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Elmdene STX 24V DC STX Power Supply in C Enclosure


SKU: STX-C Category: Brand:


This STX PSU in C enclosure is a 1, 2 or 5A PSU certified to EN54-4:1997, A1:2002 & A2:2006.

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

The units include intelligent battery charging using Elmdene’s efficient EcoCharge technology, possess mains and 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 off er the installer a choice of standby battery backup options



  • 27.6V power supply with choice of 1, 2 or 5A output
  • Enclosure fits up to 2 x 7Ah 12V batteries
  • Cost effective switch mode technology
  • Energy efficient:
    • More efficient in operation
    • Saves power reducing power bills
    • Longer life in the field
    • Less prone to failure
  • Intelligent battery charging and monitoring using
  • Elmdene’s EcoCharge technology
  • Deep Discharge Protection
  • Remote fault signalling
  • Full rated current to load plus additional current for battery charging
  • 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-BLACK)
  • Lifetime warranty


  • Output : 27.6 V dc
  • Mains Input : 93-264 V ac
  • Operating Temperature : -5°C to 49°C at 95% RH
  • LED Indication : Mains status & faults


Additional information

Weight 5 kg

1A, 2A, 5A