Current Transformer Secondary Wire Sizing Calculator

Use the calculator below to determine the proper gauge wire for your application.

Current Transformer Burden Rating(VA):
Nominal CT Secondary Current(Amps):
Wire Length Between CT and Meter(ft):
Input burden of Meter(VA):
Recommended Wire Size:
Maximum CT Rating(Ohms):
Metering Rating(Ohms):
Maximum Secondary Resistance per Foot(Ohms):
16AWG 0.00417
14AWG 0.00263
12AWG 0.00165
10AWG 0.00104
8AWG 0.00065
6AWG 0.00041
Current Transformer Secondary Wire Sizing Calculator