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  • Automatic aerosol fire extinguishing device | 300g | 5-24VDC / 170°C activation | 3m³

    Code: ES-SUS-QRR0.3GW/S-CFLC
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    300 g aerosol fire suppression module designed for local fire protection in enclosed technical spaces up to 3 m³. The module can be activated automatically by a thermal detection line (~170 ±10 °C) or electrically by a 5–24 V DC, >350 mA signal. The cylindrical Ø76 × 195 mm module is mounted to a wall or floor using brackets. Operating temperature: –50 °C to +90 °C. 

  • Aerosol Fire Extinguishing Module | 300g | 3m³ | 5–24V DC | Thermal and Electrical Activation

    Aerosol Fire Extinguishing Module | 300g | up to 3m³ | 5–24V DC | Thermal and Electrical Activation

    Aerosol fire extinguishing module – a device intended for local fire protection in enclosed electrical, automation and other technical spaces with a protected volume of up to 3m³. The cylindrical module is mounted with brackets to a wall or floor surface and can be activated in two ways: automatically via a thermal activation line or electrically via a 5–24V DC activation circuit. The thermal activation line triggers when directly exposed to flame or when the temperature reaches approximately 170±10°C. For electrical activation, the module is used together with a fire detector and controller – when the detector detects a fire, the controller sends an activation signal to the extinguishing module. The electrical activation voltage must be 5–24V DC, and the activation current must be greater than 350mA. The device contains 300g of aerosol-generating chemical agent, while the extinguishing density is 100g/m³. 

    Local fire protection for enclosed technical spaces up to 3m³

    The 300g version is intended for larger electrical and automation cabinets and other enclosed technical spaces. The module is mounted with brackets to a wall or floor surface. 

    300g
    Amount of chemical agent
    3m³
    Protected volume
    5–24V DC
    Electrical activation voltage
    >350mA
    Activation current

    Operating principle and main functions

    Function Parameter Operating principle
    Automatic thermal activation 170±10°C When the thermal activation line is directly exposed to flame or its temperature reaches approximately 170±10°C, the module is activated automatically and starts the extinguishing process.
    Electrical activation 5–24V DC, >350mA The module is used together with a fire detector and controller. When the detector detects a fire, the controller sends a 5–24V DC activation signal with a current greater than 350mA.
    Aerosol generation 300g When the device is activated, the chemical extinguishing agent generates aerosol, which is dispersed throughout the protected enclosed space.
    Extinguishing density 100g/m³ The amount of extinguishing agent is selected according to the volume of the protected enclosed space.
    Protected volume Up to 3m³ Designed for local fire protection of larger enclosed electrical, automation and other technical spaces.
    Installation Bracket-mounted to a wall or floor The cylindrical module is mounted with brackets to a wall or floor surface.

    How does automatic thermal activation work?

    The thermal activation line operates independently

    The thermal line is designed for automatic activation of the extinguishing module. When directly exposed to flame or when the temperature at the activation point reaches approximately 170±10°C, the module activates automatically. This activation method does not require a signal from an external fire detector or controller.

    1. The extinguishing module is fixed with brackets to the wall of the protected cabinet or enclosure.
    2. The thermal activation line is positioned within the protected area according to the manufacturer's installation requirements.
    3. Under normal conditions, the module remains passive.
    4. In the event of a fire, flame or high temperature affects the thermal activation line.
    5. When the line temperature reaches approximately 170±10°C or it is directly exposed to flame, the aerosol generator is activated automatically.
    6. The generated extinguishing aerosol is dispersed throughout the protected enclosed space and suppresses the combustion process.

    How does 5–24V DC electrical activation work?

    Operation together with a fire detector and controller

    For electrical activation, the extinguishing module is used together with a fire detector and controller. When the detector identifies signs of fire, the signal is transmitted to the controller, which activates the aerosol fire extinguishing module. The activation voltage may range from 5V to 24V DC, while the activation current must be greater than 350mA.

