How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Inactive Your Own Question

Inactive
Inactive, Electrician
Category: Home Improvement
Satisfied Customers: 4772
Experience:  ----------JA Verified Electrical Expert!!----------
5968364
Type Your Home Improvement Question Here...
Inactive is online now
A new question is answered every 9 seconds

show wiring schematic for three phase air compressor

Customer Question

No Comment Added
Submitted: 6 years ago.
Category: Home Improvement
Expert:  Glenn replied 6 years ago.

HiCustomer Thank you for asking your question on Just Answer. The other Experts and I are working on your answer. By the way, it would help us to know:

What do you have to work with?

Is there a contactor ?

A pressure switch ?

-Could you explain your situation a little more?

Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.

Customer: replied 6 years ago.
Excel air comp.mfg 1993,200PSI,45CFM,220 3phase,10hp Baldor. Contactor:GECR7CF-11-;adjustable overload:GECR7G1TU,25-32A;yes on pressure switch(connects to GECR7XA11B). We are welding and machine shop. Normal uses include coolant pumps,die grinders,impact wrench,etc. Thank you for your time and patience, Mike@MTW.
Expert:  Glenn replied 6 years ago.

Hello

Is it a packaged unit or are you trying to put it togeather ?

Customer: replied 6 years ago.
I am trying to assemble the components. The motor is out of the box, the contactor is used but not mounted, as is the pressure limit switch. There are no schematics nor wires connected. I have enough background knowledge of controls to know the electrician I hired was not as he claimed,I was too busy at the time. Now is crunch time! At this point I am installing/mounting components. My main query is how to wire correctly. Thanx, Mike@MTW
Expert:  Glenn replied 6 years ago.

Hello

What voltage is the coil on the contactor ?

Customer: replied 6 years ago.
HP3PH/V as follows: 7.5/200;10/230;20/460;25/575                      This is as listed on contactor. We are using a 10HP/230V motor. Thanx Mike.
Expert:  Inactive replied 6 years ago.
.
Expert:  Inactive replied 6 years ago.
Here is a diagram using devices that should match your components closely. Now they may not look exactly the same, but the connections will be the same in all devices. If you have any questions at all in relation to this schematic, please dont hesitate to ask. Have a great night.
graphic

***I am a Verified state "Licensed" electrical contractor, not an internet researcher - I will work hard to give you the exact answers you seek and work you through any problem you may have***

Please press the “Accept” button if my answer has helped. This is the only way I get paid for providing my services.

100% customer satisfaction is my goal!!!!!

Inactive, Electrician
Category: Home Improvement
Satisfied Customers: 4772
Experience: ----------JA Verified Electrical Expert!!----------
Inactive and other Home Improvement Specialists are ready to help you
Expert:  Glenn replied 6 years ago.

Hello

If the coil not the contacts is 220 volt thad diagram will work fine

But if the coil is rated 110 volt You will either need a transformer or a netural wire also

The only other thing it lacks is an on off switch

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Thank you for the expeditious answer. It's good to know you're out there and awake in the wee hours when I finally have time to ask questions about my Jenn Air. Jean Riverhead, NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/TH/TheHomeSmithy/2011-8-13_11146_homesmithy.500x500.64x64.jpg The Home Smithy's Avatar

    The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
  • http://ww2.justanswer.com/uploads/BS/bshull17/2011-2-11_04125_japic.64x64.JPG Brian's Avatar

    Brian

    Architect

    Satisfied Customers:

    1967
    Licensed Architect- 16 years, L.E.E.D. AP
  • http://ww2.justanswer.com/uploads/ST/Steve555/2013-6-14_144343_Depositphotos4247517S.64x64.jpg Steve G.'s Avatar

    Steve G.

    Handyman

    Satisfied Customers:

    135
    VP of electronic repair company and home theater advisor.
  • http://ww2.justanswer.com/uploads/ER/Erdaram/2011-6-21_14724_ANIEric4Pics.64x64.gif Eric M. Bright's Avatar

    Eric M. Bright

    We Don't Comprehend the Word Can't!

    Satisfied Customers:

    1734
    I've been been doing things for my clients that others have said cant be done for over a 1/4 Century
  • http://ww2.justanswer.com/uploads/rich03dungo/2010-3-17_101556_tshirt2.jpg Rich's Avatar

    Rich

    Home Improvement Enthusiast

    Satisfied Customers:

    674
    Over 35 years construction and home maintenance experience
  • http://ww2.justanswer.com/uploads/AL/alumalite/2012-5-10_234018_shutterstock506249951forJA500.64x64.jpg Phil's Avatar

    Phil

    Mechanical Engineer

    Satisfied Customers:

    409
    Retired contractor, 51 years experience
  • http://ww2.justanswer.com/uploads/JE/jerrymassie/2011-1-15_45937_1111055.64x64.JPG Jerry's Avatar

    Jerry

    hearth products

    Satisfied Customers:

    317
    owned and operated stove retail and service 12 yrs
 
 
 
Chat Now With A Home Improvement Expert
Inactive
Inactive
743 Satisfied Customers
----------JA Verified Electrical Expert!!----------