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What wire for my compressor motor?
- Thread starter jtuttle4
- Start date
1969
Well-known member
#10 should be fine.
wyliesdiesels
Well-known member
Its 5HP so you need 35a wire- NM 10/2 is too small so #8 NM or #10 in pipe.
How far away is the panel?
How far away is the panel?
Last edited:
bczygan
Well-known member
Its 5HP so you need 35a wire- NM 10/2 is too small so #8 NM or #10 in pipe.
So let me hijack this.
5HP compressor motor, but also want a circuit for a Lincoln AC/DC Tombstone.
Can they be the same circuit?
Bill
wyliesdiesels
Well-known member
So let me hijack this.
5HP compressor motor, but also want a circuit for a Lincoln AC/DC Tombstone.
Can they be the same circuit?
Bill
Doubt it.
Whats the input rating on the welder?
bczygan
Well-known member
Doubt it.
Whats the input rating on the welder?
Does the compressor need to be hard wired?
Bill
wyliesdiesels
Well-known member
Does the compressor need to be hard wired?
Bill
yup unless an outlet with at least 5HP rating is used.
bczygan
Well-known member
OK.
Separate hookups.
Bill
Separate hookups.
Bill
sberry
Banned
Unless there was some reason I absolutely had to share I would want a line for each. Top me air is a utility like water, wouldn't want to hook up a hose every time I wanted to flush.
Its 5HP so you need 35a wire- NM 10/2 is too small so #8 NM or #10 in pipe.
How far away is the panel?
Sounds good, I'll go with #8 then. Panel is about 20' straight line distance but will be close to 50' of wire.
From what your are saying, am I going to be ok with a 30A breaker or will I need to bump it up?
wyliesdiesels
Well-known member
Sounds good, I'll go with #8 then. Panel is about 20' straight line distance but will be close to 50' of wire.
From what your are saying, am I going to be ok with a 30A breaker or will I need to bump it up?
Is the panel in sight of the compressor? If not, then a disconnect is required.
You can try a 30a. It may nuisance trip. If it does you can go to 40a breaker.
matt_i
Well-known member
I would make sure a #8 wire will fit into/under whatever terminal you have at the air compressor...if its just a pressure switch (mine is) there is no way a #8 will fit. Even #10 is a tight squeeze as I recall.