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Bosch FLM-420/4-CON Conventional Interface Module, 4-Wire LSN (Surface -S, DIN Rail -D)
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Bosch FLM-420/4-CON Conventional Interface Module, 4-Wire LSN (Surface -S, DIN Rail -D)

FLM-420/4-CON-S and -DConventional zone module4-wire LSN2 linesCPR and VdS

A module that connects conventional detectors to Bosch LSN fire panels through a 4-wire LSN supply with external power, in a surface-mount housing or a DIN rail type.

  • Two primary lines for 2-wire or 4-wire conventional detectors, as two stubs or one loop
  • Monitors the lines for alarms, short circuits and wire breaks
  • Detector parameters can be programmed for each stub
  • Classic mode, set with rotary switches, for classic LSN fire panels
  • Two integrated isolators; output voltage 23.5 to 30 V DC
  • Bosch lists CPR, VdS, CMIM and MOE certificates

Standards and approvals: CMIM, CPR, MOE, VdS

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Download the official Bosch catalogue (PDF, 9.2 MB)

Specifications

Specifications
SpecificationFLM-420/4-CON-SFLM-420/4-CON-D
Weight (g)390150
Operating temperature (°C)-20 to 55-20 to 55
Storage temperature (°C)-25 to 80-25 to 80
Output voltage (VDC)23.5 to 3023.5 to 30
Input voltage (VDC)15 to 3315 to 33
Dimensions (H x W x D) (mm)126 x 126 x 71110 x 110 x 48
Operating relative humidity, non-condensing (%)0 to 950 to 95
LSN current consumption (mA)8.58.5
LSN operating voltage (VDC)15 to 3315 to 33
ColorWhiteWhite
Color (RAL)RAL 9003 Signal whiteRAL 9002 Gray white
LED colorRedRed
MaterialTrim ring: Polycarbonate/ABSTrim ring: Polycarbonate/ABS

Specifications as published by Bosch. Please confirm the exact model with us before ordering.

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