On Sunday, January 8, 2017 at 6:28:24 PM UTC-5, Meanie wrote:
On 1/8/2017 6:04 PM, 01001100110 wrote:
If a refrigerator, microwave, large toaster oven, deep fryer, blender,
are on the same breaker, would that be too much?
What should be the maximum number of wall plugs on one breaker?
Should the overhead light be on a different breaker?

There's a break in a wire that's knocked out all power in the kitchen.

First, what amp is the breaker?

Second, let's assume it's a 20 amp circuit. An average toaster can run
at 5 amps and microwave can run at 15 amp. A breaker will trip at 80%,
therefore, if you run them at the same time, you'll trip a 20 amp
breaker. That's just two appliances, just think what will happen if they
were all on that circuit and worse if it's a 15 amp breaker.

An 80% rated breaker may trip if it's subjected to greater than 80%
current, but it will take a long time. It depends on the temp environment
the breaker is in, how much above 80% the current is, and how long
it continues at that level. If it's a typical kitchen and the toaster
pushes it to 90% for 5 mins while making toast, it's not likely to trip
unless the breaker is already in a hot environment.





Technically, you can put them on the same circuit, you just can't run
them all at the same time if they will exceed the breaker limit. If you
have a refrigerator on it, that's already running and contributes to amp
usage. Therefore, whatever else you add to that circuit combined with
the fridge needs to be less amps than the breaker limit.

It is recommended to put large appliances on it's own circuit, such as
stove/range, refrigerator, washer, dryer and even a microwave.

Not only recommended, it's code in most cases. An exception would be
the refrigerator, which isn't a large load at all and can be on a
shared circuit, though it may not be a good idea for obvious reasons.
Most new ones are under 100W continuous.