How it works: 
When power is on, relay turns ON the timer starts and keep that position, until end of set time. Upon expiry of the time , relay turns off for set time 1 or 5 minutes. Time select of W2. W2 cloced - 1 minute, W2 open - 5 minute. After this time relay turns ON and the cycle is repeated until the power is not turned off. 
LED indication for power is on and activated relay. 
The relay start time is set by a trimmer potentiometer (1 to 24 hours). 
By jumper W1 is selected seconds or hours. This serves to set the time relay OFF. W1 closed - seconds. W1 open - hours. Select seconds and adjusts the time. Then, changes to hours. The selection is performed at power off. 
Dimensions PCB - 49 x 29 mm. 
The output, is relay with: 
- Normally open contact - NO. 
- Common contact - COM. 
- Normally closed contact - NC. 
Relay: 15А/125V DC, 15A/24V DC or AC, 10A/250V AC. 
Power supply - 10 to 14V DC. 
Current relay is turned off - 8mA, current relay is turned on - 48mA. 

This product is an assembled module. 
Also available as a ready product (with box) - Product code 1661. 

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)).