at the back side of the box can help prevent the connectors from coming out when fuses are removed.
No support is needed. Wire connector should be short enough to fit under the cover, or flexible.
The pics of the 4 connector version show use of flexible wire (silicon covered stranded copper) and battery connector (nickel plated steel tape) buss bars.
The author marked this model as their own original creation.