D340 Family two‑wire duct smoke detector housings

D340 Family two‑wire duct smoke detector housings
Duct detector housing, 2-wire
CTN D340
Product No. 4.998.113.252

D340 Family two‑wire duct smoke detector housings
Duct detector kit, 2-wire
CTN D340P
Product No. 4.998.137.956
Current (alarm) | Dependent on the control panel that must limit the alarm current to 100 mA maximum. |
Current (standby) | 0.12 mA maximum |
Maximum RMS Ripple | 25% of DC input |
Power-up time | 22 sec maximum |
Voltage, operating | 8.5 VDC to 32 VDC from two-wire loop. Optional 24 VDC/VAC from control panel or external supply. |
Loop power | External power |
8.5 V to 32 V | 24 V |
Alarm | < 0.120 mA, 5 mA |
Standby | < 0.170 mA, 0.030 mA |
Trouble | Current limit to 100 mA, 170 mA in remote test |
Loop power | 8.5 V to 32 V |
Alarm | < 0.140 mA |
Standby | < 0.170 mA |
Trouble | Current limit to 100 mA |
Loop power | 8.5 V to 32 V |
Alarm | < 0.130 mA |
Standby | < 0.150 mA |
Trouble | Current limit to 100 mA |
Air velocity | 300 ft./min to 4000 ft./min (1.5 m/s to 20.3 m/s) |
Relative humidity | 0% to 95%, non-condensing |

Duct smoke head, 2-/4-wire, 12/24V
CTN D285DH
Product No. 4.998.140.344
Detects the large smoke particles which typically result from wood, paper, and fabric combustion

Remote indicator plate
CTN D344-RL
Product No. 4.998.140.354
Used with the D340 Series Duct Smoke Detector Housings

Remote test/indicator plate, 24V
CTN D344-RT
Product No. F.01U.024.868
Use with a D340/D341/D342 or D343 (legacy product) Duct smoke housing or D296/D297 Long‑range beam smoke detector.

Duct tube filters, 20pcs
CTN D344-TF
Product No. 4.998.137.961
Replaceable filters for duct detector sampling tubes, available in packages of 20

Relay module, form C, 10A 12/24V
CTN PAM-4
Product No. F.01U.135.043
One set of 10.0 A, Form C contacts that can be energized across a range from 9 VDC to 40 VDC