The circuit would be protected up to 8 amps before the breaker would trip. Any more that 8 amps and the circuit would open and shut the circuit off.
You would need a 20 amp switch when the load controlled by the switch can draw as much as 20 amps. If you have a 20 Amp breaker supplying the circuit then you need to size all switches and outlets on that circuit to 20 amps.
You would move the handle of the breaker from the on position to the off position.
they do it everyday it would cost to much otherwise You can put up to 12 outlets on a circuit. On a circuit count you have to include receptacles, switch boxes and fixture boxes.
No. A circuit breaker is a switch, but a switch is not necessarily a circuit breaker. A "circuit breaker" is a device that will open the circuit when more current than it is designed for flows through the circuit. This is an automatic function, and does not require manual manipulation (such as a person physically moving an on/off switch). Resetting is often a manual function. <<>> If taken in the context of a switch opening a circuit or making a break in the circuit then the question, Is a switch a circuit breaker, then the answer would be, yes, as the switch does break the circuit.
That would be a circuit breaker.
If your breaker is sparking it could be loose on the bottom center where it connects to the busbar. The wire going out to the circuit could be loose under the screw terminal. Your breaker should not spark under normal usage. If it continues to spark, you should replace it. When turning off a breaker you are interrupting the flow of current in the circuit, which would create a spark, because the current wants to continue flowing. However, the spark is contained inside the breaker where you cannot see it.
It should be connected in series with a circuit. Since a circuit breaker acts as an "over current" switch it will be connected just an on/off would so as to "open" the circuit during an over current condition. This will remove power from the circuit.
That would be a breaker, as in circuit breaker. Just like the ones on your house.
Answer for USA, Canada and countries running a 60 Hertz supply service.Yes a circuit breaker can be used as a switch. In big warehouse complexes it is done all the time. The breaker that is used is designed for this job to take the daily on off operations. Answer for countries in Europe and other world areas running a 50 Hz supply service.Whilst operating the circuit breaker would certainly work as a switch this would not comply with safety codes in many areas. The main concerns would be:The breaker may not be in a suitable place near the appliance.The breaker might not disconnect both (or all) conductors so would not function as an isolator.The breaker may not be designed to be used frequently.
Only the manufacturer would be qualified to repair a circuit breaker. Any breaker in your home would be cheaper to replace than repair.
A switch is installed in a circuit to stop the current flow. Without the switch there is no way to disconnect the operation of the circuit's load. In modern households the switch is a convenient way to control room lighting from a convenient location. Without switches the circuit power would have to be controlled from the service distribution panel's breakers. In this scenario the breaker would be in the same class as a switch.
The need to de energize the circuit the breaker is feeding is a cause to have a circuit breaker switched off. If you are referring to a breaker tripping off, the cause would be from an overload condition being applied to the circuit, the breaker sensing it and shutting the circuit off.
There are two conditions that would cause a breaker to trip off. One is an overload of the circuit and the other is a short circuit on the circuit. The heating element within the breaker is what monitors for circuit overloads.
A bad circuit breaker. Replace it.
circuit breaker do get fail if and only if the relay does not respond to the fault occurring in the system !!