12VDC Door Lock Solenoid Switch

The 12VDC Door Lock Solenoid Switch is a high-performance electromagnetic locking device used for automated doors, drawers, lockers, and security systems. It provides an instant locking/unlocking mechanism through a controlled electric signal, making it ideal for smart home, IoT, and Arduino-based security applications.

When 12V DC is applied, the solenoid retracts the metal latch to unlock; removing power locks it again — ensuring a fail-safe operation. Compact, efficient, and easy to integrate, it’s a popular choice among DIY electronics, automation projects, and industrial access control setups.

⚙️ Key Features

• 🔒 Electromagnetic Locking Mechanism – Provides reliable and secure lock/unlock action.

• ⚡ 12V DC Operation – Compatible with most power adapters and controllers.

• 🔩 High Durability Metal Construction – Ensures long operational life.

• 🔧 Easy Integration – Simple wiring for microcontrollers and access control circuits.

• 🔁 Reversible Operation – Can be used as normally locked or unlocked.

• 🔇 Silent and Smooth Performance – Minimal mechanical noise during operation.

• 🧰 Perfect for DIY Projects – Ideal for smart lockers, vending machines, and robotic systems.

📐 Technical Specifications

🧠 Working Principle

When 12V DC power is applied, an electromagnetic field activates the plunger, retracting it to unlock the mechanism. Once power is removed, a spring returns the latch to its locked state. This makes it ideal for controlled access applications like smart lockers, automated drawers, or IoT-based door control.

🧩 Applications

• 🏠 Smart Home Security Systems

• 🔐 Electronic Door Locks and Cabinets

• 🧳 Vending Machines & Drawers

• 🧠 Arduino & IoT Automation Projects

• 🏢 Access Control and RFID Systems

• 🚪 Remote Controlled or Timer-based Door Locks

⚠️ Precautions

• Use a regulated 12V DC Power Supply for stable operation.

• Avoid applying power for extended periods to prevent coil overheating.

• Do not force the plunger manually when powered off.

• Ensure proper mounting and alignment before energizing.

• Use driver circuits or relay modules when interfacing with Arduino or Raspberry Pi.

🧰 Recommended Accessories

• 🔌 Power Supply – Regulated 12V DC adapter.

• ⚙️ Relay Modules – For switching solenoid control.

• 💳 RFID Modules – For secure electronic access.

• 🔋 Arduino Boards – For automation and control.

▶️ YouTube Tutorial Video

🎥 Watch: How to Use 12V Solenoid Lock with Arduino & RFID Access System

📝 Product Summary

The 12VDC Door Lock Solenoid Switch is a compact, durable, and efficient locking module for DIY and professional automation. With easy integration into Arduino, RFID, and smart door systems, it’s ideal for building secure, automated locking mechanisms in homes, offices, and industrial setups.