The Blue Sea 2104 PowerBar is the four-stud distribution bar in my camper van electrical drawings. Its four large connection points distinguish it from the smaller terminal bars in the system.
My electrical build includes two LOSSIGY 400Ah house batteries, a MultiPlus inverter/charger and separate distribution hardware. The PowerBar provides a common connection point in that equipment list.
I used several styles of distribution bar in the build. The four large studs on the 2104 distinguish it from the ten smaller screw terminals on the Blue Sea 2300 and the eight-stud AMOMD bar.
My build context
The storage-and-distribution detail in my diagram brings together the house batteries, the Blue Sea 9003E on/off switch, the SmartShunt and the distribution components. The PowerBar is one of those named components.
My drawing register gives each item its own reference so a connection bar can be followed to the correct equipment page. That matters when different bars look similar in an overall system drawing: terminal count and physical stud size make the identity clearer.
The storage detail from my electrical-system diagram, including component E19.
For this item, the useful takeaway is the connection layout. Four 3/8-inch studs describe the cable attachment points; the product’s current rating describes a different property. I keep both the model and the physical arrangement with the component record.
When comparing alternatives, I start with how many large connections are needed and the lug-hole size. A smaller four-stud bar and a covered four-post pair offer different terminal dimensions and mounting arrangements from my 2104.
Record the model, stud count and stud size together when documenting a distribution bar.
Alternative products
Two alternatives to compare
The Blue Sea 2127 has four 5/16-inch studs and a different current rating from the 2104. The covered four-post set provides a red and black pair with 5/16-inch studs. These are different distribution layouts to compare, with their own ratings and dimensions.
This pair of covered bus bars provides four threaded connection posts on each bar. The posts have 5/16-inch stud threads for ring-terminal connections.
