help hardwiring new compressor

[cutthroatxxx]

I need help hardwiring my air compressor its s puma 60 gallon Ill add a picture of the wiring diagram,Im not a fan of doing anything electrical so any advice before I start?The only thing Ive done before has been outlets Im about to run&pick up some wire.Should I use seperate wires or like the yellow stuff that comes in a roll like my shop is wired with?Well thanks

 

[wyliesdiesels]

The pic is a bit fuzzy but looks like it says 240v and 30/35amps? What is the HP rating of the compressor? Do not use yellow Romex! That's the wrong gauge- too small. Judging by what you said, you should probably hire someone qualified! If you insist on doing this work yourself and u use romex, you'll probably need 8/2 and a 40amp breaker. You will need to install a fuseable disconnect as well! This is NOT as simple or easy as wiring a few outlets.

 

[cutthroatxxx]

Yeah I have no idea what Im doing I will freely admit that...I stay about 60 miles from the city so Im well off the beating path.I can go pick up whatever is needed Im sure Ill figure it out with a little help ..the hp is 6 running.Weve ran our lift&welders off of this box.I just dont mess with eleectric my grandfsther was a journey man line man back when they didnt use saftery harness while building high tension towers.He said they called there carrer a tour of durty&when he left he was the only one left alive he was then the head of the electrical maintanice of the m.b.t.a. &he scared the **** out of me with all of the eletrical deaths he told me about.

 

[Dick in Wisconsin]

Mr. Throat ... even if you live in the middle of no where, there must be an electrician who will help you out for a few dollar and some beer. Check Craigslist, often moon lighters will post them crafts on CL. Check out their credentials. Good luck.

Please keep us posted. When someone is working on electrical, we consider "no news to be the worst news".

 

[cutthroatxxx]

Will do Ive found 2 guys on cl&neither has shown up&I live in onr of those areas where cl has barely any ads for anything...but I will keep trying&will post back.

 

[Dick in Wisconsin]

Will do Ive found 2 guys on cl&neither has shown up&I live in onr of those areas where cl has barely any ads for anything...but I will keep trying&will post back.

Where do you live? There might be an electrical person right on this Forum who is down the street!

 

[pattenp]

What's the mod # on the Puma you have? The 60 gal ones I've seen list 3HP running with 6HP peak. The amp draw I've seen is around 15-16 amps. I'm surprised the specs are calling for a 35A breaker.

 

[cutthroatxxx]

Yup thats what my motor is...its a pk6060v

 

[wyliesdiesels]

What's the mod # on the Puma you have? The 60 gal ones I've seen list 3HP running with 6HP peak. The amp draw I've seen is around 15-16 amps. I'm surprised the specs are calling for a 35A breaker.

I was gonna say, it seems something is wrong here!

Cutthroat- can u take a pic of the motor nameplate and post it here so we can help u? I have a feeling the directions were translated from Chinese!

 

[cutthroatxxx]

Lol yeah Ill run down there after dinner.Thanks

 

[wyliesdiesels]

Yeah I have no idea what Im doing I will freely admit that...I stay about 60 miles from the city so Im well off the beating path. I can go pick up whatever is needed Im sure Ill figure it out with a little help ..the hp is 6 running. We've ran our lift & welders off of this box. I just don't mess with electric my grandfather was a journey man line man back when they didn't use saftery harness while building high tension towers.He said they called there carrer a tour of durty&when he left he was the only one left alive he was then the head of the electrical maintanice of the m.b.t.a. &he scared the **** out of me with all of the eletrical deaths he told me about.

What box are u talking about? Have a pic?

FYI- lineman work is different than inside wiring work!

 

[cutthroatxxx]

Yeah I get that...I lived under his roof then under my other grandfathers roof who was the head of maintaince on the ss admiral then later on@borden so Ive understand its diffrent I just never got into it.The house I own now my grandfather built,wired&plumed hisself.

 

[Gary S]

Identify the compressor first. Tank size is meaningless for wiring. If it is the 3hp model, you do not need a 35 or 40 amp breaker. I have a true 5hp model that draws 21 amps, and it runs all the time on a 30 amp breaker and #8 wire.

 

[wyliesdiesels]

Identify the compressor first. Tank size is meaningless for wiring. If it is the 3hp model, you do not need a 35 or 40 amp breaker. I have a true 5hp model that draws 21 amps, and it runs all the time on a 30 amp breaker and #8 wire.

A 30a breaker for a 5 horse motor? Correct me if I'm wrong but I thought OCPDs were suppose to be sized 250% of FLC which is 28a. Which would mean your breaker should be 70a! (NEC 430.52C) Your wire size is correct (125% of FLC) if using Romex!

 

[Gary S]

No way I will use a 70A breaker when a 30A does the job perfectly. I want my motor protected for overcurrent, and running 60-70 amps through the motor if it overloads is almost a guarantee of a burned out motor.

 

[wyliesdiesels]

No way I will use a 70A breaker when a 30A does the job perfectly. I want my motor protected for overcurrent, and running 60-70 amps through the motor if it overloads is almost a guarantee of a burned out motor.

Motor and wire protection is usually accomplished by a thermal overload in the motor or motor controller NOT with an OCPD. This is because of "locked rotor" in-rush current. But yeah, if your breaker doesn't trip, then you're fine.

 

[Aceman]

No way I will use a 70A breaker when a 30A does the job perfectly. I want my motor protected for overcurrent, and running 60-70 amps through the motor if it overloads is almost a guarantee of a burned out motor.

The breaker has no bearing on your motor burning up. The code minimum breaker size for your compressor is 35 amp.

 

[Norcal]

No way I will use a 70A breaker when a 30A does the job perfectly. I want my motor protected for overcurrent, and running 60-70 amps through the motor if it overloads is almost a guarantee of a burned out motor.

A fuse or circuit breaker in a motor circuit is there for short circuit protection, the overload protection is there to protect the motor.

 

[Bigjon88]

My craftsmen 60 gallon ran on a 20am 220 breaker 3.2 hp motor