Minimum Output/Load Wire Sizing (based on breaker or fuse sizes)

  • Published on Mar 12, 2026
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Breaker or fuse Rating

@30ºC

Metric Wire Size (mm2)

15 Amps

#14 AWG

2.5

20 Amps

#12 AWG

4

25 Amps

#10 AWG

6

30 Amps

#10 AWG

6

40 Amps

#8 AWG

10

Table A-3. DC load output wire sizes.