Power Supplies

Haes offers a comprehensive range of approved, battery backup power supplies, designed for fire alarm use but suitable for many other applications.

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  • The Haes 1.5A, 3.0A and 5.0A Power Supply Units are approved to EN54-4 by the British Standards Institute and can be used for any fire alarm system installation.

    • High efficiency switched mode power supplies
    • Compact 1.5A, 3.0A & 5.0A versions
    • Fully compliant to EN54-4
    • Power & fault indication
    • Wide AC voltage input on the 3.0A & 5.0A versions
  • The STX range of 10A switch mode power supplies has been specifically designed for EN54 compliant fire systems.

    • Cost effective switch mode technology
    • Intelligent battery charging and monitoring
    • Fully compliant to EN54-4
    • Deep discharge protection
    • Remote fault signalling


  • 2 sizes of cabinet for the storage of batteries. The small cabinet can house up to 2 x 18Ah batteries and the large cabinet has capacity for up to 2 x 65Ah batteries.

    Cabinets are robust steel enclosures with lockable hinged doors.

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