AWG copper or copper-clad steel wire will be required for a 100 ampere circuit. If you are going to use a transformer, you will need to make sure that the transformer is rated for the current you want to run through it. For example, if you plan on running a 50 amp circuit through a 10 amp transformer you would need at least a 20 amp rating.
You will also need a way to connect the power to the transformers. If you have a 12 volt power supply, then you can connect it to one of the terminals on the circuit board and use the other terminal as a ground. This will allow you to plug in a battery or other power source without having to worry about the ground connection.
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What size of wire do I need for a 100 amp service?
Installation of 100 amp electric service or subpanel needs a #4 AWG copper wire or #2 AWG aluminum or copper-clad wire inside a minimum 1.25 inch, schedule 40 or 40 gauge wire. If you do not have access to an electrician, please contact your local electric utility.
What size wire do you need for a 100 amp panel?
You’ll need a #4 awg copper wire or #2 awg aluminum or copper-clad wire for 100 amp service. Regardless of the type of wire you use, make sure to limit your voltage drop to 3%.
Can a 60 amp breaker feed a 100 amp sub panel?
The sub panel needs to be rated at least 60 Amps. If you are using a 120 Amp circuit, you will need to use a breaker that is rated at 120 amps or higher. If you have a 240 amp breaker, it will not be able to handle the current draw of the 120 amp circuit.
How many amps is #4 wire good for?
This kind of wire can handle a lot of power. For average use, the 4 gauge wire can handle up to 85 Amp-hours of current. This is a good wire to use if you want to run a high-current load such as a motor or a generator.
If you are using this wire for anything else, you will need to make sure that it is rated for the current you expect to draw. For example, if your load is 100 amps, then you would need a 4-gauge wire with a rating of at least 50 amps to handle that load.
