Dycon DX24 1, 2 or 3 Amp Magnetic Fire Door Holder Power Supply


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    Dycon DX24 1, 2 or 3 Amp Magnetic Fire Door Holder Power Supply

    Dycon D240X and D241X Series units are 24Vdc switched-mode 1-3A power supplies, ideally suited for use with fire alarm door retainers, access control applications and general power applications.

    The D240X units have a normally closed (NC) volt-free output for remotely signalling the status and service ability of units. This output can be used to indicate problems either locally using or remotely via a suitable signalling device. The switched output of all these units is designed for highly inductive loads (magnetic door retainers and releases) eliminating the need for additional control relays and circuitry and eliminating the chance of an ‘electrical spike’ causing a door to remain closed or open, a frequent cause of personnel delays and expensive engineer call outs.

    Using Dycon’s unique protective technology, the range features intelligent and capacitive load switching surge protection and snubbing. All units are protected by Dycon’s unique intelligent electronic fuse technology with automatic reset to reduce system downtime.


    • 24V DC switched-mode power supply.
    • 1, 2 or 3 amp models available.


    • Power Supply Classification : Type A, Ungraded, Environmental Class 2
    • Voltage Input : 195Vac - 265Vac @ 50-60Hz
    • AC Input Fuse :
      • D2401 : 2A
      • D2402/12 : 2A
      • D2403/13 : 3A
    • Output Voltage with AC Power :
      • D2401/2/3 : Max. 28Vdc - 24Vdc nominal
      • D2412/3 : 27.4Vdc nominal
    • Output Ripple : < 100mV peak-to-peak @full rated output
    • AC Fault Will indicate : If voltage falls below 175Vac ± 25V
    • Maximum Output Current at Full Load
      • D2401 : 1A
      • D2402/12 : 2A
      • D2403/13 : 3A
      • D2405 : 5A
    • Fault Relay rating (D2401-5 only) : 60V @100mA, contact resistance of 16 ohms
    • Low-voltage Power Output Fault : <175Vac ± 25V
    • Automatic Output Reset Time : 10mS to 18s (depends on type and duration of fault)
    • Operating Temperature : -10°C to +50°C
    • Humidity : 95% non-condensing
    • PCB Size :
      • D2401/2/12/13 : 100 x 130 x 38mm
      • D2403 : 105 x 130 x 38mm
    • PCB Weight : 0.19kg
    • Housing Weight : 2kg


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