# Using SCT013-020 or 030 with the SEN-31409 Curent Sensor Board **URL:** \ **Category:** Other\ **Created:** [September 25, 2026, 12:53pm UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613 "2026-09-25T12:53:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![dyeatman](https://avatars.discourse-cdn.com/v4/letter/d/bb73d2/32.png) [@dyeatman](https://community.sparkfun.com/u/dyeatman)\ **Post date:** [September 25, 2026, 12:53pm UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613/1 "2026-09-25T12:53:30Z")
I will be receiving my SEN-31409 board today and already have SCT013-020 and 030 sensors with the 3.5mm plugs However I am getting conflicting info as to how to use them with the SEN-31409. Can I simply plug them in and change the parameters or do I need to do more? Some places say I need to cut the burden resistor loose on the board and others say not to. Thank you, ---
**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\ **Post date:** [September 25, 2026, 7:09pm UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613/2 "2026-09-25T19:09:09Z")
You can just plug-and-play, looks like (the guide uses the same part #)…though it does mention needing [calibration](https://docs.sparkfun.com/SparkFun_Qwiic_Current_Sensor_ADE7953/software/arduino%20examples#example-07---calibration-offset) before real use to reduce noise [Hardware Assembly | SparkFun Non-Invasive Current Sensor - ADE7953 (Qwiic)](https://docs.sparkfun.com/SparkFun_Qwiic_Current_Sensor_ADE7953/hardware/hardware%20assembly) ---
**Author:** ![dyeatman](https://avatars.discourse-cdn.com/v4/letter/d/bb73d2/32.png) [@dyeatman](https://community.sparkfun.com/u/dyeatman)\ **Post date:** [September 25, 2026, 7:27pm UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613/3 "2026-09-25T19:27:32Z")
Thank you for the info. The guide talks about the SCT013-000 which is the 50ma output version where the ones I have are 1V output. A few places allude the 1V versions will work and others say no. Even Ai is consistent! ---
**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\ **Post date:** [September 25, 2026, 8:32pm UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613/4 "2026-09-25T20:32:45Z")
Ah, sorry - when I googled that part # they looked to be the same to me. On the 10A:1V version the clamp has a resistor of unknown value, which in theory would create a parallel circuit (combining with our own shunt resistor) [Schematic](https://docs.sparkfun.com/SparkFun_Qwiic_Current_Sensor_ADE7953/assets/files/SparkFun_Qwiic_Current_Sensor_ADE7953-e763cf3ea241a82f35d26a71c2f5d66c.pdf) If you have a known AC voltage source you could plug it in and see what value gets returned _with both the board and probe resistors in-place_ and calculate based on such… Assuming the winding ratio is 1800:1, the internal resistance should be 180 ohms, which would cause a parallel shunt resistance of 0.01499, so basically it would ignore the internal resistance and still measure fine but the code would need to be changed to reflect a ratio of 1800:1 as well ---
**Author:** ![dyeatman](https://avatars.discourse-cdn.com/v4/letter/d/bb73d2/32.png) [@dyeatman](https://community.sparkfun.com/u/dyeatman)\ **Post date:** [September 28, 2026, 10:45am UTC](https://community.sparkfun.com/t/using-sct013-020-or-030-with-the-sen-31409-curent-sensor-board/69613/5 "2026-09-28T10:45:19Z")
Thank you. I have installed the board with an SCT013-020 (20A) sensor. Changing the code now to talk to it and hopefully have answers later today… I have 20/30/40 and 50 here…and I have the SCT013-000 (100).