MPPT 60-150 Max PV Input

Pezquera
Pezquera Registered Users Posts: 12 ✭✭
in General Solar Power Topics #1
I am in the process of replacing my PV modules that are 20 years old. My actual system consist of (3) XW6048 inverters in parallel, (4) MPPT 60-150 and 60 solar cells rated at 220 watts each. , Each MPPT has one combiner with (5) circuits of three cells each. I want to increase the capacity of the solar cells so that I have more power available during low production. My question is what is the maximum power input a MPPT unit will handle without damaging the unit?
The installation instructions say that, and I quote "the PV array size can be as high as 6720 W", is this OK?
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  • SumPower
    SumPower Registered Users Posts: 81 ✭✭
    #2

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  • Pezquera
    Pezquera Registered Users Posts: 12 ✭✭
    #3
    Thanks!!
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  • SumPower
    SumPower Registered Users Posts: 81 ✭✭
    edited January 28 #4
    I would use the info from this data sheet. Versus the oversizing wattage above as the data sheet does not mention anything about oversizing the array to the 7200w.
    Max 5250 PV Array.

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  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,935 ✭✭✭✭✭✭
    #5
    If you live in a hot climate oversizing needs to be well thought out, or just buy another mppt and be conservative! The extra power when clipping is being dissipated as extra heat.
     I have seen the mppt 60 so hot you could not touch it for long. You are fused on the 5 string arrays right?
    "we go where power lines don't" Sierra Nevada mountain area
       htps://offgridsolar1.com/
    E-mail offgridsolar@sti.net

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