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Fire Lite Alarms MS-4

Four Zone Fire Alarm Control Panel, 4 style B, Built-in stroble, 24VDC, Up to 5.0 amps of NAC power


Fire Lite Alarms MS-4  Four Zone Fire Alarm Control Panel


The Fire Lite MS-4 and MS-4E Fire Alarm Control Panels (FACPs) bring the latest in microprocessor technology to con­ventional fire controls. The MS-4 is compatible with the ismoke detectors from System Sensor, with drift compensation, maintenance alert, and freeze warning. Automatic synchroniza­tion of audio/visual devices with three selections for manufac­turer protocol. The Notification Appliance Circuit (NAC) protocol can silence audible devices while strobes continue to flash, using a single pair of wires.  The MS-4 is compatible with conventional input devices such as two- and four-wire smoke detectors, pull stations, waterflow devices, tamper switches and other normally-open contact devices. Refer to the Fire Lite Device Compatibility Document for a complete list of compatible devices.





  •  Four Style B (Class B) Initiating Device Circuits (IDCs).
  • Two Style Y (Class B) NACs.
  • Optional module that converts all four IDCs and two NACs to Class A operation.
  • 24 VDC.
  • i Technolog
  • NAC synchronization
  • NACs programmable
  • Silent or audible Walk Test operation mode commanded from the front keypad, with automatic return-to-normal after one hour of inactivity.
  • Each zone may be programmed for supervisory or fire; each zone has separate red and yellow LEDs.
  • Zone 4 is programmable for combination of tamper supervi­sory monitoring and waterflow alarm.
  • Form-C Alarm, Trouble, and Supervisory relays.
  • 3.0 A total usable current.
  • 6.0 A total usable current available with optional second transformer.

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