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Bosch Security and Safety Systems North America

D341 Family four‑wire duct smoke detector housings

Duct detector housing, 4-wire 24/120V

Commercial Product No.: D341 | Product No.: 4.998.113.250
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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/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/C/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
Relative humidity 0 to 95%, non-condensing
Temperature, operating +32°F to +120°F (0°C to +49°C) For UL Listed requirements, the operating temperature is +32°F to +100°F (0°C to + 37.8°C)
Package Dimensions (LxWxH) 19.6 in. x 7.6 in. x 8 in. (49.8 cm x 19.2 cm x 20.2 cm)
Product Dimensions (LxWxH) 15.5 in. x 4.25 in. x 6.5 in. (39.5 cm x 11 cm x 16.5 cm)
Material High‑impact fire‑retardant polymer plastic

Parts included with this product

Quantity Component
1 D341 Duct Detector Housing
1 Exhaust tube
1 Cover gasket
2 Tube clamps with four screws
2 Foam gaskets
2 Air filters
1 Drilling template
1 Hardware pack
1 Literature pack

Title Type Language
Title
CSFM
Type
PDF
Language
Title
HKFSD
Type
PDF
Language
en-US 
Title
UL
Type
PDF
Language
en-US 
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