Bundle ampacity calculator.
From bundle composition to current capacity. Account for wire size,
temperature, loading, and operating altitude.
Model assumptions. These calculators make simplifying assumptions about wire type and construction, bundling, and the installation environment. They assume constant loading and steady operating conditions; changing loads and transient heating are not modeled.
For more complex systems and loading profiles, contact Lectromec to find out more about our advanced ampacity thermal models.
Wire-by-wire results
| Wire group | Count | ΔT | Free air / wire | Derated / wire | Bundle contribution |
|---|
Contribution = derated current per wire × group wire count × overall bundle loading. Both the total bundle limit and each individual wire limit apply.
For informational purposes only. Results are estimates and do not establish design suitability or compliance. Qualified engineering personnel must review applicable standards, aircraft and equipment requirements, manufacturer specifications, installation conditions, and the complete engineering design before use.