Micro adjustable delay relay trigger delay switch 5V-30V USB powered timer control module

5V-30V wide voltage trigger relay delay module timer flow delay switch module Highlights: You can adjust the time through the potentiometer, to meet your needs to use MicroUSB 5.0V power input most of the time, very easy to use 5-30V ultra-wide voltage power supply, there are External trigger and on-board button two trigger modes, with relay pull-in indicator light, strong anti-interference ability, the relay will not be damaged under various disturbances, suitable for industrial control. 1. Anti-theft alarm delay, establish sound and light switch light control. 2. The delay opening device installed on the vehicle can prevent the board equipment from being burned due to excessive current when the car is ignited. 3. In the case of needing to start, avoid multiple devices starting the burning device with excessive current at the same time. Module features: 1. Working voltage: any voltage between 5-30V wide voltage, two power supply ports 2 for MicroUSB and welding terminals. Working mode: After supplying power to the module, the output terminal status of the module is: normally open (not) disconnected from the common terminal (COM), and normally closed (NC) connected to the common terminal (COM). Give a low pulse signal to the external trigger terminal (TRIG), or at the moment when the trigger button is touched, the relay will act and the working indicator will be on. At this time, the state of the relay output terminal is normally open (no), and the common terminal (COM) is running. Closed (NC) and Common (COM) will be open. After 0-24 seconds (this time can be adjusted according to your needs), the relay is disconnected and the relay returns to the state before triggering. 3. The time can be adjusted by the potentiometer, the default is 0-24 seconds. If it takes longer, you can replace with a larger capacitor (C2) or the pot itself. Delay time formula: T = 1.1RC. For example: capacitor 22uf resistance 1M, then T=1.1*0.000022*1000000=24.2 seconds. 4. With pull-in indicator relay.5. The module can control: after 10A 250VAC (AC), the load is below 10A 30VDC (DC). 6. with freewheeling relay protection.7. The signal end of the module is designed with a pull-up and filter circuit, which has strong anti-interference ability and is suitable for industrial control. Many manufacturers have added optocouplers for isolation, but the module is not isolated from the trigger signal ground, and the anti-interference effect is not good. After testing, it is found that the stability of the trigger terminal must be improved to withstand interference. The relay will not be damaged whether in an EMI environment or when the module is turned on or off. 8. Size: 5.4*1.9*1.8cm (L*W*H)