Busbar addition.

[jt1313]

Hi all. Im interested in wiring a positive busbar to a perko switches com post. My question is, does there still need to be a fuse between the com and the busbar as the switch (the boats master switch) is already protected. And what size fuse/breaker would be needed if so. Thanks

 

[alldodge]

Hi all. Im interested in wiring a positive busbar to a perko switches com post. My question is, does there still need to be a fuse between the com and the busbar as the switch (the boats master switch) is already protected. And what size fuse/breaker would be needed if so. Thanks

No, it's just good practice
If your running a smaller wire in addition to Bat cable than even better reason for a fuse/breaker

 

[jt1313]

No, it's just good practice
If your running a smaller wire in addition to Bat cable than even better reason for a fuse/breaker

Thanks for the help. What size breaker should i use.

 

[alldodge]

Thanks for the help. What size breaker should i use.

Depends on what size wire and how long it is

Size Chart

 

[jt1313]

Depends on what size wire and how long it is

Size Chart

2/0 about 6 ft

 

[jt1313]

2/0 about 6 ft

Just read the chart you attached. Thank you very much for the assist.

 

[alldodge]

2/0 is direct Bat cable size, so fuse/breaker not needed so much

 

[dingbat]

Hi all. Im interested in wiring a positive busbar to a perko switches com post. My question is, does there still need to be a fuse between the com and the busbar as the switch (the boats master switch) is already protected. And what size fuse/breaker would be needed if so. Thanks

What are you installing that you need 2/0 connected to a busbar?