12V Adjustable Timer Relay Switch Module

Br 750.00

  • A 12V Adjustable Timer Relay Switch Module is a versatile electronic component that uses a 12-volt power source to control devices with a set time delay, built using NE555 timer chip, allowing for adjustable delays from seconds to hours to automatically turn loads (like lights, fans, pumps) on or off for automotive, DIY, or home automation projects, typically handling up to 10A loads via screw terminals.
  • Operates on 12V DC, ideal for cars, RVs, and other 12V systems.
  • Time is set using potentiometers or buttons, varying from short (seconds) to longer periods (minutes/hours).
  • Controls higher-power circuits (up to 10A) from a low-power trigger signal, protecting the control source.
  • Can be activated by a simple button press, a trigger signal from a microcontroller (like Arduino), or a power-on event.
  • Supports various modes, including delay-on (energizes after delay) and delay-off (de-energizes after delay).
  • The main chip: NE555
  • The delay time is adjustable (0 to 10 seconds)
  • Maximum Control Equipment power rating 2000W
  • Applications: Used for delayed car headlights, cooling fans, water pumps, LED strips, and automated tasks.
  • 12V power supply for relay, relay not immediately absorbed and relay outputs status are: disconnected normally open, normally closed and public driving; Wait until the delay 1-10 s (adjustable), the suction relay and, this time, the output status relay is: normally open and public driving, normally closed and public disconnected; While uninterruptible power supply module, this state will be maintained.
  • The delay time is adjustable, (0 to 10 seconds)
  • Increasing the capacitor C1 can increase the delay time
  • With input power indicator
  • With relay indicator
  • The AC 220 V / 10A can be controlled on the equipment. (Maximum control of equipment 2000 W)
  • with free wheel protection relay

The time delay formula: T = 1.1RC.

  • For example: a capacitor resistance 100 uf 100 K T = 1.1 * 100000 * 0.0001 = 11 seconds
How it Works (Typical Delay-Off)
  1. Power Up: The module receives 12V, and an indicator light turns on.
  2. Trigger: When the trigger (e.g., a button) is pressed, the load connected to the relay turns ON.
  3. Timing: The internal timer starts counting down.
  4. Shutoff: After the set time, the relay deactivates, cutting power to the load.

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