D263 Photoelectric Smoke and Smoke and Heat Detectors

D263 Photoelectric Smoke and Smoke and Heat Detectors
  • 12 V or 24 V input
  • Designed for commercial or residential use
  • Two-wire application
  • Light-emitting diodes (LEDs) indicate the status of the chamber, power, and alarm
  • Removable terminal block to simplify wiring connections
  • Cable connection point for voltmeter sensitivity test
  • Trim Plate TP280 for retrofit and remodeling purposes
  • Details
    Radio Frequency Interference (RFI) Immunity: No alarm on critical frequencies in the range of 26 MHz to 950 MHz.
    Relative Humidity: Up to 93%, non-condensing
    Temperature (operating): +32°F to +120°F (0°C to +40°C)
    Dimensions (Diameter x H): 5 in. x 2 in. (12.7 cm x 5.1 cm)
    Material: High impact, fire retardant ABS plastic
    Auxiliary Form C: 1 A, 120 VAC/30 VDC at 1 A, 30 W maximum
    Current Draw (alarm): Determined by control panel
    Current Draw (standby): 0.080 mA at 12 V, 0.1 mA maximum
    Current Draw (start-up): 0.12 mA
    Current Draw (trouble): 0.1 mA maximum
    Power-up Time: 22 sec maximum
    RMS Ripple (maximum): 25% of DC input
    Voltage (stand-by): 8.5 VDC to 33 VDC


  • Certificates (5)
    Title Type Language
    UL PDF
  • Documents (3)

Product variants

D263 Smoke detector, 2-wire

Two‑wire photoelectric smoke detector.

Commercial Type No.: D263
Product No.: 4.998.125.857

D263TH Smoke detector, fixed heat 135°F 2-wire

Two‑wire photoelectric smoke detector with a 135°F (57°C) heat sensor.

Commercial Type No.: D263TH
Product No.: 4.998.140.336



DT-2 Detector removal/testing tool

DT-2 Detector removal/testing tool

Use the DT‑2 to remove, replace, or test the detector head

Commercial Type No.: DT-2
Product No.: 4.998.151.481