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Silent Knight SK-4

Four Zone Conventional Fire Alarm Control Panel, Four Style B, Support for synchronization, ADA compliant strobes, Selectable for System Sensor, Alarm verification


Honeywell Silent Knight SK-4 Four Zone Conventional Fire Alarm Control Panel


The SK-4 and SK-4E (SK-4/E) are four zone conventional fire alarm control panels (FACPs) that bring the latest in microprocessor technology to conventional fire controls. The SK-4 is a 120 VAC FACP and the SK-4E is a 240 VAC FACP. These FACPs provide reliable fire signaling protection for small- to medium-sized commercial, industrial, and institutional buildings.



  • Four Style B (Class B) initiating device circuits (IDCs)
  • Two Style Y (Class B) notification appliance circuit (NAC)
  • Optional module converts all IDCs and NACs to Class A (PN SK-CAC4)
  • Support for synchronization of standard ANSI audible signals and
  • ADA compliant strobes per NFPA 72
  • Selectable for System Sensor, Wheelock, and Gentex protocols
  • Selective silence feature allows manual silence of horns while strobes continue to flash on the same NAC
  • Program for combination tamper supervisory monitor and waterflow alarm on one zone     
  • Silent or audible walk test operation mode
  • Alarm verification selectable per zone
  • Program each zone for supervisory or fire with separate red and yellow LEDs
  • Disable switches provided per zone
  • Program NACS for: Silence inhibit, Auto silence, Strobe synchronization, Temporal or steady signal, Silenceable or nonsilenceable, Disable
  • Form C alarm, trouble, and supervisory relays
  • 3A total usable current
  • 6A total usable current with optional second transformer (PN SK-TRM24 or SK-TRM24E)
  • Optional dress panel (PN SK-DP2/4)

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