3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

Specifications Voltage 5V DC 1 5V Power consumption 1 0WOutput Passive output ie dry contact relay set of normally open normally closed output Do not exceed 10A at most Time range 4 files selected by switch First gear range 0 2 seconds 30 seconds accuracy 0 1 secondsSecond gear range 0 2 seconds 300 seconds 5 minutes accuracy 0 3 secondsThird gear range 0 2 seconds 30 minutes accuracy 1 8 secondsFour gears range 0 2 seconds 300 minutes 5 hours accuracy 18 secondsInput Voltage signal above 1 5V is the effective signal the current needs at least 0 1mA Dimensions length 70mm width 25mm height 20mmScrew hole center distance 64 5 aperture 3 0mm Wiring V module DC powered positiveGND The DC supply of the module is also the reference GND of the signal voltage IN signal voltage input low level below 1V high level above 1 5V uncertain in the middle Up to 30VNormally open contact of the NO relayConstant contact of NC relayCOM relay contact common Instructions Time range setting When the selector switch is placed in the 30 position it means 0 30 adjustable When the selector switch is placed at position 300 it indicates that 0 300 is adjustable Adjustment of time value Adjustable resistance rotates counterclockwise to the direction of the number to reduce the time clockwise to the direction increases the time Time unit setting When the selector switch is placed in the Sec position the unit is second When the selector swit