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A circuit breaker limits the amps that a circuit can carry. If the amperage draw on a circuit exceeds that limit, the circuit breaker turns off the circuit.
If the current through a wire exceeds the rated amperage, the wire will overheat and eventually cause a fire, or at a minimum, destroy the wire behind inside the wall.
Obviously, people don't want a house fire caused by an electrical overload, so circuit breakers are used to prevent damage and potential loss of life.
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∙ 13y ago
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∙ 11y agoIf the current in circuit exceeds the rated value of the fuse, it blows and opens the circuit so no current flows. If the higher current were allowed to continue it would conceivably ruin the device that was connected; could cause a fire; or could cause a shock hazard.
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∙ 14y agowhen someone breaks in your house the alarm will go off and you will know someone is in your home unless you had to breakin to your own house.
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∙ 14y agoif a lightening bolt hits a wire that is going to you it ex-orbs the extra energy
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Why does an electrical breaker trip when you use a lot of appliances in the house?
since circuit breaker consists of coils they get heated up when high current flows, when this happens the coil get energised and pull the moving contacts to open thus the circuit breaker opens when high current flows.
What size amp circuit breaker would protect a 12kW boiler?
The breaker protects the wiring not the boiler. 12,000 watts at 240 volts will require 50 amps. So, you will need a 60 amp breaker using AWG# 6 wire on a dedicated circuit.
Is there an error if the upstream circuit breaker is 16A TP and the downstream circuit breaker is 16A TPN?
is there an error if the upstream circuit breaker is 16A TP and the downstream circuit breaker is 16A TPN?
What is a non auto circuit breaker?
A non-auto circuit breaker is a circuit breaker with the trip element removed. Basically, it is a modified circuit breaker that is now a disconnect switch (glorified disconnect switch).
What meaning mcb?
MCB, Miniature Circuit Breaker is electric switch which is used to protect against short circuits
What is the function of the fuse or circuit breaker in a circuit?
A circuit breaker/fuse is designed to protect the wiring from getting overloaded.
Can you replace a 20 amp circuit breaker with a 25 amp circuit breaker?
No. The breaker must protect the circuit components such as wiring, outlets and switches that are connected to the breaker. Therefore if you have a 30 amp circuit as dictated by its components you need to protect it with a 30 amp or less breaker.
How are circuit breaker and fuse alike?
They both (try to) protect the rest of the circuit.
A parallel circuit breaker should be connected in a parallel to the circuit it's protecting?
For a circuit breaker to protect anything, it must be wired in series with whatever it is protecting.
What devices do not protect you from electrical fires?
circuit breaker
What is the purpus of a circute breaker?
The purpose of a circuit breaker is to protect electrical circuits from short circuiting.
What materials can be used to protect a circuit?
Fuse, screw in or plug, circuit breaker, fuseable link
Does an electric circuit have a beaker?
Electric circuit need a main circuit breaker that can protect the whole circuit from short circuit even in ground fault. It's safer if you use breaker with built in ground protection.
How does a circuit breaker help to protect against short circuits and circuit overloads?
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How are Branch circuit protected?
Branch circuits are protected by the circuit breaker found in the electrical panel. Each circuit should have its one breaker. The breaker should be rated to protect the insulation of the wire, so you can determine the breaker size based on the circuit conductor size Example #14-2 should be protected by a 15 amp breaker
What devices can help protect homes from overloaded circuits?
Circuit breaker or fuse.fuse
What device is used to protect buildings from electrical fires?
Circuit breaker or a fuse
