Quick question regarding connecting solar panel wires. (1 Viewer)

Mar 30, 2022
1,545
1,488
Funster No
87,744
MH
Swift Suntor 590RL
I am about to add a second identical solar panel to my existing set up.
Present set up is a 100 watt panel to a Victron MPPT.
I have already checked and both my existing cabling and MPPT will be fine with the extra panel.
I plan to cover both panels so there is no output, unplug the existing panel MC4 connectors, plug both panels MC4 connectors into 2 x 2 to 1 MC4 connector in parallel, plug into the existing roof cables that go to the MPPT, then uncover both panels.
Is this an acceptable method ie covering the panels to stop output whilst unplugging then plugging in ?
 
Dec 3, 2021
295
390
Surrey, UK
Funster No
85,713
MH
6m Campervan
Yep, that will be fine. You don't really need to cover them up as MC4 connectors have no exposed terminals. But your method is fine
 
Upvote 1
OP
OP
H
Mar 30, 2022
1,545
1,488
Funster No
87,744
MH
Swift Suntor 590RL
SeanF1 thanks for confirming that.
My reason for stopping output by covering the panels wasn't because of any possible shorting worries with the MC4's but I wasn't sure if I could blow a fuse or cause any damage to the MPPT if connecting the panels whilst they were producing power.
 
Upvote 0
OP
OP
H
Mar 30, 2022
1,545
1,488
Funster No
87,744
MH
Swift Suntor 590RL
After some faffing about, sheared a bolt removing one of the cross bars and then when re-attaching one of the cross bars stripped the thread of the captive retaining plate whilst turning the bolt with my fingers, both sorted, I now have a second 100 watt panel attached to my roof rails.
The existing roof mounted panel and the new roof rail mounted panel are connected in parallel and go to a Victron 75/15 Bluetooth MPPT.
If there is some sun tomorrow I'll put a load on my leisure batteries and see what output I get compared to the single panel.
Presumably it should be double đź‘Ť
 
Upvote 0

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top