I came across these while working on Freightliner Semi trucks in the army. They are small interlocking blocks about 1.5" x 1.5". They had some that were fuse holders, relay holders, circuit breaker holders, power terminals.... and they all locked together like puzzle peices and then all the wires came out the back. I searched all over freightliners web sites and found no info. Does anyone know where I can buy something like this?

 

Here I made a little sketch of what they looked like, hopefully this helps explain what Im looking for.

 

Anybody?

 

i know that painless wiring has modular fuse block and relays. they are not the same thing you are lookig for, but very simillar.