Hush-Pro BS5839-6 Grade C Fire Alarm Controller

  • Provides fully monitored BS 5839-6 Grade C compliant fire detection, alarm, silencing and test facilities in flats & apartments.
  • Puts residents in control of their own fire systems by allowing them to test and silence devices whilst standing at floor level.
  • Easily interfaced to:
    (1) EN54 certified detectors & alarms – providing commercial grade protection in domestic dwellings.
    (2) Cooker shut-off relays – to turn off the supply in the event of a fire.
    (3) Sprinkler monitoring units – to flag if a sprinkler system is isolated.
    (4) Remote overdoor indicators – to warn people in corridors where a fire may be taking place.
    (5) Communal fire systems – to report fires & faults outside the dwelling (see Networked Hush-Pro Systems tab below for details).
  • Lifts the typical level of protection from Grade D (interlinked mains/battery alarms) to Grade C.
  • Requires additional HPPSU and Hush-Pro field devices.

For availability details email

Hush-Pro Domestic Fire Alarm System Brochure – DML0548500 4.97 MB Download
Why Hush-Pro? – DML0551550 199.45 KB Download
Hush-Pro Grade C LD1 Domestic Fire Alarm System Consultants Specification – Microsoft Word Document 32.42 KB Download
Hush-Pro Wiring Schematics – DML0580000 4.55 MB Download
Hush-Pro Controller Installation Instructions – DFU0005080 1,009.56 KB Download
Hush-Pro Users Guide – DFU0005085 220.75 KB Download
EU Declaration of Conformity – Hush-Pro Controller (DoC) 199.89 KB Download
UKCA Declaration of Conformity – Hush-Pro Controller (DoC) 157.16 KB Download
Networked Hush-Pro Systems

To unleash the full power of Hush-Pro you can connect multiple stand-alone Hush-Pro systems to a communal C-TEC XFP or ZFP CAST protocol addressable fire alarm system.

  • Use the Cause & Effect programming of the communal XFP or ZFP CAST fire panel to set-up building management approved phased evacuation scenarios that don’t put peoples’ lives at risk.
  • Program keyswitches at the communal CAST fire panel that allow the emergency services to evacuate groups of dwellings and/or floors of dwellings without having to climb staircases.
  • Report wiring faults, Fire Level 1 triggers, Fire Level 2 triggers and more to off-site monitoring centres to ensure potential dangers are reported in real time.
Hush-Pro Operation & Functions
  • When the Hush-Pro system is in its normal state, power is applied to its detection and alarm circuit which is continually monitored for open and short circuit faults.
  • When a fire detector within a dwelling triggers, the system’s Alarm sounders and VADs will activate.
  • Depending on the system’s configuration, a remote overdoor indicator outside the room and/or cooker shut-off relays may also activate.
  • If multiple Hush-Pro systems are connected to a compatible communal fire system, automatic phased evacuation, manual fire brigade evacuation and the off-site reporting of faults and fires may also be possible (see Networked HUSH2 Systems tab above for more details).

Some of the operational options available on Hush-Pro are:-

    Allows a hushed period of two minutes to be applied (and extended if required) for the management of false alarms
    Allows a hushed/isolation period of fifteen minutes to be applied (and extended if required) to protect against inadvertent activation.
    Allows the functionality of the system’s detectors and alarm devices to be electronically tested with relevant faults indicated via the controller’s fault status LED.
Summary of Hush-Pro features
  • Fully compliant with the latest revision of BS 5839-6 – upgrades the level of protection offered in a dwelling from the minimum Grade D requirement to Grade C.
  • Provides individual dwellings with an extendable two-minute silence facility and 15-minute isolate facility.
  • Mains powered via a separate double gang PSU with onboard 72 hour standby supply
  • Long-life replaceable Lithium Ion rechargeable battery (up to 12 years’ life)
  • Wiring between all detection and alarm devices is fully open and short circuit monitored
  • Silence, Test and Fault Status indicators & controls can be viewed or operated at floor level and are therefore suitable for use by the elderly and disabled.
  • Four indicator LEDs – green Supply LED, yellow Fault LED, red Alarm LED and yellow Hushed LED.
  • Auxilliary interface connections to remote systems, e.g. communal fire alarm systems
  • Manufactured in the UK by one of the world’s leading commercial fire system providers.

For a full list of features and benefits please download our Hush-Pro Brochure.

Why use a Grade C system?
Grade C systems require fault monitoring of the power supply. Grade D system power supplies can be completely unmonitored
Grade C systems require fault monitoring of the interconnecting wiring. There is no monitoring of the wiring required in Grade D systems
Grade C systems provide a readily accessible method of silencing and testing the system whilst standing at floor level Grade D systems require additional equipment to provide silencing facilities at floor level.
BIM/CAD Drawings



HP508 with back box BIM (RFA)




HPPSU with back box BIM (RFA)


Hush-Pro Field Device Approval Certificates

See individual product pages for more information

Video overview of our Hush-Pro solution