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🔶 NE555 DC12V Adjustable Time Delay Relay Timer Switch Module Shield 0–10s — Delay Relay for Automation Projects

📦 Overview

When connected to a 12V power supply, the relay operates on a fixed 1–10 second cycle (adjustable). Upon power-up, the relay is immediately energised, causing the normally open (NO) contact to close with the common (COM) terminal and the normally closed (NC) contact to open. After the preset delay of 1–10 seconds, the relay de-energises, returning the contacts to their default state (NO open, NC connected to COM).

✅ Key Benefits

User-adjustable delay (approx. 0–10 s) via onboard potentiometer
Powered by 12 V DC — suitable for automotive and general DC systems
Voltage-free relay output supporting both Normally Open (NO) and Normally Closed (NC)
Compact, panel-mountable relay shield for hobbyists and control systems
Wide compatibility with Arduino, microcontrollers, and general electrical use

⚙️ Technical Specifications

Timer IC: NE555
Operating Voltage: DC 12 V
Delay Range: Adjustable ~0–10 seconds
Output: Relay with NO and NC contacts
Maximum Load: Up to ~10 A (AC 250 V / DC 30 V typical) :contentReference[oaicite:2]{index=2}
Relay Switching: One channel
Signal Input: DC trigger
Condition: New :contentReference[oaicite:3]{index=3}

🔌 Wiring & Operation Guide

12 V DC Supply → VCC
GND           → GND

Relay output (NO/COM/NC):
  - COM (Common) → Load supply or signal path
  - NO  (Normally Open) → Switched output after delay
  - NC  (Normally Closed) → Default closed output before delay

Potentiometer → Adjust timer delay (0–10 seconds approx)

When 12 V DC is applied, the timer begins counting. After the set delay the relay changes state from its initial contact to the opposite (NC→open / NO→closed). Use the relay contacts to control lights, motors, alarms, or other devices within the relay load limits.

💡 Possible Uses

Delay-on controls for lighting and LED circuits
Motor soft start or delayed engagement
Security alarm trigger delays
Automatic shutoff sequences for pumps or fans
Arduino, Raspberry Pi or microcontroller projects requiring time-delay actuation
Automotive delay circuits (12 V) such as interior or external lighting

⚠️ Safety & Best Practices

Ensure that your load does not exceed the relay ratings (10 A @ AC220 V or DC30 V approx).
Use proper insulation and mounting if controlling mains or high-voltage circuits.
Always disconnect power before adjusting wiring or potentiometer.
For microcontroller projects, use the module’s relay to switch power to the load, not the control logic pins directly.

📦 Package Includes

1 × NE555 DC12V Adjustable Time Delay Relay Timer Switch Module

NE555 DC12V Adjustable Time Delay Relay Timer Switch Module Shield 0–10s for Arduino Raspberry Pi Projects

🔍 Keywords

NE555 timer relay, DC12V delay relay module, adjustable timer switch, electronic delay switch, Arduino delay relay, timer module 0–10s, automation control, microcontroller delay trigger.

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