What Size Conductors Do I Use On A 400 Amp Service

Toddus @verizon.net	Betimes 2010-Oct-28 4:l pm 400 amp single phase service wire size residential I am building a new home 4,900 sq ft I was told I demand a 400 amp service. I would like to find out what size feeder wire is needed from panel to meter, from meter to to riser. This is a unmarried family unit dwelling. 60 amp sub shop l amp spa 30 amp water heater HVAC Range whirlpool bath v bedrooms, basement, 3 bath Kitchen Is 400 amps necessary ? if so What would the wire feeder size need to be? I looked in my NEC it's been years since I've used one and found the AWG to be 600 for 420 amps did not seem correct,am I looking in the correct place?, any help would be appreciated.
	· deportment · 2010-Oct-28 iv:50 pm ·
Mr Matt join:2008-01-29 Eustis, FL	Mr Matt Member 2010-Oct-28 5:08 pm Here in Florida depending on the electrician and electric company the electrician will probably install a split 200 Amp service with two 200 Amp Panels. Wire Size: »wiki.answers.com/Q/What_ ··· mp_panel
	· actions · 2010-Oct-28 v:08 pm ·
John Galt6 Forward, March Premium Member join:2004-09-xxx Happy Military camp	John Galt6 to Toddus Premium Member 2010-Oct-28 5:fifteen pm to Toddus Ask the person who told yous that you lot need 400 amps. They must take a reason for maxim that. Also, consult with your local utility. They can advise some options.
	· actions · 2010-October-28 five:xv pm ·
Jahntassa What, I tin have feathers Premium Fellow member join:2006-04-14 Conway, SC 1 edit	Jahntassa to Toddus Premium Fellow member 2010-Oct-28 6:19 pm to Toddus For that many square anxiety, I would remember 400A would be on-par with heating / cooling and other needs, especially if everything you lot stated in that location is electrical. I don't remember what size wiring they used on my 400A install, but information technology's definitely pretty thick.
	· actions · 2010-Oct-28 6:nineteen pm ·
SparkChaser Premium Member join:2000-06-06 Downingtown, PA	SparkChaser to Toddus Premium Member 2010-October-28 6:27 pm to Toddus I assume you hired an electrician to program the dwelling house for you. Don't you trust his/her opinion?
	· deportment · 2010-Oct-28 6:27 pm ·
toddus join:2010-x-28 Concrete, WA	toddus Member 2010-Oct-28 6:39 pm No electrician hired to requite load calcs, all done over telephone past sq ft,
	· deportment · 2010-October-28 6:39 pm ·
wilbilt Pronto Resurrected Premium Member join:2004-01-11 Oroville, CA	wilbilt to Toddus Premium Fellow member 2010-Oct-28 6:58 pm to Toddus What do you plan for the shop? A 60A sub seems small given mod trends (welders, compressors, lifts, plasma cutters, etc...)
	· actions · 2010-October-28 6:58 pm ·
nunya LXI 483 MVM join:2000-12-23 O Fallon, MO	nunya to Toddus MVM 2010-Oct-28 7:26 pm to Toddus Your electrician or builder / engineer ~~should~~ must do a load calculation. Due to unmarried phase transformer sizes, most utilities really offer 320A service, not 400A. This isn't something you lot accept a chance on or go communication from an internet site. Hire someone who knows what they are doing.
	· actions · 2010-Oct-28 7:26 pm ·
65349376 (banned) bring together:2010-10-26	65349376 (banned) to Toddus Member 2010-Oct-28 8:46 pm to Toddus No electrician to do load calculations ?? I guess you lot didn't have a plumper either, how about HVAC, construction ?
	· actions · 2010-Oct-28 8:46 pm ·
macsierra8 Babe Newfoundland Premium Member join:2003-xi-30 Minden, NV	macsierra8 to Toddus Premium Member 2010-Oct-28 viii:46 pm to Toddus Both Seimens and Foursquare D 400 amp meter panels sold here are split 200 amp services with a supplied billow for each as Mr. Matt said. I ran 200 amp to my shop with four/0 copper considering of the 175' length. The other 200 was carve up between two sub panels in the house and the garage.
	· deportment · 2010-October-28 8:46 pm ·
Mr Matt join:2008-01-29 Eustis, FL	Mr Matt to Toddus Member 2010-Oct-28 9:28 pm to Toddus I failed to mention that some time ago I had a chat with the manager of an electric subcontracting company. I asked him why I had non seen 400 Amp service panels in residential applications. His answer was that the conduit size required to suit conductors for a 400 Amp service were and then big that it would not fit between normal 2X4 Studs and the cost of one 400 Amp distribution panel was much higher than two 200 Amp Panels. At that subdivision, at each residence, the electric contractor installed one pelting tight combination 400 Amp Panel and Meter Can outside with 2 200 Amp breakers each feeding two 200 Amp distribution panels via divide conduits.
