Current Transformers

Intellimeter offers a wide variety of Current Transformers, Split-Core, and Solid-Core for the most common circuit sizes.


The current transformers supply the meter with a current proportional to that of the main circuit of sufficiently reduced amplitude for an accurate measurement.


The measuring devices cannot be directly connected to the high-magnitude supplies. Hence current transformers are used to supply those devices with currents of magnitude proportional to those of power.


  • The 100 mili-Ampere secondary types of current transformers, are small in size and intrinsically safe, or self shorting eliminating the need for shorting blocks or a separate current transformer cabinet
  • Transformers with a 5 Ampere. secondary require shorting blocks, also available through Intellimeter
  • All the solid core current transformers are Revenue Grade and Approved by Measurement Canada
  • Our latest models are UL approved
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i-meter Solid Core Current Transformer
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i-meter Solid Core Current Transformer 200mA
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i-meter Split Core Current Transformer 400A
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i-meter Solid Core Current Transformer 600A

Solid Core


The window size varies on the amperage
Ratio Inside Diameter Inches Outside Diameter Inches Thickness Inches Weight gr/lbs Lead Length in ft. MC Approval UL FIle
100:0.08 0.5 1.1 x 1.2 0.78 69 / 0.15 6 AE-2486 UL2808, File No. E515601
200:0.1 0.76 1.8 0.7 100 / 0.22 6 AE-248 UL2808, File No. E515601
200:0.08 0.76 1.8 0.7 100 / 0.2 6 AE-2585 UL2808, File No. E515601
400:0.1 1.69 3.07 1 254 / 0.5 6 AE-2566 UL2808, File No. E515601
400:0.08 1.69 3.07 1 254 / 0.56 6 AE-2566 UL2808, File No. E515601
600:0.1 3.54 5.7 1 655 / 1.44 6 AE2566 UL2808, File No. E515601
600:0.08 3.54 5.7 1 655 / 1.44 6 N/A UL2808, File No. E515601
800:0.1 5.9 8.66 1.57 1,587 / 3.5 6 AE-2566 UL2808, File No. E515601
800:0.08 5.9 8.66 1.57 1,587 / 3.5 6 N/A UL2808, File No. E515601
1000:0.1 5.9 8.66 1.57 1,587 / 3.5 6 N/A UL2808, File No. E515601
1000:0.08 5.9 8.66 1.57 1,587 / 3.5 6 N/A UL2808, File No. E515601
200:5 3/4 2 0.6 2 AE-1368 rev.1 C/US UL recognized
400:5 1 1/2 3 1/2 0.9 2 AE-1180 CSA & UL recognized
600:5 3 1/4 2.78 5.6 X 5.6 NO Leads T-188 CSA & UL recognized

Split Core


The window size varies on the amperage
Window Inside Diameter Outside Diameter Inches Thickness Inches Lead Length in ft. Approvals Notes
100:0.033 16mm 35mm x 45mm 30.8mm 3 Recognized Component ETL To be used with a Multiplier of 3 or special programming on the i-meter 45
100:0.1 2
200:0.1 2 Recommended for use with the MF-Series Meter and i-meter 636
200:0.1 19mm 51mm x 54mm 16.6mm 3 Recognized Component ETL
400:0.1 2
400:0.1 31.8mm 82mm x 85mm 26.4mm 3 C/US UL Recognized