230 VAC 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.

Specifications

• 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

Schematic

Parts List

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