Eaton BiWire Flexi 4 Zone Relay with FRE / FPE Outputs (BWOB4Z)

The Eaton BWOB4Z is the 4-zone option board for the Eaton BiWire Flexi conventional/two-wire fire alarm panel. It is a daughter card that fits inside the panel and adds outputs to Fire Alarm Routing Equipment (FRE), Fire Protection Equipment (FPE) and a relay for each zone.

Eaton lists it as "4 zone relays + FRE/FPE" in the BiWire Flexi range, alongside the 4-zone BiWire Flexi panel (EFBW4ZFLEXI).

Key features

• FRE output for phone diallers and/or building management systems, complying with EN 54-2 clause 7.9.1 (outputs to fire alarm routing equipment)
• FPE output to drive door release mechanisms, fire screens, sprinkler systems and gas release systems, complying with EN 54-2 clause 7.10.1 (Type A)
• FRE and FPE outputs are monitored for short-circuit and open-circuit faults
• 4 volt-free zonal relays that follow the fire condition of the matching zone circuit
• Zonal relays can be set to C/NO or C/NC with jumpers
• Panel reports FRE and FPE faults and disablements

Technical specifications

• Part number: BWOB4Z
• Zonal relays: 4, volt-free, unmonitored
• FRE and FPE outputs: monitored; switch to 24 V when active
• End-of-line: 6K8 resistor fitted at the external equipment (or at the board terminal if an output is not used)
• Panel setting: SW12-1 DIP switch set to "Fitted" when the option board is installed
• Compatible with: Eaton BiWire Flexi panels