5pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module
$36.36
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Specifications
Voltage:5V DC (±1.5V)
Power consumption
Output: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 seconds
Second gear:range 0.2 seconds – 300 seconds (5 minutes), accuracy:0.3 seconds
Third gear:range 0.2 seconds-30 minutes, accuracy:1.8 seconds
Four gears:range 0.2 seconds – 300 minutes (5 hours), accuracy:18 seconds
Input:Voltage signal, above 1.5V is the effective signal, the current needs at least 0.1mA.
Dimensions:length 70mm * width 25mm * height 20mm
Screw hole:center distance 64.5, aperture 3.0mm
Wiring
V+ module DC powered positive
GND 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 30V
Normally open contact of the NO relay
Constant contact of NC relay
COM 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 switch is placed in the Min position, the unit is:minute
Example
Request a delay of 50 minutes
1. The range is placed at 300 position
2. The time unit is placed in the Min position.
3. Adjust the adjustable resistance to 50 position, adjust to 300, so adjust to 1/5 is 50.
Note:The potentiometer adjustment can also be quickly adjusted with the multimeter voltage file. For example, the range is 30, and it 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 can also be selected to 300.
Applications
Combined with the travel switch and the inductive switch
1. Timeout automatically closes the door
2. Pipeline product flow monitoring
3. Current flow monitoring such as water flow
4. Other uses
Package Included
5 x QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch
Weight | 0.2 kg |
---|
Customers Also Viewed
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car Module
$41.54Driver ModuleAdd to cartDescriptionThe four channel L298N motor drive module integrates two L298N chips and can drive four DC motors to realize the control of forward and backward rotation and motor speed. The module is equipped with LM2596S step-down chip. If the motor with 7V voltage or more is driven, 5V power can be output to the control …
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car ModuleRead More
Geekcreit D1 Mini ESP32 ESP-32 WiFi+bluetooth internet of Things Development Board Based ESP8266 Module
$21.86Motherboard & Development BoardAdd to cartMore informations:https://github.com/LilyGO/ESP32-MINI-32-V2.0DescriptionThis is D1 Mini ESP32 ESP-32 WiFi+bluetooth Internet Of Things Development Board.Use exampleit can also match the next productPackage included4 x Long female pins4 x short female pins4 x Normal pins1 x mini D1 ESP32
AF1020 Dust-proof Probe Super-stable Pipe-type Current-type Temperature and Humidity Transmitter Temperature Senor Humidity Sensor
$176.16Solar CollectorsAdd to cartSpecificationModel:AF1020 Type Temperature and Humidity TransmitterTemperature measurement range:- 40 ~+80 (℃)Measurement accuracy:+-0.5 (℃)Working Voltage 15-36 (V)Humidity accuracy:+-3% RHHumidity measurement range:0-99.9% RHCurrent output:4-20 m AInstructions1. Power cord positive DC18~36V (red wire)2. Power ground wire GND (black wire)3. Humidity current output 4~20MA (yellow line)4. Temperature current output 4~20MA (white line)Installation sequence1. Connect the red, black, yellow and …
3Pcs 5M Meter thermometer Electronic Digital Display FY10 Embedded thermometer indoor and Outdoor Temperature Measurement
$20.72Test & Measuring ModuleAdd to cartFunction introductionOverall size:48*28*15mmInserted hole size:46*27mmLCD temperature display-50→ to 110→ temperature measurement, 0.1 degree resolution.C and F display versions are availableStandard 0.8m waterproof probeCable length:5 meterPackage includes3 x Thermometer
Peacefair PZEM-028 AC Digital Multifunction Meter Voltmeter Ammeter 0~100A/400V Power Factor Meter
$27.97Electronic Accessories & SuppliesAdd to cartError adjustmentThe product is 100% calibrated before leaving the factory, and the user can also manually adjust the error by himself. The method is as followsStep 1:Long press the button (about 3 seconds) until the digital digit on the screen flashes, then release the button;Step 2:Digital flashing means entering the error adjustment state, the digits …
3pcs 433MHz RF Wireless Receiver Module Transmitter kit + 2PCS RF Spring Antenna OPEN-SMART for Arduino – products that work with official for Arduino boards
$12.11Smart ModuleAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.DescriptionThe kit includes one pair of transmitter and receiver modules and one pair of spring antennas for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage Generator
$55.81Power Supply ModuleAdd to cartFeatureThe high-voltage module uses the principle Tesla coil is made of high-voltage pulse output voltage current, small size, high efficiency, simple external circuit(just plug in the switch, the battery can be) discharge intensity violent.SpecificationModel:MC-105Volume:Length 65mm Diameter 24mm, Diameter of cut surface 22mmVoltage:Input DC3.7-6V, output DC200-400KVCurrent:Input 4A, output 0.5ALength:Input 10 cm or so, the output is …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage GeneratorRead More
Reviews
There are no reviews yet.