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Silent Knight SK-ISO Addressable Isolator Module
Silent Knight SK-ISO Addressable Isolator Module

Silent Knight SK-ISO Addressable Isolator Module

Manufacturer:Silent Knight
Manufacturer Part#:SK-ISO
Our Part#:SK-ISO
Stock Status: Call for Availability
Retail Price:$118.34
Your Savings:$35.50(30%)
Your Price:$82.84


Silent Knight







Feature 5



  • 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

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.


The SK-ISO mounts directly into a 4" square electrical box. The box must have a minimum depth of 2-1/8".


The SK-ISO is compatible with the following IntelliKnight FACPs:

  • 5700
  • 5808
  • 5820XL

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