A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. Even though the panel is rated at a higher amperage it is the main breaker that governs the wire size.
Yes you do. The detached garage will either be fed with a single circuit or a sub panel. The wire feeding the garage will need to be protected and that is the purpose of the breaker (disconnect). The breaker size will be determined by the size of the wire that is used on this circuit.
You can reduce the breaker size because that limits the current that can reach the main panel. There is no safety issue other than the significant danger in an unskilled person changing out a main breaker.
A 100-A sub-panel would be fed from a 100-A breaker.
You can. Using these size breakers in a 60 amp sub panel might be pushing the limit for breaking the sub panels feeder breaker. The breaker feeding the sub panel will have to be no bigger than 60 amps because of the main bus bar capacity of the sub panel. It would be better to install a 100 amp sub panel and then there would be a bit of a buffer and you will have the ability to add additional small load circuits.
Look on the handle end of the main breaker. There should be a number there. That is the amperage of the main breaker. That is the size of your house service.
The recommended size for a main breaker in a residential electrical panel with a 125 amp main breaker is typically 150 amps.
50 amps
50 amps
Yes you do. The detached garage will either be fed with a single circuit or a sub panel. The wire feeding the garage will need to be protected and that is the purpose of the breaker (disconnect). The breaker size will be determined by the size of the wire that is used on this circuit.
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
To determine the amps of a breaker box, look at the main breaker or label inside the panel. The number on the main breaker indicates the maximum amperage that the breaker box can handle. Make sure not to exceed this amperage to prevent electrical hazards.
To safely add a breaker to your electrical panel, first turn off the main power switch. Then, carefully remove the panel cover and identify a suitable location for the new breaker. Make sure to use the correct size and type of breaker for your system. Connect the new breaker to the panel following the manufacturer's instructions, ensuring all connections are secure. Finally, replace the panel cover and turn the main power switch back on to test the new breaker.
The recommended range breaker size for a circuit breaker in a residential electrical panel is typically between 15 to 20 amps.
To change a circuit breaker without a main breaker present, you must first turn off the power supply to the circuit at the main electrical panel. Then, remove the cover of the panel and locate the circuit breaker that needs to be changed. Carefully disconnect the wires connected to the old breaker and replace it with a new one of the same size and type. Reconnect the wires and securely fasten the new breaker in place. Finally, replace the panel cover and restore power to the circuit.
You can determine the size of your main breaker box by looking at the number of circuits it can handle. A typical residential main breaker box is usually 100 amps, 150 amps, or 200 amps. You can also check the label on your breaker box or consult with an electrician for assistance.
In North America the smallest size breaker found in a home distribution panel is rated at 15 amps
Typically yes because that is what makes sense. However, the subpanel could have the same size breaker as long as the panel were rated for that amperage and the wire sizes were appropriate.