Table of Contents
- 1 What wire gauge do I need for a 100 amp subpanel at the end of a 60 wire run?
- 2 How many amps can 6 AWG handle?
- 3 What size ground wire do I need for 100 amp service?
- 4 What size wire for 100 amp sub-panel?
- 5 Can a 200 amp main panel be used for a barn?
- 6 What size ground wire do I need for a 100 amp breaker?
What wire gauge do I need for a 100 amp subpanel at the end of a 60 wire run?
You need a 3-3-3-5 copper SER cable to carry 100 amps (that’s three #3 gauge for the two hot wires and the neutral and a #5 gauge for the ground). If you want to use aluminum, you need at least #2 gauge or perhaps #1.
How many amps can 6 AWG handle?
55 AMPS
Size & AMP Ratings
| NM, TW, & UF WIRE (Copper Conductor) | SE CABLE (Copper Conductor) |
|---|---|
| 12 AWG – 20 AMPS | 6 AWG – 65 AMPS |
| 10 AWG – 30 AMPS | 4 AWG – 85 AMPS |
| 8 AWG – 40 AMPS | 2 AWG – 115 AMPS |
| 6 AWG – 55 AMPS | 1 AWG – 130 AMPS |
What size ground wire do I need for 100 amp service?
| GROUNDING ELECTRODE CONDUCTOR SIZING (Table 250.66) | ||
|---|---|---|
| Size of Main Panel | Copper Conductors | Aluminum or Copper-Clad Aluminum |
| 100 Amps | #8 AWG | #6 AWG |
| 125 Amps | #8 AWG | #6 AWG |
| 150 Amps | #6 AWG | #4 AWG |
What size wire is rated for 100 amps?
A 100 amp sub panel wiring size requirement is #4 for copper wires and #2 for aluminum wires.
Can you feed a 100 amp sub panel with a 60 amp breaker?
You can feed a 100 Amp panel with a 60 Amp breaker. Keep in mind that the sub panel needs to be rated above the breaker size.
What size wire for 100 amp sub-panel?
What Size Wire for 100 Amp Sub-Panel? 1 Single Conductor #3 gauge THHN Copper Wire 2 Needs to be buried in a conduit 3 most popular
Can a 200 amp main panel be used for a barn?
Another thing, which may possibly change things. The barn panel will be fed from a 100 amp sub panel in his garage. Is this a problem? To go from the 200 amp Main Panel to barn would add an extra 100′ roughly as its a long ranch house and would have to go around a big concrete patio.
What size ground wire do I need for a 100 amp breaker?
Your grounding conductor must be run also and it is sized to the breaker also. A 100A breaker would require a #8 cu or a #6 al. If you are calculating full load then the grounding conductor must take voltage drop into account and rise a full two sizes more just like the current carrying conductors or a #4 cu or #2 al.
What size feeder wire for a 100 amp service?
A 100amp service can use #4 cu or #2al, and Section 310-15 (b) (6) says the feeder conductors don’t have to be larger than the service entrance conductors. If the service is larger than 100amp, you will have to go back to Table 310-16. If you have already ran the wire, just change out the 100amp breaker to a 90amp, and call it good.