I ran into a problem trying to replace the bus bar. There's a dark green wire that passes through the bus bar. It seems to be stripped a little where it contacts the bar.
Can I cut that wire and attach both ends to this new bus bar?
Also, one of the white wires is twice as thick as the others. Should I do anything different with that wire? Maybe place it in the "block" thing on the top?
Great pics! we can see exactly what you are talking about.
In this pic,
Yes, a solid copper wire passes through the bus bar is a ground wire. The end that goes down through the floor bolts to the trailer metal frame. The other end goes up into the power center on the incoming earth ground buss bar.
From what I know, in a camper, Yes, you can cut the solid wire and insert each end under a separate screw in your new buss bar since you have lots of extra terminal spaces. I would clean up the tarnish on the wire ends before putting them into the terminal strip to make better contact. In this case, of a camper that has DC negative and earth ground common with each other, I do not know of an EE code that requires a continuous wire between the chassis frame and the incoming earth ground buss bar. If someone else has some input on this, please chime in.
If you want to keep the bare wire continuous, then unhook the bare wire on the incoming shoreline cord ground wire buss bar, pull the wire back enough to get the bare wire out of the old buss bar, and slide the new buss bar down the wire and hook the wire back up to the incoming ground buss bar.
The heavy white wire is the DC (-) negative wire that runs to the negative wire on the power converter board. Now, does that larger white wire go into the large lug on top of the bus bar? The answer I have is, it depends. That large lug is made for a large wire. The OD of the wire hole circle is big for a big wire. Sometimes, they stamp in the side of the block the awg size of the wire that will adequately clamp under the large screw. If it is not stamped, it is in the manufacturer's spec sheet. You do not want to put too small a wire in that large hole as the screw may not tighten against the wire correctly, the screw may hit the side of the hole circle and not clamp the small wire. So, yes it depends if you can use that large lug.
But, there is something else that needs to be looked at and you may need to increase the awg rating of that large white wire.
You stated this
I'm trying to hook up a new 12V DC fan in my Sunline RV with a Magnetek 6300 Series 6332 (newly upgraded with the PD4600 converter and DC distribution panel).
I looked up the 6332 Magnetek converter, and it was listed as 32 amps of DC power. The larger white wire Sunline used from the power converter negative to the buss bar would handle the 32 amps.
You are upgrading to an excellent PD 4600 series power converter and DC distribution panel. But, the 4600 series is made:
Model PD4635 (35 Amp)
Model PD4645 (45 Amp)
Model PD4655 (55 Amp)
We do not know what amperage power converter you have. The reason for bringing this up is that the large white wire we are talking about needs to have an AWG and class of insulation rating to handle the full load of the power converter, whatever it is. Sunline put in a large enough wire for the power converter at the time, but your new converter may be larger, which is OK, but you need to check the size you have now and then determine if it will handle the new power converter. If it does not, you need to get a larger AWG wire with the correct temperature class of insulation, which may fit OK in the larger lug on top of the bus bar. Again, the new wire needs to be OK to work with the larger lug.
If this comes out that the large lug rating will still not clamp on your new wire, then put the DC negative wire under one of the green lugs on the bar.
Does this make sense to you now?
Hope this helps.
Johh
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