HWCT 5/5ma Current Transformer
Easy to use the module, this HWCT 5A/5MA Micro Current Transformer sensor has a 1:1000 turns ratio meaning for every 5A of current flowing through the conductor, 5mA will flow through the CT.
Availability: In Stock
| Operating current up to | 5A |
| Maximum current | 20A |
| Turns ratio | 1:2500 |
| Current ratio: | 5A:2mA |
| DC resisstance | 155 ohm |
To measure volts from a microcontroller analog pin a resistor needs to be connected across the two terminals of the CT to allow a voltage to be measured across it. A 220 Ohm resistor, using Ohm’s law V=IR, the output of the CT will be 1.1 Volts AC, for every 5mA of CT current (or every 5A of measured current).
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