What Size Wire For 125 Amp Sub Panel. Nec code for wire size: This is the most common size that is used for home circuits.
Wiring of 125 amp sub panel Neil Ghuman
At 90 amps of load your voltage drop would still be under the 3% recommended threshold. You need to use the 75° column since no ane makes a 90° breaker just yet. I have a 200amp service that i put up and im putting a. 125 amp sub panel 2 awg copper conductors are sufficient, exactly as bob has mentioned. Wire size for 100 amp sub. For example, you may use a 10 awg or american wire gauge for a 30 amp appliance, and a size 8 awg. Wire ampacity = 100% × 100a / 80% = 125 amps. Web if your local electrical inspectors permit the use of nec table 310.15(b)(6) for residential sub panel feeders, then #2 copper is acceptable for 125a. Web if you consult the kcmil list above, you can see that the 350 kcmil wire is perfect for 200 amp service 100 feet away. That’s because it has a 310a ampacity.
Web based on the estimated value, the next available and suitable size main switch breaker for the subpanel is 60a. The right size of feeder wire for the 60a subpanel is 6 gauge. In order to regulate a standard. If the sub panel would be 0 feet away (very close) we would need a minimum 125a wire. Wire size for 100 amp sub. You need to use the 75° column since no ane makes a 90° breaker just yet. When choosing the wire size for a 125 amp service, it’s important to consider the service or feeder rating. Web one wire size for 125 amp sub panel that can be used is 12 awg (american wire gauge). 125 amp sub panel 2 awg copper conductors are sufficient, exactly as bob has mentioned. Web proper wire gauge recommendation for installation of 125 amp sub panel. At 90 amps of load your voltage drop would still be under the 3% recommended threshold.
