Current Transformer Wire Length Table

As the distance between the transformer and meter increases, the signal intensity falls. For all of the current transformers the maximum distance is determined by its VA burden and also the VA burden of the meter being used. Here is a table of the maximum recommended wire length for all of our current transformers using the recommended 16 guage copper wire.

Catalog Number
CT Ratio
Burden VA
Analog (.2 VA)
Digital (1 VA)
01293
50:5
2 VA
9 Ft.
5 Ft.
01306
75:5
2 VA
9 Ft.
5 Ft.
01297
100:5
2 VA
9 Ft.
5 Ft.
01298
150:5
2 VA
9 Ft.
5 Ft.
01299
200:5
2 VA
9 Ft.
5 Ft.
01313
250:5
2 VA
9 Ft.
5 Ft.
01300
300:5
2 VA
9 Ft.
5 Ft.
01305
400:5
2 VA
9 Ft.
5 Ft.
01301
500:5
2 VA
9 Ft.
5 Ft.
02303
600:5
2 VA
9 Ft.
5 Ft.
02459
750:5
2 VA
9 Ft.
5 Ft.
02304
1000:5
2 VA
9 Ft.
5 Ft.
37020
100:5
2 VA
9 Ft.
5 Ft.
37021
150:5
5 VA
24 Ft.
20 Ft.
37022
200:5
5 VA
24 Ft.
20 Ft.
37023
300:5
12.5 VA
61 Ft.
57 Ft.
37024
500:5
20 VA
98 Ft.
95 Ft.
37025
1000:5
25 VA

123 Ft.

119 Ft.
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simpson 229-2 leakage current tester
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