Wire Size For 125 Amp Service Panel. Since this is a single phase dwelling service you can use #2 awg copper or 1/0 aluminum for a. A welder would be the heaviest thing used.
You need to use the 75° column since no one makes a 90° breaker just yet. The rule of thumb for 100 amp is that you go with a wire size gauge 1. The size of the wire for the electrical service will depend on the size of your main electrical service panel.
Table of Contents
The Sub Panel Will Be Located One Floor Below The 200 Amp Main Panel And Need About 14 Feet Of Wire For A Neat Installation.
Branch circuit wire sizes for long runs: Detailed tables of copper or aluminum service entry wire sec cable sizes for long runs at higher ampacities entering the building's main electrical panel, and where we give sizes. This means that, depending on the size of the wire, you’re going to a have a different maximum safe carrying capacity.
What Wire Size Do You Need For A 125 Amp Panel With A 100 Amp Main Breaker?
To me, there’s no better reference for it than this table. The number of devices connected to the circuit usually determines how much current will flow. For 150 amp, the right wire size is.
What About The Temperature Rating?
The short answer, if using copper, is 0 awg, commonly referred to as 1/0 or one ought. Amperage is a measurement of the volume of electricity flowing through wires, and this measurement can vary between 30 amps in very old homes that have not been updated to as much as 400 amps in a very large home with extensive electric heating systems. Warning have the panel inspected by a licensed electrician for code violations.
Since This Is A Single Phase Dwelling Service You Can Use #2 Awg Copper Or 1/0 Aluminum For A 125 Amp Service Or Main Feeder.
If the 125 amp load is a sub distribution panel that is not going to be fully loaded to 125 amps then using the exact connected load, which might be smaller than 125 amps will effect the wire sizing. Also if i change my mind about the 125 amp and make it a 200 amp service what wire size would that take? 125 amp requires a wire size 2/0.
I Am Running 220V 100 Ft To A 125 Amp Sub Panel.
Should i use #3 or # 2 copper? Service entry cable wire sizes for long runs: I'm looking for suggestions on wire size, this is what was given to me by a friend of mine.