Multi Family Service Size - Electrician Talk - Professional Electrical Contractors Forum
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Electrical Forum > General Electrical Discussion

Thread Tools Display Modes
Old 03-26-2018, 04:18 PM   #1
Junior Member
Join Date: Aug 2016
Location: Philly
Posts: 16
Rewards Points: 20
Default Multi Family Service Size

Ií am currently bidding a job for a a triplex. Each of the 3 units will have its own 100 Amp panel, and the House panel will be a 50 amp. I am considering bringing in a 400 amp feed, is that over kill or is that the correct service size i should be using for this project?
Sparky1744 is offline   Reply With Quote
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free! - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that is a great community to join. Best of all it's totally free!

Join - Click Here JOIN FOR FREE

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Sponsored Links
Old 03-26-2018, 04:23 PM   #2
Senior Member
Arrow3030's Avatar
Join Date: Mar 2014
Location: California San Francisco bay area
Posts: 581
Rewards Points: 236

No one's going to know the answer. You need to do a load calc. If someone does give answer, they're shooting from the hip. With that said, it's probably more than you need.
Arrow3030 is offline   Reply With Quote
Old 03-26-2018, 06:19 PM   #3

Dennis Alwon's Avatar
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 21,771
Rewards Points: 2,402

If the load on each of the 3 units is under 100 amps and 50 on the house meter then I don't see an issue with 400 amps. You may be able to get by with less, but as stated above, you need to do a calculation
They say I shot a man named Gray and took his wife to Italy
She inherited a million bucks and when she died it came to me
I can't help it if I'm lucky
Dennis Alwon is offline   Reply With Quote
Sponsored Links
Old 03-26-2018, 07:33 PM   #4
Senior Member
jw0445's Avatar
Join Date: Oct 2009
Location: Kirkwood, Pa.
Posts: 1,302
Rewards Points: 1,982

Just what everyone said above. Gas stove, gas hot water, gas dryer, gas heater, are game changers for load calcs. Change all of them to electric and you can't go wrong putting in a 400 service
jw0445 is offline   Reply With Quote

meter, multi-family, service

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Multi Family Dwelling Feeder Size Sparky1744 Services and Service Equipment 0 03-26-2018 04:17 PM
Multi Family Dwelling Unit Sparky1744 General Electrical Discussion 5 03-26-2018 06:28 AM
Multi Family Units Sparky1744 Residential Electrical Forum 0 03-26-2018 12:51 AM
Square D 400A Main : Conversion multi family to single onilozay General Electrical Discussion 2 04-26-2017 07:37 PM
Multi Family Residential Meter Bank Questions TheLivingBubba General Electrical Discussion 7 01-20-2016 09:07 AM

All times are GMT -4. The time now is 02:49 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Our Pro Sites Network | | | | |