QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module
$10.92
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
1 x QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch
Weight | 0.04 kg |
---|
Customers Also Viewed
MK1 Acrylic Remote Ver. Tony DIY Arc Reactor Lamp Kit Remote Control Illuminant LED Flash Light Heart Set
$70.86Engraving Parts & AccessoriesAdd to cartThe diaplay box and the bracket inchPROOF THAT TONY STARK HAS A HEARTinch is sold separately, please click that:ID:1429112The following chart shows different versions of our ARC reactor DIY model lamp, you can choose your favorite ones.ARC Reactor DIY Model Lamp Version:Please refer toMK1 Acrylic Frame Version:ID:1420733MK1 Aluminum Alloy Frame Version:ID:1434480MK2 Acrylic Frame Version:ID:1434467MK2 Stainless …
5pcs DC Motor Driver Board 2 Way DRV8833 Motor Drive Module DC 3-10V
$10.17Driver ModuleAdd to cartParametersSize:18.5 x 16 mmInput voltage:3-10VSingle H bridge output current:1.5A, can drive 2 dc deceleration motors.Built-in overcurrent protection, short circuit protection, undervoltage latching and overheating protection. Sleep mode with low power consumption.Purpose:drive dc motor and 4-wire stepping motor up to 1.5A.InstructionsULT low level is in sleep mode (need to disconnect J2 short welding spot behind the …
5pcs DC Motor Driver Board 2 Way DRV8833 Motor Drive Module DC 3-10VRead More
M5Stack ESP32 Open Source Faces Pocket Computer with Keyboard/Gameboy/Calculator Development Board
$177.66Smart ModuleAdd to cartIntroductionFACES Kit is a feast of functional panels, contains the most commonly used panels and keyboards with MEGA328 processor inside, communication protocol through IIC(0x08) as slave mode. With these 3 different panels, it will be very easy to support keyboard interaction with your M5Core.If you up for some classic video game, PyGamer panel plus M5Core …
10pcs 1S 3.7V 4A li-ion BMS PCM 18650 Battery Protection Board PCB for 18650 lithium Battery Double MOS
$13.12Battery Protection ModuleAdd to cartSpecificationsOvercharge detection voltage:4.25 ± 0.05VOvercharge release voltage:4.23 ± 0.05VOver discharge detection voltage:2.45 ± 0.1VUpper limit continuous current:4AOvercurrent detection current:5ACharging voltage:4.2VProduct Size:35 * 4 * 2.2MMIC components:DW01 + 8205A * 2 The main function:Overcharge protection, over discharge protection, short circuit protection, overcurrent protection.Wiring InstructionsB +:Connected to the battery positive.B-:Connected battery negative.P +:For the battery pack output …
CBB61 3Pcs 1.2UF Starting Capacitance 450V AC Fan Capacitor CBB Motor Run Capacitor
$4.04Module ComponentsAdd to cartFeatures1.Use polypropylene film with excellent electrical properties as the medium, and vaporize the metallized layer as the electrode under high vacuum conditions; 2.Use High-quality epoxy resin potting material is filled and sealed; the product has stable capacity, low loss, high pressure resistance, and good self-healing.3.Application:air conditioners, refrigerators, washing machines, electric fans, ovens, etc.SpecificationModel:CBB61Shell Material:ABSLine length:10cmShell …
CBB61 3Pcs 1.2UF Starting Capacitance 450V AC Fan Capacitor CBB Motor Run CapacitorRead More
Solar Charge Controller 15A LCD Display Controller Solar Controller for PWM Solar Power Panel Water Pump
$76.94Solar ControllersAdd to cart15A Controller For PWM Solar Panel Water PumpSpecificationMaterial:Acrylonitrile Butadiene Styrene (ABS)Color:BlackSize:14x9x3cmSystem voltage:12N/24V adaptiveUSB output:5V/2ACharging current:15ACharging voltage:13.7VRelease point cutoff voltage:10.7VWorking temperature:-20~+60°CFeaturesLCD displayPWM battery chargingAll necessary protections equippedAdjustable cotrolling parameter of the systemBuild-in industrial micro controllerBuild-in short-circuit protection, open-circuit protection, reverse protection,Over-load protection.Dual mosfet reverse current protection,low heat production.Application:Solar ControllerPackage include1 x solar controller
3pcs 5-30V 10A Wide Voltage Trigger Delay Relay Module Timer Module 2 Trigger Modes
$12.31Relay ModuleAdd to cartDescriptionTime can be adjusted by a potentiometer to meet the use of most of your occasions.With Micro USB 5.0V power supply input, it is very convenient to use.5-30V ultra wide power supply voltage.Two trigger modes:external trigger and onboard buttons trigger.It has a relay suction indicator.Strong anti-interference ability, all kinds of interference under the relay will …
3pcs 5-30V 10A Wide Voltage Trigger Delay Relay Module Timer Module 2 Trigger ModesRead More
Reviews
There are no reviews yet.