D4120 | System Sensor | Gas & Specialty Sensors
Smoke Detector 4-Wire Photoelectric Duct
Brand:System Sensor
MPN:D4120
SKU:D4120
product specifications
Application
Transportation, Warehouse, Power Plant, Submarine, Aircraft, Industrial, Commercial
Mount
Duct
Output
Relay
Display
No
Output Type
Relay
product series specifications
Supply Voltage: 24 VAC @ 65 mA (standby & alarm), 20-29 VDC @ 21 mA (standby & alarm), 120 VAC @ 20 mA (standby & alarm)
Frequency: 50/60 Hz
Relay Contacts:
Alarm (SPST): 2.0A @ 30 VDC (resistive)
Aux (DPDT): 10A @ 250 VAC (resistive), 1/2 HP @ 240 VAC, 1/4 HP @ 120 VAC
Supervisory (SPDT): 2.0A @ 30 VDC (resistive) 2.0A @ 125 VAC (resistive)
Alarm Response Time: 15 seconds
Reset Voltages: 3.0 VDC minimum, 2.0 VAC minimum, 10 VAC minimum, 3.0 VDC minimum 2.0 VAC minimum 10 VAC minimum
Air Velocity: 100 to 4000 ft/min (0.5 to 20.32 m/sec)
Warm Up Time: 35 seconds maximum
Reset Time: Using RTS45:1 0.03 to 0.3 seconds powering down: 0.6 seconds maximum
Operating Temperature: -4° to 158°F (-20° to 70°C)
Operating Humidity: 0% to 95% non-condensing
Enclosure Rating: D4120: NEMA 1, D4120W: NEMA 4
Dimensions: 14.4"L x 5"W x 2.5"D (37 x 12.7 x 6.4 cm)
Weight: D4120: 3.2 lb (1.45 Kg), D4120W: 3.3 lb (1.5 Kg)
Approvals: UL File #S911, FM, CSFM
Warranty: 3 years
product series features
- Photoelectric, integrated low-flow technology
- NEMA 4 models for outdoor mounting
- Versatile mounting options: square or rectangular configuration
- Plug-in sensor offers superb false alarm immunity and the latest sensor technology
- 2:1 sensor-to-power capability allows one power board to monitor both supply and return smoke sensors
- Patented sampling tube installs from front or back of the detector with no tools required
- Increased wiring space with a newly added 3/4-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
more information & related documents
Series Description
The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints. Because the detector mounts to round or rectangular ductwork, it is indispensable for Building Automation Systems, BAS, and HVAC applications. This duct detector unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4 degrees F to 158 degrees F, and a humidity range of 0 to 95 percent (non-condensing). A plug-in duct sensor head offers improved false alarm immunity and simple installation, testing, and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance.
Kele Description
SMOKE DETECTOR 4-WIRE PHOTOELECTRIC DUCT
Manufacturer
System Sensor
Related Documents
D4120 - DUCTSD Spec Comparison 
