Table
Panel Lug Wire Range Reference
Panel Lug Wire Range Reference reference with assumptions and boundary notes.
Reference boundary
Panel lug marking reference only. It does not approve conductor termination, torque, parallel conductors, or conductor size.
Reference table
Decode common panel lug markings by conductor material, temperature marking, and wire-range label context.
| Lug marking | Conductor material | Temp reference (C) | Wire-range context | Boundary |
|---|---|---|---|---|
| CU | copper conductor only | 75 | copper-only lug marking reference | lug label reference only; wire range, torque, and conductor preparation come from equipment markings |
| AL | aluminum conductor only | 75 | aluminum-only lug marking reference | lug label reference only; wire range, torque, and conductor preparation come from equipment markings |
| CU/AL | copper or aluminum conductor | 75 | dual-rated lug marking reference | lug label reference only; wire range, torque, and conductor preparation come from equipment markings |
| AL7CU | aluminum or copper conductor | 75 | 75 C lug marking reference | lug label reference only; wire range, torque, and conductor preparation come from equipment markings |
| AL9CU | aluminum or copper conductor | 90 | 90 C lug marking reference | lug label reference only; wire range, torque, and conductor preparation come from equipment markings |
Use notes
- Use this table for preliminary reference and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.