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Bosch D263

Bosch D263 Smoke Detector - 2 Wire photoelectric smoke detector

Full specifications (PDF)

The D263 Series Detector models use 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 detector signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector.

General Information

  • Product Type: Smoke Detector
  • Brand Name: Bosch
  • Manufacturer: The Bosch Group
  • Product Model: D263
  • Product Name: D263 Smoke Detector

Technical Information

  • Sensing Technology: Photoelectric

Physical Characteristics

  • Height: 2"


  • Additional Information:
    • Two Wire
    • Designed for commercial or residential use
    • Removable terminal block to simplify wiring connections
    • Cable connection point for voltmeter sensitivity test
    • Trim Plate for retrofit and remodeling purposes


  • Status Indicators:
    • LED
    • Alarm

Power Description

  • Input Voltage Range: 12 V DC to 24 V DC

Full specifications (PDF)

Brand Bosch
Model D263 Smoke Detector

The Bosch D263 is also known as BOS-D263 .