ahhh, a terminal strip with fuses, or what most would call a fuse box wink like this, or maybe with circuit breakers or modern style fuses rather than glass fuses - and a relay is like this, used mostly in the headlight or horn circuit where you want to avoid having the high current draw in the switch

wiring that fuse/terminal switch in is just like using inline fuses, power from the battery to one side of the fuse, other side to the item being powered - some terminal strips have a single post for the battery side to hook to, if each fuse has individual terminals, you can run the power to a common wire across one side of the strip to catch each fuse position so each one is "tapping off" the same power connection - make sure you use a fairly heavy wire in that case

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics