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Features:

It is a timer relay module with high precision, stable and reliable performance.
Power off delay disconnect module, is special for delay of cooling fan, exhaust fan, etc.
Function: Turn on the output when there is a signal, and turn off the output after the signal disappears.
Fine workmanship and good performance. Long service life.

Specification:
Voltage: AC 100V-220V
Power consumption: <1.0W (standby zero power consumption)
Time range: (4 gears, selected by switch)
First gear: range 0.2-30 seconds, accuracy: 0.1 seconds
Second gear: range 0.2-300 seconds (5 minutes), accuracy: 0.3 seconds
Third gear: range 0.2-30 minutes, accuracy: 1.8 seconds
Fourth gears: range 0.2-300 minutes (5 hours), accuracy: 18 seconds
Output: The output voltage is the same as the input voltage, and the maximum power supply capacity is 10A.
Lifetime: 100,000 movements
Dimensions: 8.2x3.1cm/3.23x1.22inch
Color: As shown
Quantity: 1 Pc
Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

When K is closed: heater and fan work immediately
When K is disconnected: the heater stops working immediately, and the fan stops working after a period of time

【Binding Post】
L firewire access
The live wire on the output side of the L2 switch is taken from the live wire of the heating element
N neutral (common)
FAN fan output, live wire

【Instructions】
Time range setting:
When the selector switch is placed in the 30 position, it means 0-30 is adjustable
When the selector switch is placed in the 300 position, it means 0-300 is adjustable
Adjustment of time value:
Turn the adjustable resistor counterclockwise in the - direction to decrease the time, and turn it clockwise in the + direction to increase the time
Time unit setting:
When the selector switch is in the Sec position, the unit is: seconds
When the selector switch is in the Min position, the unit is: minutes
Example:
Request a 50-minute delay:
1. The scope is placed at the 300 position
2. The time unit is placed in the Min position
3. Adjust the adjustable resistance to the 50 position, and the full adjustment is 300, so the adjustment to 1/5 is 50.
Note: The adjustment of the potentiometer can also be quickly adjusted with the voltage gear of the multimeter. For example, the range of 30 needs to be adjusted to 12, then the voltage can be adjusted to 2.
t=Ut/5*30=2.0V / 5.0V * 30 =12
Ut is the voltage measured by the multimeter, 30 is the range selected by the selector switch, and it can also be selected to 300