The time relay is based on a Microchip microcontroller and allows time setting in the range of 0 to 99 minutes.
A dual seven-segment LED display is used to show the set and remaining time. Time input is performed using two push buttons:
- B1 - tens digit
- B2 - units digit
When power is applied, the display shows 00 and the relay remains off. To set a time of 7 minutes, button B2 must be pressed seven times. After approximately 10 seconds, the relay is activated and countdown begins.
Example:
For 59 minutes:
- Press B1 five times
- Press B2 nine times
The relay can be switched off manually before the countdown ends by pressing the buttons until the display returns to 00.
An LED indicates when the relay is active. The relay provides both normally open (NO) and normally closed (NC) contacts.

Technical Specifications:
Control unit: Microchip microcontroller.
Time range: 0 - 99 minutes.
Display: dual 7-segment LED.
Control: 2 push buttons (B1, B2).
Relay output: NO / NC contacts.
Status indication: relay ON LED.
Supply voltage: 9 - 14 V DC.
PCB dimensions: 69 x 55 mm.

This product is a DIY assembly kit.
It is also available as a fully assembled module - Product code 1553 (separate product). >