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Advanced 1.5A, 3A or 5A Boxed Power Supply With Battery Charging


SKU: 18a3ff9ea93f Category: Brand:


The Advanced 1.5A, 3.0A and 5.0A power supply units can be used for any fire alarm system which specifies EN54-4 power supply equipment.

Suited for almost any application, the power supply unit/battery charger has been developed using the latest surface mount technology to provide a high efficiency switch mode power supply.

The power supply units are available in fully enclosed construction providing power and fault indication or alternatively in caged versions for mounting into existing enclosures of various sizes to suit different battery capacities.

PSE and charger or PSE only options on the 3.0A and 5.0A versions.

A Serial Link option is provided on the 3.0A and 5.0A versions. Allows reporting of PSE status and voltages / current measurements to compatible control panel / modules.


For any fire alarm system which specifies EN54-4 power supplies (e.g. BS5839 code of practice).

These power supply units can be used in any fire alarm installation requiring a 24Volt supply for operation.


  • A range of power supply equipment with power output options to suit most applications.
  • Universal AC input on the 3.0A and 5.0A versions.
  • High efficiency switched mode power supplies.
  • Compact 1.5A, 3.0A and 5.0A versions.


  • Model Numer
    • MXP-549 : 1.5A
    • MXP-550 : 3.0A
    • MXP-551 : 5.0A
  • Environment : Indoor, Dry (IP30)
  • Operating Temperature : -5°C to +40°C
  • Relative Humiditiy : 95%
  • Wire Guage (max.) :  2.5mm2
  • Input Supply (AC) : 220-240V AC, 47-63Hz, 0.5A
  • Output Voltage (DC) : Max 28.5V DC, Min 21V DV
  • Output Current (IMAXA=IMAXB)
    • 1.0A (MXP-549)
    • 2.0A (MXP-550)
    • 3.0A (MXP-551)
  • Charging Voltage : 27.4V @ 20C nominal, temperature compensated
  • Charging Current
    • 0.5mA (MXP-549)
    • 1.0A (MXP-550)
    • 2.0A (MXP-551)
  • Ripple : 200mV (1V p-p switching noise)
  • Fuse (AC Mains TB) : T3.15AH250V
  • Battery Size
    • 7Ah (MXP-549)
    • 7Ah-24Ah (MXP-550)
    • 7Ah-38Ah (MXP-551)
  • Battery Internal Resistance
    • 3.3ohm max (MXP-549)
    • 1.6ohm max (MXP-550)
    • 0.8ohm max (MXP-551)
  • Deep Discharge Cut-off : 19V
  • Fault Relay : 30V AC/DC, 1.0A
  • Standard (Harmonised) : EN54-4:1997 + A1:2002+A2:2006
  • External Indication :
    • Green: Power Indicator
    • Amber: Fault Indicator
  • On Board Indication : Mains Fail, Charger Fail, Battery Open Circuit, Battery Low Heart Beat


Additional information

Weight 10 kg

1.5A, 3.0A, 5.0A

Max Batteries

7Ah, 17Ah, 38Ah, 38AH