I think its an older model
Thank you!Yes I think so , epever are a medium quality brand . The good end of the cheapo imports ...
there are better, higher quality, more reliable MPPTs out there ,. but obviously for a LOT more money.
That one you just posted looks suitable for 2x panels in series voltage wise (37voc x 2 = 74voc) , but the panels can output more than their Voc when it's cold out
Use this calculator with all the panel specs:
Solar panel maximum voltage calculator - How to work out the max voltage
To get the maximum solar panel voltage you should expect from your solar panel, use our solar panel maximum voltage calculator.gold-coast-solar-power-solutions.com.au
It comes to roughly 84v for 2 panels in series, and then you'd need 20% clear blue water above that as a safety buffer , 110v~ . Well under that epever's 138v max
And it says 800w max input , again no issues there
Thank you again for your help!
I also think about accidentally touching the battery charging cable whilst its pumping out 60amp I going to blow me to France.
A "user defined" battery setting is often better than a lithium setting. The ability to turn off equalization (or set eq time to zero) is crucial.little concerned that this model does not support lithium should I want to upgrade the battery bank in the future.
I was thinking more of the cables that come out of the mppt at 60 amps would give me a tickle ? iv had a few 12v shocks, no concerns there ?Also don't forget it's 12vdc , not particularly dangerous ... A man once told me the only way you could kill someone with a 12v battery is hit them over the head with it ! ?
Now your solar side is a different story, 2 panels in series 70v+ that'll give you a jolt
Ok so this controller would leave me okay with a battery upgrade, thats great to know. Thank youA "user defined" battery setting is often better than a lithium setting. The ability to turn off equalization (or set eq time to zero) is crucial.
Having a good read of the somewhat vague manuals and data sheets for the solar panels, I need to look at grounding and a circuit breaker before the mppt and possibly after should the charge controller fail?
I know from the charge controller I will have 60 amps to break.
From the panels to controller because I'm wiring in series it will be the individual value of amps from one panel, if iv been listening right? ? I need to double check what that actually was!
Id I remember right the epever manual recommends 16mm cable, I think you also send me a link along those lines tooWhat size cable are you going to use for mppt > battery?
Brilliant, if a fuse will do the job I shal order one of them. Presumably just the one on the live.Fuse or a circuit breaker either will do.
Fuses work out cheaper because you need a special 'dc rated' circuit breaker and they cost a bit
look at this 100a mega fuse for between MTTP > batteries
and also this DC 20amp breaker for solar panel > mppt
It's good to have an breaker between the panels and the mppt . Your mppt is ok to have JUST battery power , but it does not like to have JUST solar no battery (it can blow the mppt).
The actual machine in the mppt runs off the batteries, not the solar, if that makes sense ?
Perfect , looks like we are in business!yes sorry lol 16mm is good.
Fuses should be 20% above the max amps power , at least 75amp for your mppt .
But 100amp is fine so long as the cable is still protected ( 16mm cable max rating is 100 amp so all good)
Perfect , looks like we are in business!
Just need to work out the grounding cable size from the panels, any ideas on this front?
Yes I see the mixed opinions when it comes to grounding, might just do it for the safety aspect.Groundings not something I've looked into much , I know people here have different ideas , some do some don't
I'm not sure about it
There will of course be code differences between countries.
I think I'm right in saying there's no codes covering off grid installation in the UK
I guess there's questionable what counts as a structure
Either way you should understand the code pertaining to this safety issue in the most similar situations where code exists, and implement the appropriate level.
Am I okay with a 63amp breaker between the mppt and batteries?Fuse or a circuit breaker either will do.
Fuses work out cheaper because you need a special 'dc rated' circuit breaker and they cost a bit
look at this 100a mega fuse for between MTTP > batteries
and also this DC 20amp breaker for solar panel > mppt
It's good to have an breaker between the panels and the mppt . Your mppt is ok to have JUST battery power , but it does not like to have JUST solar no battery (it can blow the mppt).
The actual machine in the mppt runs off the batteries, not the solar, if that makes sense ?