How many amps are on a double pole 30 amp circuit breaker?

Answer 1

ANSWER

The amperage that can be used from a service distribution panel is governed by the amperage of the main breaker. If the main breaker is 200 amps then up to a maximum of 200 amps can be taken from the panel before the main breaker trips on an over current fault.

ANSWER

Breaker panels come in a variety of sizes. The current capacity of the breaker panel and its main breaker are governed by the current capacity of the service wiring provided by the electrical supply company. 50 years ago, 60 ampere service was common. Now the smallest common household service in North America is 100 amperes. It is becoming more common to install 150 or 200 ampere service, especially in upscale homes

One "planning ahead" approach is to get 100 ampere service, but install a 200 ampere breaker panel with a 100 ampere main breaker. That way, if you ever upgraded to 200 ampere service, you'd already have the correct panel and wiring, and all you'd have to do is take out the smaller main breaker and replace it with a 200 ampere unit

For business installations, main breaker panels can be considerably larger. For example, consider a typical roadside hotel (50-75 rooms) or small apartment building (15-20 apartments) with HVAC (individual electrical heat and air conditioning units ). You can think of it as a gigantic house, everything that's in your house but on a larger scale. A 1600 ampere 3-phase main breaker would probably be used, with a distribution panel providing 200 ampere single phase breakers to feed power to 200 ampere subpanels throughout the building.

Please read discussion page about the statement in bold print above.

Answer 2

There is a number on the end of each breaker handle. This number represents the maximum amperage handling the breaker will allow before tripping. There is a number on the end of each breaker handle. This number represents the maximum amperage handling the breaker will allow before tripping.

Answer 3

The 30 A breaker you seem to be describing is a 240V breaker. There should be two black wires or perhaps a black and red wire connected to the two screws on the breaker. So the breaker would trip if more than 30A was demanded by the load with 240V across the load. What you have connected to the breaker should be sized such that the total current is no more than 80% of the 30 A.

Answer 4

It is depend on what are the load you are going to use. Add all the loads in Kilo watts and devide it by the supply voltage if it is single phase. If it is three phase devide it by root 3 X supply voltageX.8

Answer 5

Breakers will only handle the amperage they were made for. The ones you have in your example are rated at 30 Amps and will trip at 30 Amps.

One can not add 2 breakers together to get a higher amperage rating. It just doesn't work that way.

Answer 6

New, average size 3 bedroom 2 bath homes today will require around 20 breakers. It really depends on if the heat, water heater, cooking, and dryer is gas or electric. If all of them are eclectic it could take 30 breakers or even more. Your electrician can tell you how many breakers will be required for the home you are building.

Answer 7

A double pole 30 amp circuit breaker has a total of 30 amps on each leg, making a total of 60 amps across both legs.

Answer 8

Around 20

Answer 9

7200