Copper busbars provide high electrical conductivity, strong short-circuit performance, and compact current-carrying solutions for switchboards, panels, and power distribution assemblies.
| Busbar Section | Cross-Sectional Area | Approx. Current |
|---|---|---|
| 15 × 3 mm | 45 mm² | ≈ 150 A |
| 20 × 5 mm | 100 mm² | ≈ 275 A |
| 30 × 5 mm | 150 mm² | ≈ 400 A |
| 40 × 5 mm | 200 mm² | ≈ 500 A |
| 50 × 10 mm | 500 mm² | ≈ 900 A |
Engineering note: Values are indicative references only. Final ampacity depends on allowable temperature rise, enclosure ventilation, orientation, spacing, altitude, surface finish, AC proximity effects, and the applicable electrical standard.
Aluminum busbars reduce weight and material cost while providing good conductivity. Their larger cross-sections and thermal conditions must be considered when matching copper ampacity.
| Busbar Section | Cross-Sectional Area | Approx. Current |
|---|---|---|
| 15 × 3 mm | 45 mm² | ≈ 110 A |
| 20 × 5 mm | 100 mm² | ≈ 200 A |
| 30 × 5 mm | 150 mm² | ≈ 290 A |
| 40 × 5 mm | 200 mm² | ≈ 360 A |
| 50 × 10 mm | 500 mm² | ≈ 650 A |
Engineering note: Values are indicative references only. Final ampacity depends on allowable temperature rise, enclosure ventilation, orientation, spacing, altitude, surface finish, AC proximity effects, and the applicable electrical standard.