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Eaton Bi-Wire Flexi Fire Alarm Panel (Conventional or Bi-Wire Selectable Zones)


SKU: dad7139b944e Category: Brand:


BiWire Flexi combines two technologies to provide a truly versatile fire safety solution.

The panel can be configured to allow either two-wire or conventional devices to work on a zone. Each zone is individually configurable so a mixture of types can therefore be installed on the same system. This provides you with the exibility to utilise all the time-saving benefits of a two-wire system with the ability to use a wide range of conventional devices, where required.

Flexi relieves the pressure of system selection. It is the perfect solution for electrical installers and distributors as it takes complexity out of the decision when specifying a fire system. It can be wired to meet the requirements of a variety of applications and is well suited to extend an existing fire system.

It shares the same straightforward, intuitive interface as the BiWire Ultra and EFCV8Zone conventional panels, providing a proven solution for simple programming and maintenance.

The BiWire Flexi fire alarm system is certified to EN54 part2 and part 4 and is designed to meet the recommendations of BS5839.


  • Reduces stock-holding and enables the fire system to adapt to the demands of the customer or application
  • Simple to sell and specify, Flexi can be used in a wide variety of applications and is very simple to install
  • Save time, money and effort when undertaking system extensions and upgrades
  • Up-to-date with latest regulations

Key Features

  • Configure zone wiring to work as either a conventional or two-wire system
  • Available in 2, 4 and 8 zone variants
  • Allows the connection of an existing conventional system to a BiWire system
  • Compatible with two-wire and conventional EN 54-23 certi ed visual alarm devices (VADs)


Power Speci cation (2x MB512 batteries required. Batteries not included)

  • Input Voltage Range : 18.75-30.7V
  • Maximum Current Drawn From Battery : 2.7A

Zone Circuits

  • Number of Zones : 2, 4 or 8 Zones
  • Devices Per Zone
    • BiWire Mode: Max of 32 BiWire Detectors and Manual Call Points, total loading including BiWire sounders cannot exceed 200mA in alarm
    • Conventional Mode: Max 32 Conventional Detectors and Manual Call Points
    • Intrinsically Safe Conventional Mode: Max of 10 intrinsically Safe Detectors and Manual Call Point
  • Maximum Loading per Zone : 200mA
  • Standby Zone Voltage
    • Vmin 19V dc
    • Vmax 23V dc
  • Alarm Zone Voltage
    • Vmin 31V dc
    • Vmax 33V dc
  • Fuse Protection Per Zone : 250mA PTC
  • End of Line Termination
    • BiWire Zones = EOLM-3 Only
    • Standard Conventional Zones = EOLM-1 Only
    • Intrinsically Safe Zones = 6K8 resistor

Conventional Sounder Circuits

  • Number of Sounder Circuit
    • BiWire Flexi 2 & 4 zone panels have 2 conventional sounder circuits
    • BiWire Flexi 8 zone panel has no conventional sounder circuits if all zones are in BiWire mode
    • BiWire Flexi 8 zone panel has 2 conventional sounder circuits if up to 4 zones are in conventional mode
    • BiWire Flexi 8 zone panel has 4 conventional sounder circuits if 5 or more zones are in conventional mode
  • Maximum Loading Per Circuit : 500mA
  • Fuse Protection Per Circuit : 500mA PTC
  • End of Line Termination : 6K8 Resistor

Unmonitored Outputs

  • Fire, Fault, Interlink Relay
    • Type : Volt-Free, Single Pole Double Throw
    • Rating : 30V DC, 1A
    • Fuse : 500mA PTC
  • Auxiliary Output :
    • V : 18.15-30.7V
    • Imax : 50mA
    • Fuse : 50mA PTC

Unmonitored Inputs

  • Class Change :
    • Type
      • Open Circuit = Normal Panel Operation
      • Short Circuit = Activate All Sounders

Communications Ports

  • Repeater Port (use of this port is outside the scope of EN54)
    • Type : RS485
    • Nodes : 1


  • Operating Temperature : -5°C to +40°C
  • Relative Humidity : 93% +/-3% non-condensing
  • IP Rating : IP30


  • Weight (excluding batteries) : 2.25kg
  • Materials : PC ABS Front and Rear


  • Cable Access : 29 x 20mm drill positions – Slots for rear cable entry
  • Cable Type
    • Firetuf FT120 / FP200
    • Cable type 2 core 1.5mm, screened fire rated cable, 500m (Max per zone)


  • Standards : EN54 Part 2 CIE & Part 4 PSE, BS5839-pt1


Additional information

Weight 2.5 kg

2, 4, 8

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