Note: Ampacities based on 90°C system operating temperature with 40°C ambient temperature.
System
Conductor Size
Advanced Cable
Bus Systems
Interlocked
Armored Cable
(In Tray)
Three Single
Conductor
Cables In Conduit
(In Air)
600V
500 MCM
750 MCM
1000 MCM
637 Amps
805 Amps
960 Amps
405 Amps
500 Amps
585 Amps
477 Amps
598 Amps
689 Amps
5kV
500 MCM
750 MCM
1000 MCM
688 Amps
889 Amps
1061 Amps
425 Amps
525 Amps
590 Amps
473 Amps
579 Amps
659 Amps
15kV
500 MCM
750 MCM
1000 MCM
678 Amps
872 Amps
1040 Amps
470 Amps
570 Amps
650 Amps
481 Amps
588 Amps
677 Amps
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