Loop Isolator Module

In loop type fire alarm system, it often occurs that partial short circuit of loop affects the whole system. AI-520 Loop Isolator can isolate the shorted circuit from the whole system to ensure normal operation of other parts and locate the isolated part.

The isolator is applicable to all kinds of loop fire alarm systems, suitable for Class A and Class B.

Operating Voltage 24VDC (16VDC~28VDC)
Standby Current ≤3mA
Action Current ≤15mA
Capacity Maximum 32 devices every two isolators
Indicator Yellow, flashes when polling, illuminates in action.
Ingress Protection Rating IP30
Operating Temperature 0°C～+49°C
Relative Humidity ≤95%, non condensing
Material and Color of Enclosure ABS, White (RAL 9016)
Dimension (L×W×H) 120mm×80mm×39mm (with base)
Weight About 175g (with base)
  • Polarity-sensitive external connections. Input and output can be used inversely without direction.
  • Delayed power-up to output end devices, avoids strong transient current when the load is heavy.
  • Plug-in structure.

Contact us about Loop Isolator Module:

This site uses some unobtrusive cookies to store information on your computer. By using our site you accept our Terms And Conditions and Privacy Policy. ×