The Elmdene TRS range of power supplies is specifically designed for access control applications requiring remote control of the power output. A common use is powering magnetic door retainers, where the output can be switched off by a signal from the fire panel during a fire alarm activation.
The TRS PSU offers multiple input options to enable fail-safe operation, including detection of a normally closed contact opening or the removal of a 24V DC signal, fully compliant with BS 7273.
Three remote control input options are available:
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 for mains presence and output fuse failure. The units feature energy-efficient switch-mode technology and a universal mains supply input of 90–264V AC.
Key Features:
Efficient switch-mode operation
Wide input voltage range
Remote control of output with multiple options
LED diagnostic indicators (inside enclosure)
Mains transient protection
Fail-safe operation
Optional screen printing