Current Sensing Switch is designed to operate a Relay Contact when there is a DC current through the sense resistor exceeds the set point, Set point adjustable from 1A to 3Amp using on board potentiometer. This circuit can offer over current protection to your project.
Specifications
Input: 12 VDC
Range: 1 to 3 A selectable with onboard preset
Output: SPDT Relay (Normally Open & Normally Closed)
Power Battery Terminal (PBT) and Terminal Pins for easy connection
Four mounting holes of 3.2 mm each
PCB dimensions 52 mm x 47 mm
Schematic
For more detail:Β Β Over Current Protection Switch