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Minimum Circuit Ampacity and Conductor Size

This calculator is based on NEC Table 310.15(B)(16).
Refer to NEC Articles 110.14C(C), 210.19(A)(1), 430.22, Ch. 9 Table 8, etc. for more information.

Inputs for calculating Minimum Circuit Ampacity:

Continuous Load, in Amperes, "CL"
Non-Continuous Load, in Amperes, "NCL"
Number of Current Carrying Conductors in the Raceway, COND
Ambient Temperature, TEMP

Optional Inputs, for calculating Voltage Drop, "VD":

Voltage, "E"
Circuit Length in Feet, ONE WAY, "D"
Select Three Phase or Single Phase, PH

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