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Elmdene TRS1 24V DC 1 Amp Door Retainer Power Supply

£43.30 (inc VAT: £51.96)

Low Stock

SKU: TRS1 Category: Brand:


The new Elmdene TRS range of power supplies has been specifically designed for access control applications that require remote control of the power supply output. A typical example being where a TRS power supply unit is used to power magnetic door retainers; utilizing a signal from the fire panel in order to switch off the output to the doors in the event of a fire alarm activation.

The TRS PSU has a range of input options which includes the detection of a normally closed contact going open and also removal of a 24V dc signal to provide a fully fail-safe operation mode (BS 7273 Compliant).

The three control input options for remote control of the output are as follows:

  • Removal of an external 24V dc supply (BS 7273 Compliant)
  • Opening of a normally closed volt-free contact
  • Closing of a normally open volt-free contact

LED status indicators provide quick diagnostics showing the presence of a mains input and output fuse failure.

The products use energy-efficient switch mode technology and have a universal mains supply input (90—264V ac).


  • Efficient switch mode operation
  • Wide input voltage range
  • Remote control of output
  • Choice of control options
  • LED indication (within enclosure)
  • Mains transient protection
  • Fail-safe operation
  • Screen printing available
  • 3-year warranty


  • Output : 24V dc nominal
  • Load Output : 1.0 A
  • Mains Supply : 90-264V ac at 50-60Hz
  • Environment : -10°C to 40°C
  • Note : Not suitable for use with standby batteries


Additional information

Weight 5 kg