12V DC Adjustable Delay Timer Relay Switch Module (0-25 Sec) with Opto-Coupler Isolation - On/Off Control for Automotive, Home Automation & DIY Electronics Projects
$5.16
$6.89
Safe 25%
12V DC Adjustable Delay Timer Relay Switch Module (0-25 Sec) with Opto-Coupler Isolation - On/Off Control for Automotive, Home Automation & DIY Electronics Projects
$5.16
$6.89
25% Off
Delivery & Return: Free shipping on all orders over $50
Estimated Delivery: 10-15 days international
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SKU: 30844402
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Description
This delay relay module is widely used in robot, automobile lamp, intellectual product development, PLC and electronic development etc. The delay time can be adjusted through potentiometer, and the default value is 0.1s to 25 seconds. You can greatly extend the timespan by replacing a large capacitor or potentiometer. Protection against power reversal protection diode, better protection module. It can be accessed by a large current load (250V ac 10A or 30V dc 10A). Specification: Operating Voltage: DC 12V Load Capacity: AC 250V 10A; DC 30V 10A Delay Time: T(S)=1.1*R(Ω)*C(f); e.g. if capacitor is 47uf, resistor is 500KΩ, T=1.1*0.000047*500000=25.85sec. Size: 52*16mm/2.04*0.62" Working Principle: 1. Power on the module (12V or 5V) and relay is energized immediately. N.O. terminal is connected to COM terminal. 2. Relay is dis-energized after 0 to 25 seconds. N.C. terminal is connected to COM terminal. 3. Relay keeps dis-energized until there is an external trigger . 4. If there is always trigger , relay will keep energized until trigger disappears, then dis-energized after 0 to 25 seconds. Now N.C. terminal is connected to COM terminal. Package Includes: 1 x Timer Relay Module
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For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
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Reviews
*****
Verified Buyer
5
Item was exactly what I needed & wanted, however wiring it up per the instructions (or like the review with a video) did not work. The VCC/GND terminals are triggering the relay, not the SVCC/SG terminals as the instructions specify. There is also zero delay regardless of what value the potentiometer is set to, so I sent it back and got a replacement, both of which were the “old” style (it is 2/6/2023) and the replacement does not work either. The NE555 and the opticoupler appear to be correctly placed & connected into the circuit design, and I even verified the potentiometers were functioning properly, but there is a flaw somewhere in the circuit design interrupting the delay process that I could not track down (without removing components from the board). Very disappointed because the item showed great promise & the reviewer with a video showed exactly what I was after. After two DOA products I am looking elsewhere, and if you use Google Translate you can read the Chinese print on the boards (which confirmed they were not working correctly)
