Power ON Delay Switch

  • Rajkumar Sharma
  • 14798
    Views
  • easy
  • Tested

Power_ON_Delay_IMG

Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds.

Specifications

  • Supply input 5 VDC
  • Relay output SPDT relay
  • Relay specification 5 A @ 250 VAC
  • Preset adjustable range function
  • Power-On LED indicator
  • Screw terminal connector for easy relay output connection
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 44 mm x 42 mm

Schematic

Power_ON_Delay_SCH

Parts List

Power_ON_Delay_BOM

BC547 Datasheet

BC546

PCB

Comments

  • Chandrsekhar P

    Plz suggest me about 24 volts operating ON delay switch circuit with maximum 100 seconds delay.

    1 month ago
    • You can use a regulator to convert 24V to 5V, to power the circuit. For 100 sec delay try to increase the C1 capacitor.

      1 month ago

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