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System Sensor® D4120W
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System Sensor® InnovairFlex 4-Wire Duct Smoke Detector

  • Brand Name: System Sensor®
  • IPN: D4120W
  • MPN: D4120W
  • UPC: 783863034541
  • Login for Availability $locale.get('product.label.hazmat')

The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing and hose directed water. D4120W duct smoke detector features a pivoting housing that fits various applications: both square and rectangular footprints mount to round or rectangular ductwork. The new design provides the same form, fit, and wiring terminations as the standard InnovairFlex unit. Superior test and operational features added to the standard model are also available in this watertight unit. As the only watertight duct smoke detector on the market, D4120W provides unsurpassed environmental protection while simplifying installation, testing, and maintenance. This InnovairFlex duct smoke detector can be customized to meet local codes and specifications without additional wiring. The new InnovairFlex product line is compatible with all previous Innovair models, including remote test accessories.

System Sensor® InnovairFlex Duct Smoke Detector, Photoelectric Detection Method, 24/120 VAC, 20 to 29 VDC, 0 to 95% RH Non-Condensing Humidity Rating, 65 mA at 24 VDC, 135 mA RMS at 24 VAC 60 Hz, 35 mA RMS at 120 VAC 60 Hz Alarm Current, White, -4 to 158 deg F Operating, -22 to 158 deg F Storage, 5 in Width, 14.38 in Height, 2-1/2 in Depth

Alarm Current       65 mA at 24 VDC, 135 mA RMS at 24 VAC 60 Hz, 35 mA RMS at 120 VAC 60 Hz
Depth       2-1/2 in
Detection Method       Photoelectric
Height       14.38 in
Humidity Rating       0 to 95% RH Non-Condensing
Temperature Rating       -4 to 158 deg F Operating, -22 to 158 deg F Storage
Width       5 in
Power Source       24/120 VAC, 20 to 29 VDC
Color       White
  • Four-wire photoelectric, integrated low-flow technology
  • NEMA Type 4 UL listed for non-hazardous indoor and outdoor applications
  • UV resistant, UL listed housing and cover material
  • Versatile mounting options-square or rectangular configuration
  • Plug-in sensor offers superb false alarm immunity and the latest sensor technology
  • Patented sampling tube installs from front or back of the detector with no tools required
  • Increased wiring space with a newly added 3/4 in conduit knockout
  • One-easy-access test/reset button and improved LED status
  • Patented interconnect feature for multi-fan shutdown
  • New high contrast terminal designations
  • Built-in short circuit protection from operator wiring errors
  • Field selectable settings for configuring the detector
  • Two-DPDT form-C relay contacts
  • Backward compatibility with existing invar products including remote accessories
  • Air velocity rating from 100-4000 ft/min