🌙
More Tables
Conductors Sizing Based on Current Value (310-16)
Single-Phase Dwelling Services and Feeders Sizing
Ambient Temperature Correction Factors (310-15(B)(1))
Adjustment Factors for More Than Three Current-Carrying Conductors (310-15(C)(1))
Grounding Electrode Conductor Sizing (250.66)
Grounded Conductor, System Bonding Jumper Sizing (250.102(C)(1))
Equipment Grounding Conductor Sizing (250.122)
Maximum Motor OCPD Rating (430.52)
FLA for Single-Phase Motors (430-248)
FLA for Three-Phase Motors (430-250)
Locked-Rotor Motor Current for Selection of Disconnecting Means (430-251(B))
Maximum Rating or Settings of OCPD for Transformer (450.3(B))
Maximum Number of Conductors in Electrical Metallic Tubing (EMT) (C.1)
Maximum Number of Conductors in Flexible Metal Conduit (FMC) (C.3)
Maximum Number of Conductors in Rigid PVC Conduit, Schedule 40 and HDPE Conduit (C.11)
Table 310.12 Single-Phase Dwelling Services and Feeders
Service or Feeder Rating
(Amperes)
Conductor Size
(AWG/kcmil)
Copper
Aluminum or Copper-Clad Aluminum
100
4
2
110
3
1
125
2
1/0
150
1
2/0
175
1/0
3/0
200
2/0
4/0
225
3/0
250
250
4/0
300
300
250
350
350
350
500
400
400
600