The time relay has been designed based on a timer 555-U1 connected to the anticipating multivibrator circuit. The relay will be reset using the B2 pushbutton and will remain in anticipating mode. Pushing B1 once will initiate the relay for a defined period. The time setting of the relay is determined by the C4 capacitor and the Tr1 trimmer and can be adjusted in the range 0 to 160 seconds. The LED indicates On/Off position of the relay. 
- Supply Voltage: 10 to 16 V /100 mA. 
- Pushbutton START. 
- Pushbutton STOP. 
Overall dimensions PCB 50x45mm. 

This product is an assembled module. 
Also available as an assembly kit - Product code 1041. 

The appearance may differ from the one in the photo without changing the parameters of the product (This means that there may be a difference in the elements used (appearance, placement, color, shape or value)).