System Sensor D4120W 4-Wire Photoelectric Duct Smoke Detector, Watertight

• NEMA Type 4 UL listed for non-hazardous indoor and
• outdoor applications
• UV Resistant, UL listed housing and cover material
• 4-Wire Photoelectric, integrated low-flow technology
• Air velocity rating from 100 ft/min to 4,000 ft/min
• (0.5 m/s to 20.32 m/sec)
• Versatile mounting options: square or rectangular configuration
• Plug-in sensor offers superb false alarm immunity and the latest sensor technology
• Broad ranges for operating temperature (4F to 158F) and humidity (0% to 95% non-condensing)
• Patented sampling tube installs from front or back of the detector with no tools required
• Increased wiring space with a newly added -inch 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
• 24 VAC/DC or 120VAC
• Backward compatibility with existing Innovair products, including remote accessories

• Rectangular Dimensions: 14.38 in (37 cm) Length; 5 in (12.74 cm) Width; 2.5 in (6.36 cm) Depth
• Square Dimensions: 7.75 in (19.7 cm) Length; 9 in (22.9 cm) Width; 2.5 in (6.35 cm) Depth
• Weight: 2.5 lbs (1.14 kg)
• Air Duct Velocity: 100 to 4000 ft/min (0.5 to 20.32 m/sec)
• NEMA Enclosure Rating: Type 4 Watertight Indoor/Outdoor
• Power Supply Voltage: 120 VAC, 50-60 Hz
• Reset Voltage: 10 VAC min
• Reset time: (with RTS151) .03 to 0.3 sec.
• Reset time: (by power down) 0.6 sec. max.
• Power up time: 35 sec. max.
• Alarm response time: 15 sec.
• Max. standby current: 20 mA RMS @ 120VAC 60 Hz
• Max. alarm current: 35 mA RMS @ 120VAC 60 Hz
• Alarm initiation contacts: (SPST) 2.0A @ 30 VDC (resistive)
• Alarm auxiliary contacts: (DPDT) HP @ 120 VAC