2 AWG Wire: Ampacity, Uses & Specs | PES Supply
2 AWG Wire — Ampacity, Uses & Specifications
2 AWG copper wire is rated for 95-115 amps. Used for 100A sub-panel feeds, generator transfer switches, and large commercial loads.
2 AWG Wire Specifications
| Specification | Value |
|---|---|
| AWG Size | 2 |
| Ampacity (60°C / 140°F) | 95A |
| Ampacity (75°C / 167°F) | 115A |
| Resistance (Ω/1000 ft, Copper) | 0.156 |
| Wire Types Available | THHN, THWN-2, XHHW-2, USE-2, PV Wire, NM-B (Romex), MC Cable |
| Typical Breaker Size | 95A (60°C) or 115A (75°C) |
Common Applications
2 AWG copper wire is rated for 95-115 amps. Used for 100A sub-panel feeds, generator transfer switches, and large commercial loads.
Voltage Drop Reference (2 AWG Copper, 240V)
| Distance (ft) | VD @ 115A | % Drop | Status |
|---|---|---|---|
| 25 ft | 0.90V | 0.4% | Good |
| 50 ft | 1.79V | 0.7% | Good |
| 100 ft | 3.59V | 1.5% | Good |
| 150 ft | 5.38V | 2.2% | Good |
| 200 ft | 7.18V | 3.0% | Good |
Compatible Breakers and Outlets
For 2 AWG wire at 75°C rating (115A), use a 115A double-pole breaker (240V circuits) or 95A single-pole breaker (120V circuits at 60°C rating).
Related Wire Types
- THHN/THWN-2: For conduit runs, rated 90°C dry / 75°C wet
- NM-B (Romex): For indoor residential wiring, rated 60°C
- MC Cable: Metal-clad, for commercial and exposed runs
- USE-2 / PV Wire: For solar and direct burial, rated 90°C
- XHHW-2: For wet/dry locations, rated 90°C