Simplex 4009-9803

Simplex 4009-9803 4 Circuit NAC Add-On Style Y

NAC (Notification Appliance Circuit) power extender providing four additional Style Y (Class B) circuits to Simplex 4001 and 4002 series fire alarm control panels. Extends alarm notification capacity for large or multi-zone fire detection systems.

Key Features:

• Circuit Specifications: Four Style Y (Class B) supervised reverse-polarity circuits rated 2A @ 25 VRMS per circuit; 8A total DC signaling power available

• Power Distribution: UL-listed extender with integrated power supply; electrically supervised and protected against brown-out conditions and AC power loss

• System Integration: Connects as end-of-line device to dedicated notification appliance circuit from host panel; two-wire operation from host FACP

• Signal Monitoring: Monitors each output NAC for circuit troubles; EARTH fault detection and status reporting to host panel

• Configuration Options: Available with Style Y or Style Z circuit variants; supports configuration groups of four or eight circuits

• Battery Support: Includes integrated 18Ah battery charger (capacity up to 110Ah with optional battery cabinet 4009-9801)