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Bosch Security and Safety Systems North America

D342 Family four‑wire duct smoke detector housings

Duct detector kit, 4-wire 24/220/240V

Commercial Product No.: D342P | Product No.: 4.998.137.960
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Expected delivery:28/11/2017

Key Specifications

Voltage, operating 20 VDC to 29 VDC, 24 VAC, 220 VAC, or 240 VAC
RMS ripple, maximum 25 percent of DC input
Power-up time 22 sec maximum
Alarm Form A Normally Open (NO and C) contacts 0.5 A at 24 VDC and 24 VAC, 0.1 A at 120 VAC
Auxiliary Two Form C Normally Open and Normally Closed (NO and C and NC) contacts 10 A at 24 VDC, 24 VAC, 120 VAC, or 240 VAC
Trouble Form “A” Normally Open (NO/C) contacts 0.5 A at 24 VDC, 24 VAC, 0.1 A at 120 VAC
Condition 24 VDC, 24 VAC, 120 VAC, 230 VAC
Alarm 65 mA, 200 mA, 110 mA, 30 mA
Standby 15 mA, 85 mA, 100 mA, 25 mA
Trouble 15 mA, 85 mA, 100 mA, 25 mA
Condition 24 VDC, 24 VAC, 120 VAC, 230 VAC
Alarm 15 mA, 0 mA, 0 mA, 0 mA
Standby 10 mA, 0 mA, 0 mA, 0 mA
Trouble 10 mA, 0 mA, 0 mA, 0 mA
Alarm and Remote Coil (ON) 150 mA, 150 mA, 25 mA, 20 mA
RMS Ripple (maximum): 25% of DC input
Voltage (input): Two-wire: 8.5 VDC to 33 VDC Four-wire: 10 VDC to 30 VDC
Current (alarm) Two-wire: depends on control panel which must limit the alarm current to 100 mA maximum Four-wire: depends on detector base, refer to pertinent base specifications
Current (standby) Two-wire: 0.08 mA at 12 VDC, 0.09 mA at 24 VDC Four-wire: 24 mA at 12 VDC or 24 VDC
Relative humidity 0 to 95%, non-condensing

Parts included with this product

Quantity Component
1 D342 Duct Detector Housing
1 D285DH Photoelectric Duct Smoke Detector Head
1 D344‑1.5 Sampling Tube

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