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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 else can I help you with?
What is the minnimum size equipment grounding conductor required by the NEC for a branch-circuit protected by a 50-ampere rated circuit breaker?
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
How is the circuit protected?
By a fuse or a circuit breaker.
What is the result when a branch of a parallel circuit has an open circuit?
When a branch of a parallel circuit has an open circuit, it breaks the loop and prevents current from flowing through that particular branch. The other branches of the parallel circuit will continue to operate as normal, as they are unaffected by the open circuit in the specific branch.
How can you identify the branch parallel circuit with the what will have the least amount of current flow?
In a DC circuit, it's the branch with the largest resistance. In an AC circuit, it's the branch with the largest magnitude of impedance.
What determines the current in each branch of parallel of circuit?
The resistance of the component on that branch of the circuit, if the resistance is higher less of a proportion of the total current of the circuit will travel through that branch, however, if the resistance is low a higher proportion of the current will travel through that branch of the circuit. The voltage through each branch stays the same.
What determines the current ine each branch of parallel of circuit?
The resistance of the component on that branch of the circuit, if the resistance is higher less of a proportion of the total current of the circuit will travel through that branch, however, if the resistance is low a higher proportion of the current will travel through that branch of the circuit. The voltage through each branch stays the same.
Is a circuit breaker required on every branch circuit?
yes
What is the same in each branch of a parallel circuit?
In a parallel circuit, the voltage across each branch is the same.
What determines the current in each branch of a parallel circuit?
The resistance of the component on that branch of the circuit, if the resistance is higher less of a proportion of the total current of the circuit will travel through that branch, however, if the resistance is low a higher proportion of the current will travel through that branch of the circuit. The voltage through each branch stays the same.
What is the exception to the minimum branch-circuit wire size that can be installed in a dwelling?
The exception to the minimum branch-circuit wire size that can be installed in a dwelling is for load centers in dwelling units where the branch circuits supply 15-amp or 20-amp receptacle outlets and are protected by a 20-ampere overcurrent device.
What is the maximum amperage capacity of the circuit protected by 30 amp breakers?
The maximum amperage capacity of the circuit protected by 30 amp breakers is 30 amps.
What is the recommended amperage for a circuit protected by a 50amp breaker?
The recommended amperage for a circuit protected by a 50-amp breaker is 80 of the breaker's rating, which is 40 amps.
