Bosch D255 Fixed Temperature 190F Heat Detector Head

Use the D255 Fixed Temperature Heat Detectors for indoor confined areas where a fire increases air temperature slowly and where there is a substantial increase in air temperature before the fire breaks confinement. Furnace rooms, closets, bathrooms, and other confined areas are appropriate applications for fixed temperature detectors.

Use the D255 (response-rated at 190F [88C]) in areas where the ambient temperatures do not exceed 150F (67C). These detectors operate in 12 and 24 VDC detection circuits using a variety of Bosch detector bases. A latching steady-on LED is available when these heads are used with the D253 24 VDC base or the D271S 12 VDC base.


Also known as: BOS-D255

Technical Specifications: Voltage (operating): 12 VDC or 24 VDC Response Time: <120 sec Dimensions (diameter x D): 6 in. x 2 in. (15.2 cm x 5 cm) Color: Bone white Temperature (ambient): +32°F to +150°F (0°C to +66°C)

For more information about the Bosch Security D255, please contact us.