answersLogoWhite

0


Best Answer

Some local electrical codes don't allow mini breakers, so check with local codes before you install them. As a general rule the total load of all breakers should not exceed the supply load of the main. As a general rule the total load of all breakers should not exceed the supply load of the main.

This is not a true statement . You will find that if you add up all the breakers, in most cases the total will exceed the main breaker total. On a 42 circuit board at 15 amp breakers the total will come to 630 amps. The way code looks at it is that not all circuits will be on at once and not all at full load. The main breaker only protects the service entrance wires. If the amperage of the main service wires becomes greater than that of the wire rating then the main breaker will trip.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

10y ago

It sounds like the panel-board is a CDP. A three phase central distribution panel can be filled up with three pole breakers. These types of boards are usually use for motor feeders to individual motor loads through out a commercial building.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

The maximum number of breaker slots in a 200 amp combination panel is 42.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

A distribution panel can be filled to the amount of breaker spaces available.

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

Panels without mains may have up to 6 breakers.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the max number of breakers in a breaker box?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Can you add a 20 amp breaker to main breaker if total breaker amp is 320 amp Main breaker max is four 150 amp breaker?

Total amps or calculated load has nothing to do with the number of breakers and their sizes. It is more complicated than adding the sum of the breakers, if you do that you will see that they would exceed 200 amps.It is based on square footage for the general receptacle and lighting loads,3000 watts is allowed for small appliances and this is just the beginning.Some experienced electricians have trouble with the calculations.If you are trying to see if you have enough capacity for an addition or some upgraded equipment,and you have breaker space,the chances are you will be O.K. Overloading the service would cause the main to trip.


Can you use 6-3 NM wire and 50 amp breakers and 50 amp range cord for a 40 amp max load range?

You can if you have the existing materials. If you want to keep your costs down the same installation can be installed with the following materials. For wire all that is needed is 3C #8 wire. For the breaker a two pole 40 amp will work. You will need a 4 11/16" square box to install the range receptacle into.


How can you get a high score on bubble breaker?

My high score is 1936. I'm curious what the max possible score is?


What does a continuous load on a breaker mean?

Is a load(appliance) that runs at max current for 3 hours or more at a time.


What happens when you plug a 30 amp appliance into a 50 amp breaker?

The appliance works perfectly. If you did it the other way around (50amps on a 30amp breaker, you would be tripping the breaker. Think of it as a mercury thermometer. The circuit breaker is the maximum temperature and the load on that breaker is the mercury. If the load is lower than the max, everything works beautifully. If the load becomes greater than the maximum rating, then things starting popping.

Related questions

Will turning off the main breaker turn off all the power to the circuit breaker box?

No. Power to all the circuit breakers will be cut off except for the Main power breaker. The Main power breaker (which supplies power to all other breakers and will say 100, or whatever your max breaker box power is, on it )will have power going to it all the time, unless power is turned off outside the house.


If you have two central air systems outside - a 25 amp heat pump and a 40 amp max electric for the main floor - why do the 80 amp dbl poll breakers on the main box throw when temps reach the 90s?

Check to ensure the connections are tight at the breaker box and the disconnect boxes. It could be that you simply have a loose connection. I have seen this occur from time to time and you may have answered your own question.When the temperature rises the breakers also heat up because of this,especially if the breaker panel is in the sun all day.If the breakers have some age on them try replacing them and checking the amp draw.


What is the max amps for a 4 gauge wire can 4 gauge feed a 100A breaker box?

Yes, # 4 AWG copper and 100 amps is the max.


Can you add a 20 amp breaker to main breaker if total breaker amp is 320 amp Main breaker max is four 150 amp breaker?

Total amps or calculated load has nothing to do with the number of breakers and their sizes. It is more complicated than adding the sum of the breakers, if you do that you will see that they would exceed 200 amps.It is based on square footage for the general receptacle and lighting loads,3000 watts is allowed for small appliances and this is just the beginning.Some experienced electricians have trouble with the calculations.If you are trying to see if you have enough capacity for an addition or some upgraded equipment,and you have breaker space,the chances are you will be O.K. Overloading the service would cause the main to trip.


How do you size circuit breakers?

If you are using 14AWG wire in your circuit, you will fuse with a 15 amp breaker as 14AWG maximum amperage is 15 amps to 100 ft of wire. If the wire run is longer than 100ft, then you would fuse for 10 amps max. If you are using 12AWG then it can carry 20 amps, etc. Longer than 100ft you would fuse for 15amps. note: 14AWG is called 14/2 and 12Awg is called 12/2 commonly.


Why making capacity is more than breaking capacity in circuit breakers and contactors?

Making capacity is the max fault current it can carry during closing of breaker, e.g. You are closing a breaker on fault. The making capacity is always higher because it is expressed in peak value not rms, and also because of the DC offset, voltage and PF while closing


Is there a sims 2 cheat for making a house with more than five floors?

write this into the cheat box in your neighbourhood. set HighestAllowedLevel # the # is the max number of floors you want. write this into the cheat box in your neighbourhood. set HighestAllowedLevel # the # is the max number of floors you want.


What are the release dates for Breaker High - 1997 Max-He-Can Hat Dance 1-39?

Breaker High - 1997 Max-He-Can Hat Dance 1-39 was released on: USA: 17 February 1998


What is switch's Max Connections Limit?

about 5 lights to a circuit breaker in the circuit


Can you use 6-3 NM wire and 50 amp breakers and 50 amp range cord for a 40 amp max load range?

You can if you have the existing materials. If you want to keep your costs down the same installation can be installed with the following materials. For wire all that is needed is 3C #8 wire. For the breaker a two pole 40 amp will work. You will need a 4 11/16" square box to install the range receptacle into.


What is the 5 number summary for a box and whisker plot?

Min- the lowest value Q1- the median number between the actual median and the min Median- the "middle" number in the dataset Q3- the median number between the actual median and the max Max- the highest value


When calculating circuit breaker size for motors how would you determined which number to multiply by - 1.25 percent - 1.75 percent or 2.25 percent - as the size of the HP and voltage increases?

max amps