Equipment choice

Tiethilo
Tiethilo Registered Users Posts: 1 ✭
edited September 2016 in Solar Beginners Corner #1
Hey all,

We've got many power outages in Guatemala so we're setting up a UPS system that we're thinking to add a micro Hydro turbine to later. I'm getting six 29-size 12V deep cycle batteries that will be wired for a 24V 2000W AIMS LF inverter charger. The question i have is which cable size to use between (1) the batteries (touching) and (2) the batteries & the inverter (1 foot distance) and which kind of circuit protection to use. The inverter has a 6kW surge rating (20s), but i believe cables are chosen for the continuous rating, right? I found a circuit breaker rated for 150A on Amazon which seems appropriate, doesn't it? I'd rather not use an external DC fuse (there should be an internal one in the inverter, right?) as replacements might be hard to come by here and a hassle.
Am I forgetting anything else?

Thank you for any pointers!
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #2
    What does the equipment manual recommend for fuse or breaker ?
    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

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  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,889 ✭✭✭✭✭✭
    #3
    Usually we protect the wiring. A 6 KW 24V would need 4/0 cables and a 250A breaker rated for DC.
    IF you use the 150A and 2/0 cable you should be fine. As Mike said the manual should guide you!
    "we go where power lines don't" Sierra Nevada mountain area
       htps://offgridsolar1.com/
    E-mail offgridsolar@sti.net

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  • Johann
    Johann Solar Expert Posts: 245 ✭✭✭
    #4
    I found a circuit breaker rated for 150A on Amazon which seems appropriate, doesn't it?
    Tiethilo said:
    I found a circuit breaker rated for 150A on Amazon which seems appropriate, doesn't it?
    Is it a DC breaker?


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