| Property |
Value |
| Gauge 28 Diameter (in) |
0.0126 in |
| Gauge 28 Diameter (mm) |
0.321 mm |
| Gauge 28 Turns of Wire (per inch) |
79.1 turns/in |
| Gauge 28 Turns of Wire (per cm) |
31.1 turns/cm |
| Gauge 28 Cross-Sectional Area (kcmil) |
0.16 kcmil |
| Gauge 28 Cross-Sectional Area (mm²) |
0.081 mm² |
| Copper Resistance (Ω/km or mΩ/m) |
212.9 mΩ/m |
| Copper Resistance (Ω/kft or mΩ/ft) |
64.9 mΩ/ft |
| NEC Copper Wire Ampacity (60°C) |
0 A |
| NEC Copper Wire Ampacity (75°C) |
0 A |
| NEC Copper Wire Ampacity (90°C) |
0 A |
| Fusing Current (10 s) |
14.0 A |
| Fusing Current (1 s) |
24.0 A |
| Fusing Current (32 ms) |
137.0 A |
Frequently Asked Questions (FAQs) About 28 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 28 AWG compare to 27 AWG?
28 AWG wire is smaller than 27 AWG, with a diameter of 0.321 mm compared to 0.361 mm for 27 AWG. It has the same ampacity (0 A at 90°C) but a smaller cross-sectional area and higher resistance.
What applications are suitable for 28 AWG wire?
28 AWG wire is typically used for extremely low-current applications, such as fine electronics, hobby projects, or small signal wiring, due to its limited ampacity.
What happens if the fusing current is exceeded?
If the fusing current is exceeded (e.g., 14 A for 10 seconds in 28 AWG), the wire will overheat and melt, potentially causing a fire hazard or circuit failure.
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