Correct Ampacity Wire Size

Ampacity of Copper Wire @ 167F (75C)

Wire Gauge

In Conduit

In Free Air

14 AWG

15 Amps

20 Amps

12 AWG

20 Amps

25 Amps

10 AWG

30 Amps

40 Amps

8 AWG

45 Amps

65 Amps

6 AWG

65 Amps

95 Amps

4 AWG

85 Amps

125 Amps

2 AWG

115 Amps

170 Amps

1/0 AWG

150 Amps

230 Amps

2/0 AWG

175 Amps

265 Amps

3/0 AWG

200 Amps

310 Amps

4/0 AWG

230 Amps

360 Amps

General Ampacity Inverter

Inverter Model

Breaker Size

ANL Fuse

Minimum Cable Gauge

(In free air)

<5’

5’-10’

11’-20’

1000 W 12V

100 A

200 A

2/0 AWG

2/0 AWG

1/0 AWG

1500 W 12V

175 A

200 A

2/0 AWG

2/0 AWG

4/0 AWG

2000 W 12V

250 A

300 A

2/0 AWG

4/0 AWG

N/R

1500 W 24V

175 A

110 A

2 AWG

2 AWG

2/0 AWG

2000 W 24V

175 A

110 A

4 AWG

2 AWG

2/0 AWG

3000 W 24V

175 A

300 A

4/0 AWG

4/0 AWG

4/0 AWG

4000 W 24V

250 A

300 A

2/0 AWG

4/0 AWG

4/0 AWG

5000 W 48V

175 A

200 A

3/0 AWG

3/0 AWG

4/0 AWG

6000 W 48V

250 A

300 A

4/0 AWG

4/0 AWG

4/0 AWG