#112 in Power generators & accessories
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Reddit mentions of MidNite Solar CLASSIC 150 Charge Controller, 150 Operating Voltage, Max Current Out 96 Amps, ETL Listed to UL1741 and CSA, Type 1 Environmental Rating, Terminals are Rated for 75°C
Sentiment score: 1
Reddit mentions: 2
We found 2 Reddit mentions of MidNite Solar CLASSIC 150 Charge Controller, 150 Operating Voltage, Max Current Out 96 Amps, ETL Listed to UL1741 and CSA, Type 1 Environmental Rating, Terminals are Rated for 75°C. Here are the top ones.
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150 operating voltageMax current out 96 ampsExclusive HyperVOC extends VOC limitsBuilt in DC-GFP and Arc FaultSolar, wind and hydro MPPT modes
Specs:
| Color | Black |
| Height | 6 Inches |
| Length | 14.9 Inches |
| Size | 14.9x6x4" |
| Weight | 12 Pounds |
| Width | 4 Inches |
You commented that you want to charge at 500A. It took a while for that to sink in. The heat that will generate can't be cost effective.
 
Check out this page http://www.sunshineworks.com/solar-charge-controllers-high-capacity.htm. (Yeah random search result)
If you can charge at 48V instead of 12V your current (and required number of controllers) will drop proportionally.
Check requlations about any wiring IaNaL. But you could go beyond 48V.
30 amps @ what? 110v AC? 12v DC? Important to know the actual power consumption. :)
If it's anything like the standard well pumps I know of, it's 30 amps @ 110v or maybe even 220v.
That's over 3000 watts either way. That's a heck of a system, even if it only needs to run for an hour a day. (And unless it's real far from the house, you may want to just combine the two systems.)
Since we're talking about a 'full home scale' system possibly here:
Midnite Solar's Classic 150 Controller:
www.amazon.com/Midnite-Solar-Classic-150-Controller/dp/B007PHMSN8/
You'll need ~2000 Watts (2 KW) of panels, assuming 'decent' sun exposure for the array, and assuming that well pump doesn't run more than an hour a day.
Based on that the pump will not run very much, I'd say a 12,000 Watt-hour battery bank is fine.
Now, I'd wire that in 24v or 48v; Not 12 volts. The reason is that you won't have to use large metal bars as wires this way. (And it's actually 'safer' if you are doing it right. :D)
If you go with some good quality AGM or Gel-cell batteries, that'll give you a max depth of discharge of 50%, which means 6,000 Watt-hours (6KWhrs) of usable power. During the day, you'll be able to charge that back up assuming 3 hours of good sun exposure. (You will probably have more, but just to be safe.)
You'll also need (assuming that the well is 30 amps @ 110 / 120v AC) a 4000 watt inverter with decent surge capabilities. It will need to be a pure sine inverter, as you're running a giant AC motor off it.
Your Inverter will need to match your battery bank voltage as well, of course.