The Bluewater Heavy-Duty Busbar has eight 3/8-16 stainless steel studs on a rugged base, rated to 600 amps.
Six hundred amps is a substantial rating, suiting battery connections, inverter links and grounding on a large DC system. The rating has to exceed the highest current the busbar will ever see, not the normal load, since a bus carrying several circuits sees their sum during a fault.
Eight studs give room for multiple large cable terminations in one place, which is what a busbar is for. The alternative is stacking lugs on a battery post, and a stack of four or five terminations on one post is difficult to torque properly and impossible to service without disturbing every connection.
Three-eighths-sixteen stainless studs take standard heavy lugs, and the stud size should be matched to the lugs already in hand. Corrosion-resistant construction throughout suits a battery compartment where the bus lives permanently. Explore more bus bars and power distribution.
- 600A covers the sum of circuits during a fault
- Rate for the worst case, not the normal load
- Eight studs beat stacking lugs on a battery post
- A stacked post cannot be serviced without disturbing everything
