Murphy TTD

The Murphy TTD is a solid-state fault annunciator and shutdown control system designed to protect engines, compressors and their associated equipment. The TTD model will accept 48 sensor inputs from normally open and/or normally closed sensors. Each of the 48 inputs can be configured for “Shutdown” or “Alarm Only”. Any input can be locked out by one of the two Start-Run timers, or configured as Class C, ESD or Ignore. The annunciator provides for both closing of a fuel valve and grounding of an ignition after a time delay. 


  • Run Hours/Elapsed Time Meter 
  • Last 10 Shutdowns with associated run hours 
  • Last 4 Alarms with associated run hours 
  • Selectable RS232/RS485 serial communications 
  • Selectable baud rates 

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