    1. The fire detector monitors the protected technical space.
    2. When signs of fire are detected, the detector sends a signal to the controller.
    3. The controller processes the signal and sends a 5–24V DC activation command to the extinguishing module.
    4. The controller output must provide an activation current greater than 350mA.
    5. The extinguishing module is activated and begins generating extinguishing aerosol.
    6. The aerosol is dispersed throughout the protected enclosed space and suppresses the combustion process.
    Important: sufficient current is required for electrical activation

    For electrical activation, 5–24V DC voltage alone is not sufficient. The activation circuit must be capable of supplying more than 350mA. Before connecting the module, it is essential to verify that the controller output meets both requirements.

    Protected volume up to 3m³

    One 300g module is designed to protect a volume of up to 3m³ when the extinguishing density is 100g/m³. When selecting the device, the actual internal volume of the protected space, ventilation openings, leakage, component arrangement and other installation conditions must be evaluated.

    Bracket-mounted to a wall

    The module has a cylindrical housing with dimensions of Φ76x195mm. It is mounted with brackets to a wall or floor surface.

    Fire classes and applications

    Class Application
    A For fires involving solid combustible materials according to the declared application of the product.
    B For fires involving flammable liquids according to the product specification.
    C For gas fires according to the product application range.
    E Application class intended for the protection of electrical equipment fires.

    Technical specification

    Product type Aerosol fire extinguishing module
    Installation method Mounted with brackets to a wall or floor surface
    Amount of extinguishing chemical agent 300g
    Protected volume Up to 3m³
    Extinguishing density 100g/m³
    Activation methods Automatic thermal and electrical
    Thermal activation principle When the thermal line is exposed to flame or the temperature reaches approximately 170±10°C
    Thermal activation temperature 170±10°C
    Electrical activation voltage 5–24V DC
    Electrical activation current >350mA
    Electrical activation principle Used together with a fire detector and controller; when the detector detects a fire, the controller sends a 5–24V DC activation signal with a current greater than 350mA
    Operating temperature -50°C ~ +90°C
    Ambient relative humidity ≤95% RH
    Dimensions Φ76x195mm
    Product weight 1250g
    Application classes A, B, C, E
    Oxidising agents Sr(NO3)2, KNO3
    Oxidising agent content 70%
    Service life 10 years
    Applicable standard EN 15276-1:2019
    Certificates / conformity markings CE, TÜV, RoHS, ISO 9001, CMA, CNAS

    Application in electrical and automation cabinets

    For larger enclosed technical spaces

    The 300g aerosol module is designed for local fire protection in enclosed technical spaces up to 3m³. Its cylindrical construction and bracket mounting to a wall allow the module to be used in larger electrical distribution, automation, variable frequency drive and other technical cabinets, provided that their volume and construction comply with the product's conditions of use.

    Advantages / benefits

    • Protected volume up to 3m³ is suitable for larger enclosed electrical and automation spaces.
    • 300g of extinguishing agent and an extinguishing density of 100g/m³.
    • Two activation methods – automatic thermal and electrical.
    • Automatic thermal activation allows the module to activate when the thermal line is exposed to flame or reaches approximately 170±10°C.
    • 5–24V DC electrical activation allows the module to be integrated into fire detection and control systems.
    • Activation current >350mA defines the requirement for the controller activation output.
    • Cylindrical Φ76x195mm housing is designed for stationary installation inside a technical cabinet.
    • Wide operating temperature range from -50°C to +90°C.
    • Ambient relative humidity up to 95% RH allows use under various technical environmental conditions.
    • 10-year service life is designed for long-term stationary protection.

    Disadvantages / limitations

    • Protected volume limit: one module is designed for an enclosed space of up to 3m³, therefore larger volumes require a separate engineering assessment.
    • Additional equipment required for electrical activation: the module must be used together with a suitable fire detector and controller.
    • Sufficient output current is required: 5–24V DC voltage alone is not sufficient – the controller activation output must be capable of supplying more than 350mA.
    • Mechanical fastening is required: due to the 1250g weight, the module must be securely mounted with suitable brackets to a structurally suitable panel wall.
    • Single-use operating principle: after actual activation, the aerosol generator must be replaced with a new one.
    • Importance of enclosure tightness: ventilation openings, leakage and intensive air exchange may affect the aerosol concentration in the protected space.
    • Not a whole-room fire suppression system: the product is intended for local fire protection of an enclosed technical space.

