Honeywell XF521A
Function: Dry Contact Monitor Module for conventional fire alarm systems.
Key Features:
Supervises dry-contact devices (e.g., door holders, sprinkler flow switches, HVAC shutdowns).
Input Voltage: 15–32 VDC (regulated).
Low Power: Standby current ≤1.5 mA; alarm current ≤6 mA.
Wiring Styles: Supports Class A (Style Z) or Class B (Style Y) supervision.
Compatibility:
Works with Notifier® fire panels (e.g., NFS2-640, AFP-1010/AFP-4000).
Certifications: UL 864, ULC, CE.
