System Sensor D4240 4-Wire Duct Smoke Detector 120VAC
System Sensor D4240 4-Wire Duct Smoke Detector 120VAC
Product images are provided for reference and may not represent the exact model, configuration, or included components.

Overview

SKU: D4240
UPC: 783863042362
Condition: New
Availability: Usually Ships in 2-3 Weeks
Warranty Manufacturer Warranty
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System Sensor

System Sensor D4240 4-Wire Duct Smoke Detector 120VAC

4-wire duct smoke detector for supply/return air HVAC monitoring

$327.19 $205.99 SAVE $121

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System Sensor D4240 4-Wire Duct Smoke Detector 120VAC

$327.19
$205.99
Add to Cart

Overview

SKU: D4240
UPC: 783863042362
Condition: New
Availability: Usually Ships in 2-3 Weeks
Warranty Manufacturer Warranty

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Description

System Sensor D4240 4-Wire Duct Smoke Detector

Overview

The System Sensor D4240 is a 4-wire duct smoke detector designed for HVAC ductwork applications. Operating on 120VAC with supervised 4-wire communication, this detector integrates into fire alarm and building control systems requiring real-time smoke detection in supply or return air ducts. Compact rectangular housing measures 14.38 inches in length, making it suitable for standard duct installations.

Compatibility

The 4-wire supervised architecture ensures compatibility with conventional and addressable fire alarm control panels supporting hardwired smoke detector circuits. Installation requires 120VAC power and supervised signal lines for alarm, trouble, and reset functions. Ideal for commercial HVAC systems, data centers, hospitals, and industrial facilities where ductwork monitoring is mandated by code.

Physical Specifications

  • Length: 14.38 inches
  • Width: 5 inches
  • Depth: 2.5 inches
  • Weight: 2.5 lbs
  • Voltage: 120VAC
  • Communication: 4-wire supervised
Expert Analysis
Specifications
Product Type: Duct smoke detector
Communication: 4-wire supervised
Voltage: 120VAC
Dimensions: (Rectangular Dimensions) 14.38 in (37 cm) Length; 5 in (12.74 cm) Width; 2.5 in (6.36 cm) Depth
Weight: 2.5 lbs (1.14 kg)
Type: Duct smoke detector
Package Contents: current draw from attached detectors or EOL relay.; **Does not include reverse polarity current draw from attached detectors.; 100 Series™ Plug-In Smoke Detectors and Bases
Analytics: Smoke Detection; Fire Detection
Mount Type: Wall; Corner
Warranty: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Temp: D4240: –4° to 158° F (–20° to 70° C)
weight: 2.5
Mounting: Red Model No. White Model No. Description
Operating System: Y2 Used to monitor the open position of an 1 in. to 12 in. 10 A @ 125/250 VAC; —
Brand: System Sensor
MPN: D4240
Power: 120V AC
Color: White
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