Bosch D290 Four-Wire Detector Base, 24VDC 4-wire, 24V

Use the D290 Detector Base where the specifications call for a 24 VDC, fourwire photoelectric smoke detector. When using the detector base, 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.

UPC: 782695017814
Also known as: DS-D290, BOS-D290

Technical Specifications: Alarm: Two Form C relays with contacts rated for 2 A at 30 VDC, 1 A at 125 VAC for resistive loads Dimensions (diameter x D): 5.9 in. x 1 in. (15.1 cm x 2.5 cm) Color: Bone white Temperature (operating): +32°F to +100°F (0°C to +38°C) Voltage (operating): 17.7 VDC to 30 VDC Current (standby): 0.035 mA to 0.055 mA; depends on detector head Current (alarm): 43 mA

For more information about the Bosch Security D290, please contact us.