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Home --> Fire Alarm Systems
  • General
  • Feature
  • Specification
The Morley-IAS loop isolator module is used on the Morley-IAS intelligent fire alarm control panels to protect the system against wire-to-wire short circuits on the analogue addressable loop wiring. The fault isolator modules should be placed between groups of sensors on the loop wiring to protect the loop if a short circuit fault occurs. If a short circuit fault occurs, the two isolators located either side of the short circuit fault will automatically sense the voltage drop, open their switches and remove the devices from the rest of the loop. If the line voltage then rises above a fixed threshold, indicating that the short circuit fault is removed, then the isolator module will automatically restore the power to the isolated group of devices.
DIN rail mounting option Surface mounting option Plug in connectors Tri-colour LED status indication Address selector switches visible in 2 planes LED status visible in 2 planes Approved to GEA GEI 1-082 and CEA GEI 1-084
mechanical Dimensions (mm) 93 x 94 x 23 (H x W x D) Weight 62g Operating Temperature -20 ºC to +60 ºC Humidity 0 to 95% maximum non-condensing electrical Operating voltage 15 to 30 Vdc Standby current 200μA at 24 Vdc maximum Fault detection delay 100 to 400 mS On resistance 0.065Ù at 15 Vdc maximum Terminal Wire 2.5 mm2 maximum