Connectivity Guide

VFD cable selection guide AWG size selection per NEC

Wire size is suggested based on horse power (HP) and the full load current (FLC) × 125% per NEC Art. 430-122 (A). FLC is determined from NEC Art. 430- 250.

Suggested AWG

Drive HP

230V 3Ø

460V 3Ø

575V 3Ø

½–2

16*, 14

16*, 14 16*, 14

16*, 14 16*, 14

3–5

14 10

7½–10

14 10 10

14 12 10 10

15

6 4 4 3 1

20 25 30 40 50 60 75

8 8 6 4 3 1

8 6 6 4 3 1

2/0 3/0

250 KCMIL 350 KCMIL

100 125 150 200 250 300

2/0 3/0 4/0

— — — — — —

2/0 3/0

350 KCMIL 500 KCMIL

250 KCMIL 350 KCMIL 500 KCMIL

— —

350–500

—

* 16 AWG may be used depending on compliance with the applicable sections of NEC. Final determination can only be provided by the local AHJ.

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