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  Silent Knight SK-SD505DCTR Duct Detector with Relay Base

Silent Knight SK-SD505DCTR Duct Detector with Relay Base


Our Price : $204.27

Product Code: SK-SD505DCTR


The SD505-DUCTR Addressable duct smoke detector provides early detection of smoke and products of combustion present in air moving through an HVAC duct to prevent re-circulation of smoke into the air handling system. The SD505-DUCTR is a heavy duty metal housing with a pre-installed SD505-APS Analog Photo Electric Smoke Sensor and relay module. When smoke is detected in a duct, the unit communicates the condition to the IntelliKnight FACP. The built-in relay module, in turn, turns off fans, blowers, and other devices.The SD505-DUCTR requires IntelliKnight Version 6.0 and SD505-DTS-K Remote Test Switch. The SD505-DTS-K is a remote switch that is used with the SD505-DUCTR so you can remote test the Duct Detector. It also provides LED indication of the status of the SD505-DUCTR. The SD505-DTS-K uses the same key as the control panel.


Dimensions: 2-1/4" H x 9" L x 7-1/4" W
Weight: 3lbs
Operating Voltage: 24 VDC

Alarm Relay Contact rating:

10A @ 24 VDC;10A @ 115 VDC;
10A @ 240 VDC

Trouble Relay Contact Rating: 2.5A@ 30 VDC
Aux. Power Input Current: 20mA Standby, 62 mA Alarm
SLC Input Current: 0.5 mA
Max. SLS resistance: 50 Ohms
Operating Temp: 32F to 100F (0C to 37C)
Humidity: 10%-85% non-condensing
  • Two-wire connection to SLC
  • Detects and limits spread of smoke
  • LED alarm indication and
  • communication on sensor head
  • Rugged steel backbox with clear
  • plastic cover
  • Installation template included
  • No screens or filters to clean
  • SD505-APS Photoelectric Smoke
  • Detector pre-installed
  • 3 standard tube lengths
  • UL listed, complies with NFPA 72
  • and 101
  • CSFM listed
  • MEA Approved 429-92-E, Vol 9
  • FM Approved

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