Home > Shop Brands > Bosch Security >

  Bosch DS-D290 Four-wire Detector Base 24 Volt DC
Bosch DS-D290 Four-wire Detector Base 24 Volt DC


Our Price : $23.10

Product Code: DS-D290


Use the D290 Detector Base where the specifications call for a 24 VDC, four-wire photoelectric smoke detector. When using the D290, a single pair of wires is run for the initiating circuit and another pair is run for the power. The power circuit connects to the power supply of the control panel or an auxiliary UL Listed power supply. A D275 Power Supervision Module must be installed after the last detector base on each power circuit to properly supervise the circuit voltage.


Environmental Considerations:
-Temperature (operating): +32F to +100F (0C to +38C)

Mechanical Properties:
-Color: Bone white
-Dimensions (diameter x D): 5.9 in. x 1 in. (15.1 cm x 2.5 cm)

-Alarm: Two Form C relays with contacts rated for 2 A at 30 VDC, 1 A at 125 VAC for resistive loads

Power Requirements:
-Current (alarm): 43 mA
-Current (standby): 0.035 mA to 0.055 mA; depends on detector head
-Voltage (operating): 17.7 VDC to 30 VDC
  • 24 VDC, four-wire circuit compatibility
  • Dual Form C relays
  • Low profile construction
  • Easy to install and service
  • Molded in UL Listed white ABS plastic

Share your knowledge of this product with other customers... Be the first to write a review

Browse for more products in the same category as this item:

Shop Brands > Bosch Security

Enter your email for a chance to WIN $100 Amex Gift Card.

Please Enter Your Email Address

*One entry per household please