I need two more AccuCT 50A x 10mm split-core CT’s
I bought one on ebay before reading that the 333 version is not correct, I need 50mA
The stuff shop still has some.
https://stuff.iotawatt.com/product/accuct-50a-x-10mm-split-core/
Thanks!
I tried to order, site won’t let me enter my shipping information
Can you be more specific?
site says “invalid shipping address”
Send me a PM with a screenshot.
I see them in stock but it is July 2026 so not sure if the stock tracker is updated or not. I need 1 or two. Btw what other CT do you recommend that has the best accuracy for low power devices? Think of items that use 1-5w per circuit.
I need to order an additional 7 CTs of various sizes.
On the shop, the direct link to the 50amp one still works, but I can’t find a way to see all the CT sizes available.
@overeasy are they still available? Do you have links to the different ones with different current ratings?
I have 50A ($15) and 600A ($48) CTs remaining. If you would like some, send me a PM with the quantity you need, your email address and the shipping address. I’ll send a PayPal invoice for payment.
There are some 100A SCT013-000 100A:50A offered on Amazon. The pictures look like genuine YHDC products, which I have used with good results, but beware of counterfeits and units with voltage output. IoTaWatt requires 50mA output at rated primary current.
Great, thanks for the offer! I’ll send you a private message to buy some.
In general, for others reading, and to be able to source CT clamps in future, other than being 50mA, what else is required for compatibility with IotaWatt? I’ve seen in the past that to use with some CT clamps you said you have to remove the burden resistor but it wasn’t clear to me when/why. Is there anything else to consider before buying random clamps from AliExpress? 
It simplifies things if the CT is listed in the IoTaWatt tables. Those are CTs that I have tested and set detailed calibration parameters so you can configure by simply selecting from the menu.
The CT connects with a 3.5mm stereo plug (tip and sleeve). Simple enough to attach one if you have those skills.
The conversation around removing burden resistors is largely a hack to adapt voltage type CTs. Although some can be made to work, it is usualy with a loss of resolution as the resulting output only uses a fraction of the ADC range.
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