These current sensors are a low cost solution for monitoring single phase AC loads, they contain an AC rectifier circuit to directly output a 0 to 5VDC signal and require no power supply. There are three full scale ranges which can be selected by simply moving the jumper on the device to switch between 10A, 20A and 50A sull scale. The output signal is proportional to the average current which will vary slightly from the results shown on an RMS measuring ammeter, depending on the load.
Note: If you are sensing low currents below 10A you can wrap the primary cable through the hole twice which makes the full scale current 5A. If you can fit 10 wraps of the primary that would make this a 1A full scale sensor.
This sensor is a non clamping style and is on sale for clearance since we have a new clamping / split core current transformer which is easier to install, the sensor can be installed without disconnecting the current carrying cable.
Dimensions:
Part Number Scheme: