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Old 03-23-2012, 07:47 AM
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Originally Posted by loctite
The schulz compressor is made just north of atlanta ga. They have been thier for a lot of years building these. The amp draw on the 7.5 is 33 amps. Its 30 cfm and 80 gall tank. I have a 5 horse 60 gallon 13cfm and it will not run my blast cab. Nor my buffer. It can't keep up. I just bought the schulz compressor 7.5 today and will be picking it up tommorow. If you do some reading on it and also go to the home page it sounds like a real good compressor. Check out the web site schulz compressors. Hope this helps. Randy
Interesting you have documentation that says 33 amps.

The Schulz information I found on the Schulz website says 230v 5.6kw.

Divide kw by volts to get amps.

Maybe the info I saw is a typo, 7.6kw would be 33 amps.

Either way 33 amps will do a lot of work for you.

Run wiring large enough to operate it will be a few more dollars!

The NEC (code) requires that the table 430.238 be used to determine the wire and breaker sizes.
For a 7.5 hp 1 ph 230 volt motor 40 amps is listed in the table.
A load factor is then applied to the 40 amps. 40 X 1.25 = 50 amps. Per table 310.16 - #6 wire is required.
A minimum (nominal) breaker is also 50 amps but can be increased to a maximum size of 100 amps.
For the purposes of the compressor a 60 amp breaker should be used.

source: post #5 New 7.5 hp Compressor. What breaker and wire size??
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