Does anyone know what are winding / ratio specs for this clamp? Does it have an internal burden resistor?
I've measured as much as 9VAC coming from it connected to a kitchen heater, so definitely gonna need a voltage divider, but I'd like to know the max first...
Update: I found the manufacturer, but the winding/ratio isn't listed CT234-30M-LA
Its rated for 75 ohm load resistor. But you can vary this to change the sensitivity (the winding is 510 ohms from the spec). Clearly if a few amps puts it at 7V is doesn't contain a burden resistor - its rated for 80 amps or so.