Von Duprin PS902-4RL-FA Base Power Supply, 4 Relay Board Integrated Logic for Controlling Security Interlocks, 2A@12/24 VDC Field Selectable, Auto Operators and Time Delays, Plug-In Relay to Provide An Interface With Fire Alarm or Other Emergency Over

Von Duprin PS902-4RL-FA power supply unit delivers reliable control for security interlock systems with its integrated 4-relay logic board. Features field-selectable 2A output at 12/24 VDC, programmable auto-operators, and adjustable time delays for precise access management. The modular plug-in relay design enables seamless integration with fire alarm systems and emergency override protocols, making it an essential component for comprehensive door control infrastructure.

• PS902: 2A @ 12/24 VDC Field Selectable
• 4RL: 4 relay distribution board with logic is field configurable for time delay function, auto operator, and security interlock.
• FA: The emergency interface relay integrates with the fire alarm and cuts power in an emergency.