On Saturday, June 25, 2016 at 6:18:45 PM UTC-4, Tony944 wrote:
"trader_4" wrote in message
...

On Saturday, June 25, 2016 at 1:50:11 PM UTC-4, Tony944 wrote:
"trader_4" wrote in message
...

On Friday, June 24, 2016 at 7:41:07 PM UTC-4, wrote:
On Thursday, October 22, 2009 at 11:02:51 AM UTC-5, JayB wrote:
This came up elsewhere and I am just curious about what the answer is.

If someone has a main service panel with a 200-amp main breaker, how
many
amps of service can that panel actually service?

I am probably not wording this correctly, but I thought that I
remember
something about a 200-amp main breaker actually being okay for 400
amps
of
service since there are two separate circuits coming in (a 240-volt
service
split into two 120-volt circuits in the panel box).

DON'T DO IT!

Don't do what? A 200 amp panel will support 240V at 200 amps or 400 amps
at 120V.


200 amps. is 200 if is 120 or 240, You can not change Amperage
Voltage yes Amperage "NO" for 240 Volt max. is 200 amps./leg
Each "leg" of 120 Volt, will give max. 200 amps.
assuming that neutral is rated for 400 amps.

Sigh. Do we have to go through this all over again? A service
rated at 240V, 200A will support a load of 240V, 200A or a balanced
load of 120V, 400A. Yes the current in the service conductors
never exceeds 200A, but if you have 200A flowing through one leg
through 200A of 120V loads, through another 200A of 120V loads,
and then back out the other leg, it's handling 400A of 120V loads.

Dear Sir you look at it your way and I will look at it my way. have nice day

Ah schucks, don't just go away on us like that. I was looking forward
to you explaining this:

Each "leg" of 120 Volt, will give max. 200 amps.
assuming that neutral is rated for 400 amps.


You see many 200 amp services where the two hots are sized for 200 amps
and the neutral is sized for 400 amps? Where do you buy that cable?
There is never more than 200 amps
in any conductor. Nor does there have to be to support 400 amps of 120V
load on a 240V, 200A service.