Elmdene STX range 24V EN54-4 PSU`s

Date: 23rd June 2021
Categories: Fire products, Power supplies

STX range 24V EN54-4 PSU`s

The new STX range of switch mode power supplies has been specifically designed for EN54 compliant fire systems. 

Available in either 1A, 2A, 5A or 10A versions they are certified to EN54-4:1997, A1:2002 & A2:2006.

The units include intelligent battery charging using Elmdenes efficient EcoCharge technology, possess mains & battery monitoring with independent volt-free outputs and also feature battery deep discharge protection in the event of a prolonged mains failure.

The inclusion of LED indicators provides quick diagnostics of the status of the power supply, while a variety of enclosures offer the installer a choice of standby battery backup options.



  • 27.6V dc output
  • Cost effective switch mode technology
  • Energy efficient
  • More effiient in operation
  • Saves power reducing power bills
  • Longer life in the field
  • Less prone to failure
  • Intelligent battery charging and monitoring using Elmdenes EcoCharge technology
  • Deep Discharge Protection
  • Remote fault signalling
  • Full rated current to load plus additional current for battery charging
  • LED indication:
  • Mains status
  • Output fault
  • Battery fault
  • Charger fault
  • Volt-free fault output - EPS:
  • Mains fail
  • Volt-free fault output - PSU fault:
  • Battery fault
  • Charger fault
  • Loss of output
  • Mains transient protection
  • 10A version can charge up to 2 x 65Ah batteries housed in a separate enclosure (BATT-BOX-65)
  • 3 Year warranty
ELMDENE also have a Power Supply Selector, which can be found HERE




For all the information you need on the STX Range please


Technical information can be found




For information on price & availability please contact Security Supplies at

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