| Property |
Value |
| Gauge 15 Diameter (in) |
0.0571 in |
| Gauge 15 Diameter (mm) |
1.45 mm |
| Gauge 15 Turns of Wire (per inch) |
17.5 turns/in |
| Gauge 15 Turns of Wire (per cm) |
6.9 turns/cm |
| Gauge 15 Cross-Sectional Area (kcmil) |
3.26 kcmil |
| Gauge 15 Cross-Sectional Area (mm²) |
1.65 mm² |
| Copper Resistance (Ω/km or mΩ/m) |
10.45 mΩ/m |
| Copper Resistance (Ω/kft or mΩ/ft) |
3.184 mΩ/ft |
| NEC Copper Wire Ampacity (60°C) |
0 A |
| NEC Copper Wire Ampacity (75°C) |
0 A |
| NEC Copper Wire Ampacity (90°C) |
18 A |
| Fusing Current (10 s) |
140.0 A |
| Fusing Current (1 s) |
502.0 A |
| Fusing Current (32 ms) |
2800.0 A |
Frequently Asked Questions (FAQs) About 15 AWG Wire
What does AWG stand for?
AWG stands for American Wire Gauge, a standardized system for measuring wire sizes. The smaller the AWG number, the larger the wire diameter.
How does 15 AWG compare to 14 AWG?
15 AWG wire is smaller than 14 AWG, with a diameter of 1.45 mm compared to 1.628 mm for 14 AWG. It has a lower ampacity (e.g., 18 A at 90°C vs. 25 A for 14 AWG) and higher resistance.
What applications are suitable for 15 AWG wire?
15 AWG wire is typically used for very low-current applications, such as control circuits, small electronic devices, or automotive wiring, with an ampacity of up to 18 A at 90°C.
What happens if the fusing current is exceeded?
If the fusing current is exceeded (e.g., 140 A for 10 seconds in 15 AWG), the wire will overheat and melt, potentially causing a fire hazard or circuit failure.
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