This versatile miniature electromagnetic relay switch combines compact design with reliable performance. Featuring compatibility with MY2NJ/3NJ series and a universal socket base, this relay offers flexible installation options while minimizing space requirements. The built-in LED indicator provides clear operational status monitoring, eliminating guesswork during troubleshooting. Engineered with epoxy encapsulation, the relay maintains stable performance and proper insulation in various applications. Supporting multiple voltage options from 6V to 220V AC/DC, this intermediate relay switch is ideal for low-power contact load applications. The HH52P/HH53P/HH54P series delivers consistent electromagnetic switching capability, making it suitable for general-purpose industrial control systems, automation equipment, and electrical circuit applications. Its robust construction and practical features make it an essential component for projects requiring reliable electromagnetic switching in a space-efficient format.