	· actions · 2010-Oct-28 9:28 pm ·
macsierra8 Infant Newfoundland Premium Fellow member join:2003-xi-30 Minden, NV	macsierra8 to Toddus Premium Member 2010-Oct-28 x:14 pm to Toddus Couple things about the 400 amp panel in residential applications planners aren't used to. I had to modify the plans after approval from a 6 inch wall to a 10 inch wall to accommodate the 400 amp panel for the short distance I needed to mount the panel. Both the architect and county plan check missed that we needed a " firewall around and behind the console because of the living area upstairs. As the console by itself is vi inch broad every bit the conduit template width shows. That plus some insulation required the 10 inch wall, couple of picts beneath.
	· actions · 2010-October-28 ten:14 pm ·
whizkid3 MVM join:2002-02-21 Queens, NY	whizkid3 to Toddus MVM 2010-Oct-29 7:16 am to Toddus Over the phone? Taking someone'southward word for it based on a cursory telephone conversation, is not very wise. Every bit said past nunya, you MUST take an engineer, electrician (or qualified builder) perform load calculations. Since you will pay for this, make sure you lot tell them you lot want a copy of the calculations. And then yous can mail it hither for united states of america to cheque if you similar. Considering that y'all take the coin to build a brand new 4900 square foot home, then I am sure that would not be a trouble. Likewise, I am sure yous could get a copy of the plans before you spend a meg $ plus. These should include the full electrical plans with load calculations. I know if I had the coin to lay out to build a MacMansion (or really, a mansion in this example), I probably would non worry so much whether I needed a 400A service or non, and exit that to the professionals I hired. Based on the size of the dwelling, you lot will at least need a 200A service, that is for sure. And with 4900 square anxiety and some of the apliances yous listed, they are likely correct that you lot practice need a 400A service. And then, what is the problem? Are you planning on running the electrical yourself? If you lot don't know how to practise the feeder calculations (non to mention the required load calculations) I suggest yous step back and hire a professional. Since you are interested, accept a look at tabular array 310.15.(B)(half-dozen), which shows that the minimum is 400 kcmil copper wire for the service wiring.
	· deportment · 2010-Oct-29 7:sixteen am ·
themagicone join:2003-08-13 Osseo, MN 1 edit	themagicone to macsierra8 Member 2010-October-29 1:05 pm to macsierra8 said by macsierra8: Both Seimens and Foursquare D 400 amp meter panels sold here are split 200 amp services with a supplied breaker for each every bit Mr. Matt said. I ran 200 amp to my shop with 4/0 copper because of the 175' length. The other 200 was split up between two sub panels in the house and the garage. Must of been before copper was almost expensive as gold. For the 200amp service at the business firm I was working on I used 4/0-4/0-2/0 AL Feeder and so a 4/0-4/0-4/0 to main panel from meter. 42 NEC 310-15 Usher SIZES FOR 120/240 VOLT three-WIRE, Unmarried-Stage, DWELLING SERVICES AND FEEDERS Copper Aluminum Service Rating 4 AWG 2 AWG 100 amps one AWG 2/0 150 amps 2/0 4/0 200 amps 400 kcmil 600 kcmil 400 amps
	· actions · 2010-Oct-29 1:05 pm ·
Speedy Petey join:2008-01-19	Speedy Petey to whizkid3 Fellow member 2010-Oct-29 4:49 pm to whizkid3 said by whizkid3: Over the telephone? Taking someone'southward word for it based on a brief phone conversation, is not very wise. As said by nunya, you MUST have an engineer, electrician (or qualified builder) perform load calculations. Since you volition pay for this, make sure you lot tell them you want a re-create of the calculations. Then you can post it here for us to check if yous similar. Considering that y'all have the money to build a brand new 4900 square foot home, and then I am sure that would non be a problem. As well, I am sure y'all could get a copy of the plans before yous spend a million $ plus. These should include the full electrical plans with load calculations. I know if I had the coin to lay out to build a MacMansion (or really, a mansion in this example), I probably would not worry so much whether I needed a 400A service or non, and leave that to the professionals I hired. Based on the size of the home, you will at to the lowest degree demand a 200A service, that is for sure. And with 4900 square feet and some of the apliances yous listed, they are likely correct that you do demand a 400A service. And so, what is the trouble? Are you planning on running the electrical yourself? If you lot don't know how to practice the feeder calculations (not to mention the required load calculations) I suggest you step back and hire a professional. Since you are interested, have a expect at tabular array 310.15.(B)(6), which shows that the minimum is 400 kcmil copper wire for the service wiring. I could NOT accept said this ameliorate myself.
