Over Current Protection Switch

  • Rajkumar Sharma
  • 19,188 Views
  • easy
  • Tested

Current_Sense_Switch_IMG_4786

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

Current_Sense_Switch_SCH

Parts List

Current_Sense_Switch_BOM

Video

PCB

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