NEC Table 250.122: Minimum Size Equipment Grounding Conductors for Grounding Raceway and Equipment

NEC Table 250.122

Rating or Setting of Automatic Overcurrent Device in Circuit Ahead of Equipment, Conduit, etc., Not Exceeding (Amperes)Size (AWG or kcmil)
CopperAluminum or Copper-Clad Aluminum
151412
201210
60108
10086
20064
30042
40031
50021/0
60012/0
8001/03/0
10002/04/0
12003/0250
16004/0350
2000250400
2500350600
3000400600
4000500750
50007001250
60008001250

Source: NFPA 70