April 12, 20233 yr Hello, This is my first post and I will be grateful for someone to answer my questions below: I need some advice on adding a solar panel to my current setup. Current setup: Mecer-Ivr-2400mppt 24v inverter 2 x 120ah lithium batteries Solar Panel: 1 x 450w Solar panel(Spec below) Solar panel Specs of the inverter: Inverter Specs My questions are: 1. What size cable from the solar panel to the charge controller should be used, 4mm2 or 6mm2? 2. What size DC breaker should I use between the solar panel to the charge controller? 3. Should the breaker be closer to the solar panel or charge controller? 4. Should I earth the panels, if so, can I use something like this Earth Spike My panel is not mounted on the roof, going to make a ground mount stand. My current load demand is 250wats.
April 14, 20233 yr On 2023/04/12 at 10:46 PM, marhsava2 said: 1. What size cable from the solar panel to the charge controller should be used, 4mm2 or 6mm2? Either will be safe with one panel On 2023/04/12 at 10:46 PM, marhsava2 said: 2. What size DC breaker should I use between the solar panel to the charge controller? 15 amp DC breaker and or fuse On 2023/04/12 at 10:46 PM, marhsava2 said: 3. Should the breaker be closer to the solar panel or charge controller? Closer to the inverter/charge controller On 2023/04/12 at 10:46 PM, marhsava2 said: 4. Should I earth the panels, if so, can I use something like this Earth Spike Always earth your panels preferably to your common system earth point.
April 14, 20233 yr 15 minutes ago, Superfly said: your typing skills are good No - one finger typer this side, but super good at copy/paste 🤣
April 14, 20233 yr Author 1 hour ago, WannabeSolarSparky said: Always earth your panels preferably to your common system earth point. Can I earth my panels with a new earth spike(like this Earth spike) and not my common system earth point?
April 14, 20233 yr 2 minutes ago, marhsava2 said: Can I earth my panels with a new earth spike(like this Earth spike) and not my common system earth point? yes, you can do.
April 14, 20233 yr 1 hour ago, Superfly said: @WannabeSolarSparky I was in the process to answer the same... LOL - your typing skills are good ... I spend half the time correcting spelling than anything else... :( You are both slow as it took days before your answers were seen on the OP 😜😜😜😜
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