	· actions · 2010-Oct-29 4:49 pm ·
nunya LXI 483 MVM bring together:2000-12-23 O Fallon, MO	nunya to macsierra8 MVM 2010-October-29 4:58 pm to macsierra8 I'm curious virtually the (I assume Sch 80) conduits coming upwards in the midst of the foundation. I've never seen this before. But inside or outside. Was information technology done for security or some other reason? What does the finished product look similar? What happens if you lot need to supercede your service equipment?
	· actions · 2010-October-29 4:58 pm ·
macsierra8 Baby Newfoundland Premium Member join:2003-xi-thirty Minden, NV 1 edit	macsierra8 to themagicone Premium Member 2010-Oct-29 5:12 pm to themagicone said past themagicone: said by macsierra8: Both Seimens and Square D 400 amp meter panels sold here are divide 200 amp services with a supplied breaker for each equally Mr. Matt said. I ran 200 amp to my store with 4/0 copper considering of the 175' length. The other 200 was separate between two sub panels in the firm and the garage. Must of been before copper was most expensive as gold. For the 200amp service at the house I was working on I used 4/0-four/0-two/0 AL Feeder and so a 4/0-four/0-iv/0 to main panel from meter. 42 NEC 310-fifteen CONDUCTOR SIZES FOR 120/240 VOLT iii-WIRE, SINGLE-PHASE, DWELLING SERVICES AND FEEDERS Copper Aluminum Service Rating four AWG ii AWG 100 amps ane AWG ii/0 150 amps 2/0 4/0 200 amps 400 kcmil 600 kcmil 400 amps Yep, the four/0 thhn copper is aureate now days.. I surf on E-Bay a lot and have institute some great deals on wire and stuff. I've bought trucks, forklifts and scissor lifts, you proper noun information technology. The deal on the copper was that a company finishing a large track job had a thousand' roll left over and he put it on Eastward-Bay for chiliad bucks plus freight at buy it now. I almost broke my finger hitting the keyboard.. I'v since bought some 3/0 copper thhn from the same guy and I watch his auctions close. Just at present with flake prices being so high those copper thhn deals are hard to find. I need the full 200 amps for my shop every bit the plasma cutter needs 100 amps, and the industrial air compressor needs 50 more and the roto phase vii.5 hp needs thirty-40 or so, lighting and saws etc etc..
	· deportment · 2010-Oct-29 five:12 pm ·
macsierra8	macsierra8 to nunya Premium Fellow member 2010-Oct-29 5:36 pm to nunya said past nunya: I'm curious well-nigh the (I assume Sch 80) conduits coming upwards in the midst of the foundation. I've never seen this before. But inside or exterior. Was information technology washed for security or some other reason? What does the finished production look like? What happens if yous demand to replace your service equipment? All are sch 80, yes. We practise our custom homes like that and especially in the higher snow country effectually Lake Tahoe. Although in that location is no lawmaking that sez you have to, long every bit yous use sch 80 to a higher place ground. That petty room under the stairs and deck is more for sheer load as the construction is 35 feet high and the engineer wanted it so I put it to utilize and gained some floor space. Nosotros have a wind rating here much like Florida with 120 mph wind load + snow load.
	· deportment · 2010-Oct-29 5:36 pm ·
garys_2k Premium Member join:2004-05-07 Farmington, MI	garys_2k to Toddus Premium Member 2010-Oct-29 eight:21 pm to Toddus OMG! Don't even think of making this a DIY job, exit i this big to the pros, delight. No mode I'd want to take on a total business firm's feeder calculations and I'm a P.E. -- I'd leave that to someone who specializes in those things.
	· actions · 2010-Oct-29 8:21 pm ·
whizkid3 MVM join:2002-02-21 Queens, NY ane edit	whizkid3 to nunya MVM 2010-Oct-30 9:02 am to nunya said by nunya: I'm curious about the (I assume Sch 80) conduits coming up in the midst of the foundation. I've never seen this before. Just inside or outside. Was it washed for security or some other reason? What does the finished product look like? What happens if you need to replace your service equipment? Information technology is interesting. Nosotros run many conduits through slabs, only non foundations or wall footings. Nosotros utilize concrete encased PVC below the slab, transitioning to rigid galvanized steel for elbows and where it comes up through the slab. I presume structural issues have been checked?
	· actions · 2010-Oct-30 ix:02 am ·