Bosch D263THS Photoelectric Smoke/Heat Detector with Sounder, 135F

  • MPN: D263THS
  • JMAC ID: 200016345
$80.25
JMAC_ID:
200016345
df_manual_boost:
1.75
Please Note: In order to keep our prices low, we have a minimum order requirement of $99
The Bosch D263THS two-wire photoelectric smoke detector uses an infrared (IR) LED light source and a silicon photodiode to measure light in a chamber. A fine screen covers the chamber to deter insects and to reduce dust accumulation and nuisance alarms.

During a fire, smoke particles reflect light onto the photodiode. When the photodiode measurements exceed the alarm threshold, the D263TH signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector.

The D263THS is equipped with a 135F (57C) heat sensor and sounder.

UPC: 782695023150
Also known as: DS-D263THS

Technical Specifications:
  • Voltage (stand-by): 8.5 VDC to 33 VDC
  • RMS Ripple (maximum): 25% of DC input
  • Power-up Time: 22 sec maximum
  • Current Draw (trouble): 0.1 mA maximum
  • Current Draw (start-up): 0.12 mA
  • Current Draw (standby): 0.080 mA at 12 V, 0.1 mA maximum
  • Current Draw (alarm): Determined by control panel
  • Auxiliary Relay Contacts: Form C 1 A, 120 VAC/30 VDC at 1 A, 30 W maximum
  • Material: High impact, fire retardant ABS plastic
  • Dimensions (Diameter x H): 5 in. x 2 in. (12.7 cm x 5.1 cm)


For more information about the Bosch Security D263THS, please contact us.
  • Trim Plate TP280 for retrofit and remodeling purposes
  • Two‑wire photoelectric smoke detector with a 135°F (57°C) heat sensor and a sounder
  • 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

2 Reviews

  • 5
    BOSCH-D263THS

    Posted by 175189 on Sep 13th 2021

  • 5
    BOSCH-D263THS

    Posted by 122186 on Jan 13th 2018

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