Honeywell SK-ISO

Fire Alarm Addressable Modules

Honeywell SK-ISO: Intelligent Fault Isolator Module, Panel controlled status, UL Listed, Standard 4 inch, Isolates short circuits, SEMS screws
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Honeywell SK-Zone  
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Honeywell SK-Minimon  
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Silent Knight SK-Monitor  
Silent Knight SK-Control  
Silent Knight SK-Relay  
Silent Knight SK-Monitor-2  
Silent Knight SK-Relay-6  
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Silent Knight SK-MON-10  
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Honeywell SK-ISO Intelligent Fault Isolator Module



The SK-ISO is an addressable line isolator module for use with Silent Knight IntelliKnight series fire alarm control panels (FACPs). The SK-ISO acts as an automatic switch that opens when the line voltage on the signaling line circuit (SLC) loop drops below four volts. Isolator modules should be spaced between groups of sensors or modules in a loop to protect the rest of the loop. If a short occurs between any two isolators, then both isolators immediately switch to an open circuit state and isolate the devices between them. The remaining units on the SLC loop continue to fully operate. No more than 25 devices are recommended for each group.





  • Panel controlled status LED that flashes green in normal state and is solid red in alarm
  • Isolates short circuits on an SLC loop
  • Protects the modules on the SLC loop so other devices continue to operate
  • Standard 4 inch electrical box mounting
  • SEMS screws for easy wiring
  • UL Listed
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