The AL400ULXPD4 is power supply solution designed for access control systems. This unit combines reliable power supply charger with the PD4 Power Distribution Module, all housed in sturdy BC400 enclosure. Engineered for professional security installations, this system efficiently delivers consistent power to multiple access control devices while providing the necessary voltage regulation and protection. The integrated PD4 module allows for organized distribution to various components of your security system, eliminating the need for multiple separate power supplies. Perfect for commercial buildings, secured facilities, and any installation requiring dependable power for access control hardware. This internal power supply ensures your security system remains operational even during power fluctuations, providing the reliability needed for critical access control applications.