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themagicone

join:2003-08-13
Osseo, MN

1 edit
reply to macsierra8

Re: 400 amp single phase service wire size residential

said by macsierra8:

Both Seimens and Square D 400 amp meter panels sold here are split 200 amp services with a supplied breaker for each as Mr. Matt said.

I ran 200 amp to my shop with 4/0 copper because of the 175' length. The other 200 was split 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 house I was working on I used 4/0-4/0-2/0 AL Feeder and then a 4/0-4/0-4/0 to main panel from meter.

42 NEC 310-15 CONDUCTOR SIZES FOR 120/240
VOLT 3-WIRE, SINGLE-PHASE,
DWELLING SERVICES AND FEEDERS
Copper Aluminum Service Rating
4 AWG 2 AWG 100 amps
1 AWG 2/0 150 amps
2/0 4/0 200 amps
400 kcmil 600 kcmil 400 amps


macsierra8
Baby Newfoundland
Premium
join:2003-11-30
Minden, NV

1 edit

said by themagicone:

said by macsierra8:

Both Seimens and Square D 400 amp meter panels sold here are split 200 amp services with a supplied breaker for each as Mr. Matt said.

I ran 200 amp to my shop with 4/0 copper because of the 175' length. The other 200 was split 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 house I was working on I used 4/0-4/0-2/0 AL Feeder and then a 4/0-4/0-4/0 to main panel from meter.

42 NEC 310-15 CONDUCTOR SIZES FOR 120/240
VOLT 3-WIRE, SINGLE-PHASE,
DWELLING SERVICES AND FEEDERS
Copper Aluminum Service Rating
4 AWG 2 AWG 100 amps
1 AWG 2/0 150 amps
2/0 4/0 200 amps
400 kcmil 600 kcmil 400 amps
Yep, the 4/0 thhn copper is gold now days.. I surf on E-Bay a lot and have found some great deals on wire and stuff. I've bought trucks, forklifts and scissor lifts, you name it.

The deal on the copper was that a company finishing a big runway job had a 1000' roll left over and he put it on E-Bay for 1000 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. But now with scrap prices being so high those copper thhn deals are hard to find.

I need the full 200 amps for my shop as the plasma cutter needs 100 amps, and the industrial air compressor needs 50 more and the roto phase 7.5 hp needs 30-40 or so, lighting and saws etc etc..
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