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Current Sensor Customization
How to Pick the Right Item
Understanding Amperage Ratings and Burden Resistors
What is a Current Transducer and What Types Do You Sell?
What is a Transformer and How Does it Work?
Residential Energy Efficiency Monitoring Explained
Choose an option:
Determine the minimum VA Rating required for your CT.
Determine the max length of your CT leads based on a VA Rating.
Enter the CT current output in amps (0.1, 1, 5, etc):
Do you want to use 100% of the rated current or 120% (per IEC) as the max current?
Do you want to enter the meter resistance as a burden (Ω) or as a VA rating?
What is the value of the meter resistance?
Select a gauge of wire:
Specify length requirement (in ft):
Specify CT VA Rating:
Understanding the VA Rating of CTs
You can use this calculator to do a few things:
Determine the max length of wire you can use with a meter (w/o losing accuracy).
Determine what VA rating you would need for a CT given a required distance.
Determine the effect of different gauge wire on the CT circuit.