|Copper Wire Condcutors|
Copper is one of the best conductors for electricity. It is used in almost all facet of electrical engineering. Copper wires can be used in or as:
1. Control and protection wires
2. Building wiring
3. Grounding conductors
4. Distribution conductors
5. Transmission conductors
6. Magnetic wires
Copper wires come in various sizes and could be insulated or bare. Consequently, they also have different ampacities. These article is a collection of copper wire ampacities.
Ampacities of Copper Wire
Alowable Ampacities of Insulated Conductors Rated 0 through 2000 Volts, 60°C through 90° C (140° F through 194°F) Not more than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on Ambient Temperature of 30° C (86° F). This Data is based on NEC Table 310-16. Click here for the table...
The following table is provided for your convenience. We believe that the data presented is reliable, however we make no claim as to the accuracy of the information. Applicable To Conductors:
Rated 0 Through 2000 Volts
60°C Through 90°C (140°F Through 194°F)
Not More Than Three Current-Carrying Conductors in
Raceway, Cable, or Earth (Directly Buried)
Ambient Temperature of 30°C (86°F) Click here for the table...
Copper Wire Ampacity Charts
Allowable Ampacities of Insulated Conductors, Rated 0-2000 Volts, 60° to 90°C (140° to 194°F)
NOT MORE THAN THREE CONDUCTORS in Raceway or Cable or Earth, (Directly Buried), Based on Ambient Temperature of 30°C (86°F) Click here for the table...
Wiring Conductor Ampacity to Temperature RatingConductors with 90°C rated insulation can be used on circuit breakers rated for 60°C or 75°C wiring only if their size is based on the ampacity of the lower temperature-rated wire (reference Table 2). If the 90°C wire size were to be selected based on the ampacity allowed in the 90°C column of Table 2, the smaller resulting wire size would generate additional heat at the circuit breaker terminals and possibly cause nuisance tripping. Click here for the table...