This versatile DPDT (Double Pole Double Throw) electromagnetic relay switch combines functionality with reliable performance. The compact design features a transparent dust cover that protects internal components while allowing visual monitoring through the built-in LED indicator. Compatible with multiple voltage options including AC 110V/220V and DC 12V/24V coil voltages, this relay switch offers excellent flexibility for various electrical applications. The included socket base ensures secure wiring connections and simplified installation, while the micro mini form factor makes it ideal for projects with limited space. The MY4P/HH54P/MY4NJ relay's DPDT configuration provides multiple switching options, making it suitable for industrial control systems, automation equipment, and general electrical switching applications. The clear housing allows for easy visual inspection of the relay's status, while the robust construction ensures reliable operation in demanding environments. Perfect for both professional installations and DIY projects requiring dependable switching solutions.