    What is it suitable for? (Applications)

    • Electrical distribution cabinets
    • Automation and PLC control cabinets
    • Variable frequency drive and motor control cabinets
    • Power supply and control equipment cabinets
    • Communication and telecommunications equipment cabinets
    • Systems with a fire detector and 5–24V DC control circuit
    • Systems requiring automatic thermal activation
    • Local fire protection of contactors, relays, circuit breakers and other electrical equipment
    • Other enclosed technical spaces up to 3m³

    What is it not suitable for?

    • Spaces with a volume exceeding 3m³ without an additional engineering solution
    • Open or heavily ventilated spaces
    • Use as a manual portable fire extinguisher
    • Electrical activation from a controller whose output cannot supply more than 350mA
    • Electrical activation using a voltage higher than 24V DC
    • Installation on a structure that cannot securely support the 1250g module
    • Automatic fire suppression of an entire room where a separately engineered fire suppression system is required

    Practical example

    The internal protected volume of a larger automation cabinet is approximately 2.25m³. The cabinet contains circuit breakers, contactors, variable frequency drives, power supplies and control electronics. The 300g aerosol fire extinguishing module is mounted with brackets to a suitable inner wall of the cabinet. The thermal activation line is positioned within the protected area, allowing the module to activate automatically if the line is directly exposed to flame or its temperature reaches approximately 170±10°C. In addition, the device can be connected to a fire detector and controller. For electrical activation, the controller must send a 5–24V DC signal and provide an activation current greater than 350mA.

    Frequently asked questions (FAQ)

    What volume is this module designed to protect?

    One 300g module is designed to protect an enclosed technical space of up to 3m³ when the extinguishing density is 100g/m³.

    How many activation methods does this module have?

    The module can be activated automatically by the thermal activation line or electrically through a 5–24V DC activation circuit.

    How does the thermal activation line work?

    When the thermal line is directly exposed to flame or its temperature reaches approximately 170±10°C, the extinguishing module activates automatically.

    Is a detector required for thermal activation?

    No. The thermal activation line can activate the module independently in response to flame or high temperature.

    How does electrical activation work?

    The module is used together with a fire detector and controller. When the detector detects a fire, the controller sends an electrical activation signal to the extinguishing module.

    What is the electrical activation voltage?

    The electrical activation voltage may range from 5V to 24V DC.

    What electrical activation current is required?

    The activation current must be greater than 350mA.

    Is any 24V controller output sufficient?

    No. Both the output voltage and current capability must be checked. The controller output must be within the 5–24V DC range and capable of supplying more than 350mA.

    How much extinguishing agent is inside the module?

    The module contains 300g of aerosol-generating chemical agent.

    What are the dimensions and weight of the module?

    The module dimensions are Φ76x195mm and the product weight is 1250g.

    What is the operating temperature?

    The operating ambient temperature range is from -50°C to +90°C.

    What is the maximum ambient relative humidity?

    The ambient relative humidity may be up to 95% RH.

    What is the service life?

    The product service life is 10 years when the manufacturer's installation, storage and operating conditions are followed.

    Can the module be reused after activation?

    No. The aerosol fire extinguishing generator is a single-use device and must be replaced with a new one after activation.

    Important fire safety and installation note

    The aerosol fire extinguishing module must be selected and installed according to the manufacturer's technical documentation, the actual volume of the protected space, ventilation openings, leakage, equipment arrangement, fire risk and applicable fire safety requirements. For electrical activation, the controller activation circuit must be 5–24V DC and capable of supplying more than 350mA. The 1250g module must be securely mounted with suitable brackets to a structurally suitable panel or cabinet wall. The thermal activation line must be positioned according to the manufacturer's installation instructions. The device must not be dismantled, mechanically damaged, heated or activated other than for its intended purpose. After activation, the product must be replaced with a new one.

    300g aerosol fire extinguishing module – a Φ76x195mm cylindrical device mounted with brackets to the wall of an electrical panel or technical cabinet and designed for local fire protection of enclosed technical spaces up to 3m³. The module can activate automatically when the thermal activation line is exposed to flame or reaches approximately 170±10°C, and it can also be electrically activated using a 5–24V DC signal with a current greater than 350mA.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
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