Electrician Talk - Professional Electrical Contractors Forum - View Profile: varmit
CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Members List


varmit's Profile Picture

varmit varmit is offline

Senior Member

Visitor Messages

Showing Visitor Messages 1 to 1 of 1
  1. Ryan@1stDay
    08-17-2016 12:22 AM - permalink
    [email protected]
    Hi

    I am currently trying to size my circuit conductors and breaker for a paint booth.
    The electrical in the booth consists of:
    - 20 LED lights @ .45amps each..... 9amps
    - 1 10hp 208volt motor....... NEC FLC 30.8amps
    - 1 7.5hp 208volt motor...... NEC FLC 24.2amps

    Now, what I have found is based on article 430.24 I will size my conductors based 125percent of the largest motor(38.5amps), plus the sum of the s2nd motor(24.2amps), plus the 9amps for th lighting load..

    This would bring me to, 71.7amps(#4THHN)

    Now, would I then take that total(71.7amps) and apply T430.52 to size my Breaker?? In which case, 71.7amps @ 175percent would be a 125amp breaker.?

    I feel like I am missing/overlooking something here..

    Thank you in advance for all your help!

About Me

  • About varmit
    Professional Biography
    I have done electrical work for 48 years, mostly industrial and commercial with some residential in my early career. Mostly these days I do controls, instrumentation and VFD work.
    What is your electrical related field/trade:
    Master Electrician/Instrument Tech
    General Location
    Northern Kentucky
    Special Skills, Interests, and Hobbies
    Ride and race bicycles
    Occupation
    Electrician, controls tech, junk equipment fixer
  • My Company
    Service Area
    Cincinnati/Northern Kentucky

Statistics

Total Posts
Visitor Messages
Total Thanks
General Information
  • Last Activity: Yesterday 10:07 PM
  • Join Date: 04-19-2009
  • Referrals: 0

Mentions

05-28-2017
12:00 PM - MerakVerer mentioned varmit in post Best multimeter?
varmit Thank you I have loo...

Quotes

05-16-2019
05:34 AM - splatz quoted varmit in post Advantage between 10 inch, 9.5 inch and 9 inch linesman pliers
Channellock, the company, m...
12:23 AM - micromind quoted varmit in post Which CB do I need for these VFDs?
If this is not a wye power ...
05-12-2019
07:19 PM - drsparky quoted varmit in post Is anyone running a NV200 for a service truck?
That is odd. The City Expre...
06:39 PM - varmit quoted drsparky in post Is anyone running a NV200 for a service truck?
Get the Chevy City Express in...
04-24-2019
01:00 PM - Bird dog quoted varmit in post Shutting down 480 V main
Yes, these are probably pow...
03-29-2019
06:22 AM - WronGun quoted varmit in post Single phase 480v
Would it not be easier to p...
03-21-2019
05:53 PM - varmit quoted mike883 in post question: how you guys to check the transformer after wiring up?
but that only prevent the gr...
03-17-2019
10:18 PM - emtnut quoted varmit in post Random Rotation Reversal
...se rotation. Sorry Varmit, but I don't see wha...
10:10 PM - varmit quoted splatz in post Random Rotation Reversal
How does the missing leg ca...
03:48 AM - HertzHound quoted varmit in post Random Rotation Reversal
If one of the transformer d...
03-16-2019
11:04 PM - gnuuser quoted varmit in post Random Rotation Reversal
If one of the transformer d...
03-02-2019
09:13 PM - varmit quoted brian john in post Transformers
Fixed it for you. Old habits...
09:35 AM - brian john quoted varmit in post Transformers
The transformer secondary n...
03-01-2019
09:49 PM - varmit quoted JRaef in post Electronic Soft-Start
It's what's called a Grid ...
02-27-2019
08:35 PM - micromind quoted varmit in post Electronic Soft-Start
Is this really engineered, ...
02-26-2019
09:48 PM - varmit quoted JRaef in post Electronic Soft-Start
A soft starter is only alt...
02-23-2019
03:17 PM - MechanicalDVR quoted varmit in post
10:00 AM - varmit quoted MechanicalDVR in post
09:52 AM - MechanicalDVR quoted varmit in post
02-14-2019
07:53 PM - varmit quoted tmessner in post Old Motor Starter Wiring Help
It probably has a mechanical ...

All times are GMT -4. The time now is 05:09 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | HVACSite.com | PaintTalk.com | PlumbingZone.com | RoofingTalk.com