Gromax Technologies Private Limited
Gromax Technologies Private Limited
Shakarpur Khas, New Delhi, Delhi

BOSCH Addressable Fire Alarm - EN54

BOSCH Fire Alarm - EN54 Certified

BOSCH FAH-0420 / FAP-0420 Smoke Detector

BOSCH FAH-0420 / FAP-0420 Smoke Detector
  • BOSCH FAH-0420 / FAP-0420 Smoke Detector
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Product Details:

ColorWhite, similar to RAL 9010, matt finish
Operating voltage15 V DC to 33 V DC
Thermal maximum part54 deg C / 69 deg C
WeightApprox. 80 g / Approx. 135 g
MaterialPlastic, ABS (Novodur)
Individual displayLED red
Current consumption0.55 mA
Alarm outputPer data word by two-wire signal line
Dimensions without base99.5 x 52 mm
Dimensions with base120 x 63.5 mm
Permissible operating temperature-10 deg C to +50 deg C
Permissible storage temperature-20 deg C to +50 deg C
Permissible relative humidity95% (non-condensing)
Permissible air speed20 m/s.

The 420 Series Automatic Fire Detectors offer a superb accuracy as well as detection speed and precision. The versions with dual-optical sensor (DO-detectors: FAP-DO420, FAP-DOT420, FAP-DOTC420) are able to detect lightest smoke (TF1 and TF9). These detectors provide all advantages of LSN improved version. The addressing of the detectors can be configured with the integrated turning switches.

  • Combination of optical, thermal and chemical sensors with intelligent evaluation electronics.
  • Earliest detection of lightest smoke (TF1 & TF9) with the double-optical smoke detectors featuring Dual-Ray technology
  • Detector properties adapted to cater for room usage
  • Drift compensation in optical and gas measurement section
  • Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators



Sensor technology and signal processing:

The individual sensors can be configured manually or timer-based via the LSN network. All sensor signals are analyzed continually by the internal evaluation electronics (Intelligent Signal Processing – ISP) and are linked with each other via an inbuilt microprocessor. The link between the sensors means that the combined detectors can also be used where light smoke, steam or dust must be expected during the course of normal operation.


Optical sensor (smoke sensor):

The optical sensor uses the scattered-light method. An LED transmits light to the measuring chamber, where it is absorbed by the labyrinth structure. In the event of a fire, smoke enters the measuring chamber and the smoke particles scatter the light from the LED. The amount of light hitting the photo diode is converted into a proportional electrical signal. The DO detectors use two optical sensors with different wavelength. The Dual Ray Technology works with an infrared and a blue LED, so that light smoke can be detected reliably (TF1 and TF9 detection).


Thermal sensor (temperature sensor):

A thermistor in a resistance network is used as a thermal sensor, from which an analog-digital converter measures the temperature-dependent voltage at regular intervals. Depending on the specified detector class, the temperature sensor triggers the alarm status when the maximum temperature of 54 °C or 69 °C is exceeded (thermal maximum), or if the temperature rises by a defined amount within a specified time (thermal differential).


Improved LSN features:

The 420 Series Fire Detectors offer all the features of the improved LSN technology:

  • Flexible network structures, including "T‐tapping" without additional elements
  • Up to 254 LSN improved elements per loop or stub line
  • Automatic or manual detector addressing selectable via rotary switch, in each case with or without auto- detection
  • Power supply for connected elements via LSN bus
  • Unscreened fire detection cable can be used
  • Cable length up to 3000 m (with LSN 1500 A)
  • Downwards compatibility to existing LSN systems and central units


Further performance characteristics:

The detector alarm indication takes the form of a red flashing LED that is easily visible 360°. It is possible to activate a remote external detector alarm display. The detector base no longer has to be directed due to the centralized position of the individual display. The integrated strain relief for interfloor cables prevents the removal of cables from the terminal after installation. The terminals for cable cross-sections up to 2.5 mm2 are very easily accessible. The detector bases have a mechanical removal lock (can be activated/deactivated). The detectors have a dust-repellent labyrinth and cap construction.


Additional Information:

  • Item Code: FAPFAH420
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BOSCH Address Fire Panel FPA-5000

BOSCH Address Fire Panel FPA-5000
  • BOSCH Address Fire Panel FPA-5000
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Product Details:

BrandBosch Security Systems
Product TypeFire alarm control panel
Width440 mm
Height638 mm
Depth149 mm

Thanks to the modular configuration, the innovative FPA‐5000 Modular Fire Panel easily adapts to local circumstances and regulations. Due to the different functional modules, country-specific characteristics are accommodated in the connection just as quickly as the respective alarm handling.

The fire panel is available with two different housings:
  • Housing for mounting directly on the wall
  • Frame installation housings which are fitted to the mounting frame and can be swiveled.


    With the aid of special mounting kits, the housings can be mounted in 482.6 mm (19") cabinets. All housings can be extended with various additional housings for all conceivable applications.



    • Modular configuration allowing for easy extension
    • Interconnection of up to 32 Panel Controllers, Remote Keypads, and OPC servers
    • Multiple CAN loop connection with high- performance Ethernet backbone and redundancy
    • Installation and auto-detection of functional modules by simply plugging them into the panel rail
    • Connection to BIS Building Integration System via OPC server



    Operation / processing of messages:

    The operation and the processing of all messages are easy and intuitive thanks to the ergonomically- designed control panel with its TFT touch‐screen offering a menu-driven handling and multi-color display. To that end, there are permanently located keys on the right, bottom, and upper edge of the display as well as variably located virtual keys in the touch-screen area.


    Modular Structure of the FPA‐5000 Modular Fire Panel:

    Due to its modular structure, the FPA‐5000 Modular Fire Panel provides complete flexibility and thus customized solutions for any application.



    The functional modules are autonomous, encapsulated units that can be inserted into any control panel slot using "plug-and-play" technology. Thus, the power supply and the data traffic to the control panel are indicated automatically without any additional settings. The module is automatically identified by the control panel and functions in the default operating.

    Wiring to external components is performed using compact connector/screw terminals. After a replacement, only the connectors need to be reinserted; extensive rewiring is no longer required. defined as network node or local node. Within a group, only panel conditions of the same group can be displayed. Regardless of the groups, network nodes allow for the display and handling of all panel conditions. Local nodes display the conditions of the related panel.


    Detection Points:

    The Address Cards activate detection points. The FPA‐5000 governs up to 4096 detection points. Each element and input which, after the programming, is able to set off an alarm requires a detection point. Inputs are considered as detection points if they are programmed accordingly in the FSP‐5000‐RPS Programming Software.


    The provided options according to EN 54‐2:1997/
    A1:2006 include:

    • Output to fire alarm devices
    • Connection conditions for the regional authorities and institutions (police, fire service) must be maintained.
    • It is preferable to use the loop formation owing to the greater security of loop lines compared with stub lines.
    • It is possible to combine LSN interface modules and LSN detectors on one loop or stub line.
    • For a mixed connection of LSN classic elements and LSN improved elements, a maximum of 127 elements are permitted.
    • Existing conventional detectors can be connected to a CZM 0004 A module. A CZM 0004 A module provides four DC primary lines (zones).

    Additional Information:

    • Item Code: FPA-5000
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