Classic Timer Based On 555 Timer

Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts.  This project is based on the Classic 555 Timer IC, triggering a TRIAC.  Input and Output is Optically Isolated.

  •  Supply input 12 VDC
  •  Mains supply input 240 VAC or 120 VAC ( Read Note for 120V/230V AC)
  •  Output: up-to 200 Watt
  •  Optically isolated Input / Output
  •  Onboard start and reset tactile switch
  •  Timer On LED
  •  Preset adjustable and jumper selectable for range
  •  Power-On LED indicator
  •  Screw terminal connector for easy mains supply input and load connection
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 46 mm x 91 mm

SCH2

 

CLASSIC TIMER CIRCUIT 010716

SCHEMATIC

CLASSIC TIMER PCB 010716

PCB LAYOUT

 

CLASSIC TIMER BOM 010716

PARTS LIST

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