Take a look at this link:
http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=8120§ion=10928
In my shop, I need to plug in a 3HP Delta Unisaw (it has a 20A, 240V cord cap factory installed, with a ground pin and two flat, horizontal blades) and a 1-1/2 HP Penn State dust collector (which has a household cord cap factory installed). I want to plug these two into the same duplex receptacle, which will go into a floor box that is right below and behind the saw in a perfect spot.
The item in the link seems like it might fit the bill, but it is rated for 2HP and not 3.
I could feed the receptacle from either one breaker or two.
Whaddya know about this?
Replies
Looking at the Levition industrial catalog it appears that ALL 20 amp 250V receptacles are speced at 2 hp and 20amp 125v at 1 hp.
To get 3 hp rating you need to go to 30 amp, 3 phase or 50, single phase 250.
It appears that they are all the same regardless of the configuration. Locking, straight, simplex, duplex, commercial grade, hospital grade, industrial grade. I think that it isa NEMA or UL rating.
I know that there are hundreds of thousand of 1 1/2 hp motor run on 15amp, 125 plugs. That is the way that all contractors saws are shipped and most still used in that configuration.
And likewise many 3hp motors 20 amp/250.
I am not 100% sure, but I think that those ratings for for use as DISCONNECT where you would pull the plug with the motor RUNNING.
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A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
The item in the link seems like it might fit the bill, but it is rated for 2HP and not 3.
I don't put much stock in hp ratings on eguipment. It is mostly sales hype.
I have a Delta Unisaw. Same hype.
More important is the 240v/20a name plate information. I've been running mine on a dedicated 240v/20a circuite for 18-19 years now. No problems, ever.