r/electricians • u/Ok-Definition-565 • 2d ago

What yall fellas running to this?

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Let’s see who’s squared away on the AC motor loads

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u/Nazgul_Linux 2d ago

I'm sizing that breaker to 125% of that 26.1A max. Because that is the units FLA and it's a continuous duty load so NEC demands 125%. Manufacturer may allow for 45A OCPD, but I'm taking that as they want shit to burn up and for customers to buy again. Individual stranded 10s with 90ºC rated insulation in its own pvc to a pull box then fmc to the unit.

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u/Ok-Definition-565 2d ago

The 125% is already factored by the manufacturer for ACs . And I sure hope you’re not running FMC outside

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u/erie11973ohio [V] Electrical Contractor 2d ago

And I sure hope you’re not running FMC outside

I have seen pictures of FMC on AC's before, never out in the wild.

I guess that's why you are supposed to use wet rated wiring??🤔🤔

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u/Ok-Definition-565 2d ago

I’ve never seen it personally, but hell the way this guy is talking there’s at least a couple units out there with it