EDWARDS EST SIGA SD Intelligent Duct Smoke Detector

Intelligent Addressable Duct Smoke Detector

Agency Approvals

    • UL Listed
    • ULC Listed
    • CSFM Listed

    • Less than 2″ deep for easy installation and applications where space is tight
    • 32 to 120 °F (0 to 50 °C) operating range with 100 ft/min. to 4,000 ft/min air velocity rating assures reliability under harsh environmental conditions
    • Status LEDs remain visible through clear assembly cover
    • Cover monitor switch for added security
    • Standard sampling tube spacing for easy drop-in migration from other detectors
    • Sampling tube can be installed with or without the cover in place and can be rotated in 45-degree increments to ensure proper alignment with duct airflow
    • 15.2 to 19.95 Vdc operation
    • Magnet-activated test switch
    • One Form C auxiliary alarm relay for controlling ancillary equipment (e.g., HVAC controls)
    • No special tools required for easy access to field connections
    • Environmental compensation with differential sensing for reliable, stable, and drift-free sensitivity
    • Wide 0.79% to 2.46% obscuration/ft. smoke sensitivity
    • Identification of dirty or defective detectors

Detector Specifications

Communication line voltage: Maximum 20 V peak-to-peak
Operating current:
Normal: 45 ìA
Alarm: 45 ìA
Inrush: 1 mA
Common alarm relay/auxiliary equipment: Unsupervised and power-limited Quantity: 1 Type: Form C Rating: 2.0 A at 30 VDC (resistive)
Air velocity: 100 to 4,000 ft./min
Air pressure differential: 0.005 to 1.00 inches of water
Smoke sensitivity range: 0.79 to 2.46%/ft. obscuration
Smoke detection method: Photoelectric (light scattering principle)
Alarm test response time: 5 seconds
Dimensions: 8.70 x 5.45 x 1.90 inches
Operating environment:
Temperature: 32 to 120 °F (0 to 50 °C)
Humidity: 0 to 93% RH, noncondensing
Wire size: 14 to 22 AWG wire
Detector address
01 to 64 (64 point control panel)
01 to 127 (127 point control panel)
Remote test-reset station, magnetic: SD-TRM
Remote test-reset station, keyed: SD-TRK
Test magnet: SD-MAG
Air velocity test kit: SD-VTK
Remote LED alarm indicator: R-LED

Test station specifications
Remote Test/Reset Stations provide alarm test, trouble indication, and reset capability from a remote location. They include a one-gang plate, momentary SPST switch, red alarm LED, and terminal block. Magnetically-operated models (TRM) or key-operated models (TRK) are available.

Compatible electrical boxes:
North American 1-gang box
Standard 4-in square box, 1-1/2 inches deep, with 1-gang cover
LED indicators: Alarm (red)
LED type: Clear lens
Wire size: 14 to 22 AWG
Resistance per wire: 10 Ohms, max.
Current requirements: See controller specifications
LED circuit ratings: Voltage: 3 Vdc, max. Current: 30 mA, max.
Switch ratings (SD-TRK): Voltage: 125 Vdc, max. Current: 4 A, max.
Switch ratings (SD-TRM): Voltage: 200 Vdc, max. Current: 0.5 A, max.
Operating environment:
Temperature: 32 to 120 °F (0 to 50 °C)
Humidity: 93% RH, noncondensing
Storage temperature-: 4 to 140 °F (-20 to 60 °C)


There are no reviews yet.

Be the first to review “EDWARDS EST SIGA SD Intelligent Duct Smoke Detector”

Your email address will not be published.

error: Content is protected !!
Scroll to Top