[RESOLVED] Planer power - shouldn't be 45 amps

Woodshop
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Page 10 of the operation manual says a 30Amp breaker is recommended. [EDIT: Correct info - 40A breaker is recommended].

This suggests to me that the manufacturer expects a lot less than 45 amps. Does this mean there’s something wrong with the planer if it’s generating surge current of over 45 amps?

Someone needs to confirm this. While I really hate to keep jerking around the engineer, we need to know this before we actually build …

@Mrksls2 - do you have any thoughts about it?

EDIT: Quote is from @Robert_Davidson - it’s not obvious that Talk carried that over correctly.

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Keep in mind its probably inrush or Locked rotor amps. Typically 2.5-3 times the full load amps. Go with what the manufacturer says.

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Have we ever replaced this breaker?

Also does anyone have any info on the panel or breakers we are using?

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EDIT: Stan says it is on Main 4, breaker 32. I have replaced my photo.

Dunno if the breaker has ever been replaced. That might be worth a try …

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But I think I need to back up. I think I gave some bad information.

Is the planer running on single phase 208V? Because if it is running on single phase, then the manufacturer recommends 40A breaker.

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Can you get a look at the motor plate on the planer?
It should say

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Um, no, I’m not at the space.

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IIRC its 1ph

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So the four on the bottom of page 23 all seem plausible, four being least likely. I believe it’s a 3ph I’ll be at space for a tour tomorrow and pop in to check

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It is most certainly single phase. We used the jointer drop before the planer had a power drop.

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The circuit drawings that Chuck Graf drew also suggest it’s running on a single phase 30A circuit.

In which case … manufacturer recommends 40A breaker and we have it on a 30A breaker.

:poop: That could explain a lot …

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That & they suggest 230 instead of 208.

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My bad I was thinking of the model number being 209hh and went stupid lol

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Is 240v single phase the same as 230v single phase in the same way as 110v, 115v, 120v are the same?

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At 208 volt you are going to see additional current so it would not be uncommon to bump up the current capacity of the breaker to handle the surge current.

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Your absolutely right it’s the initial surge current I have graphs of the power consumption if you would ever like to see them but from what I am seeing the breaker as it is can not handle the surge current.

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Are those breakers rated for a set number of trips? I’m sure that breaker has been tripped quite a few times, but I don’t know the expected behavior of repeatedly being tripped over time.

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Panel 4 breaker 32.

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Breakers tend get weaker as they trip more, In my experience anyway.

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Likely I don’t know the details but that is common on most breakers.

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At 208 volts that’s 44.23 amps which is pretty close to what Robert said is being observed. Sounds like a new and thicker line needs to be run that’s capable of 50 amps or more. Or wait until the move?