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bobkat4 asked

does MPPT get hotter than PWM

I have serious space issues for installing new MPPT controller. Previously had a TS-45 PWM that did not get that hot in confined space below sofa. What about a MPPT 100/50. Does it get that much hotter with 2 200A panels in series? No place else to mount other than immediately next to the 2 12V 100A lithium and inverter below the sofa.

MPPT Controllers
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Alexandra avatar image
Alexandra answered ·

@bobkat4

The mppt instructions say to install it on a non flammable surface.

It will get warm but since you aren't over paneled not too hot, will it be vertical at least for optimal cooling?

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bobkat4 avatar image bobkat4 commented ·

yes, it is mounted on aluminum sheeting, behind and above, with fins vertical. Thanks for your input. have specified clearance top and bottom, but it is in enclosure, and could add CPU fans.

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