Bosch LSN Interface Modules Series 420 En Us FLM I8R1 S Commercial Brochure 1294652299

User Manual: Bosch en-us FLM-420-I8R1-S Octo-input interface module with relay

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LSN Interface Modules Series 420 | 1

LSN Interface Modules Series 420

FLM‑420/4‑CON

FLM‑420‑NAC

FLM‑420‑RHV

Interface type

Conventional Interface Module 4‑wire LSN

Signaling Device Interface
Module

Relay High Voltage Interface
Module

Function

Connecting conventional detectors to LSN fire panels

Connecting signaling devices

2 change-over contact relays
with feedback lines

4-wire

4-wire

2-wire

15 V DC to 33 V DC

15 V DC to 33 V DC

15 V DC to 33 V DC

8.5 mA

6.06 mA

17.15 mA

Potential-free outputs

–

–

●

Maximum contact load

–

–

10 A/120 V AC
10 A/230 V AC
10 A/24 V DC
6 A/30 V DC

Maximum switching load

–

–

–

-S: IP 54; -D: IP 30

-S: IP 54; -D: IP 30

-S: IP 54; -D: IP 30

Permissible operating temperature

-20°C to +55°C

-20°C to +50°C

-20°C to +50°C

Connectable to LSN classic fire
panels

●

●

●

- E: in-built

–

–

–

- W: wall-mount

–

–

–

- D: DIN rail

●

●

●

- S: with surface-mounted housing

●

●

●

Wiring type
Input voltage LSN
Max. current consumption from
LSN

Protection category

Design

www.boschsecurity.com

2 | LSN Interface Modules Series 420

LSN Interface Modules Series 420

FLM‑420‑RLV1

FLM-420-RLV8-S

FLM‑420‑I2

Interface type

Relay Interface Module Low
Voltage

Octo-relay Interface Module
Low Voltage

Input Interface Module

Function

1 change-over contact relay

8 change-over contact relays

Monitoring of up to 2 inputs

2-wire

2-wire

2-wire

15 V DC to 33 V DC

15 V DC to 33 V DC

15 V DC to 33 V DC

1.75 mA

3. 55 mA

10.4 mA

Potential-free outputs

●

●

–

Maximum contact load

-D: 5 A/30 V DC
-S: 2 A/30 V DC

2 A/30 V DC

–

–

–

–

Wiring type
Input voltage LSN
Max. current consumption from
LSN

Maximum switching load

IP 30

IP 54

IP 30

Permissible operating temperature

-20°C to +55°C

-20°C to +65°C

-20°C to +65°C

Connectable to LSN classic fire
panels

●

●

–

- E: in-built

●

–

●

- W: wall-mount

–

–

●

- D: DIN rail

●

–

●

- S: with surface-mounted housing

–

●

–

Protection category

Design

LSN Interface Modules Series 420 | 3

LSN Interface Modules Series 420

Interface type
Function

Wiring type
Input voltage LSN
Max. current consumption from
LSN
Potential-free outputs

FLM‑420‑O2

FLM-420-I8R1-S

FLM-420-O8I2-S

Output Interface Module

Octo-input Interface Module
with Relay

Octo-output Interface Module
with 2 Inputs

2 semi-conductor outputs for
controlling external devices

Monitoring of up to 8 inputs

8 semi-conductor outputs for
controlling external devices
and 2 monitored inputs

2-wire

2-wire

2-wire

15 V DC to 33 V DC

15 V DC to 33 V DC

15 V DC to 33 V DC

4.9 mA

5.5 mA

5.5 mA

●

●

●

–

2 A/30 V DC

–

700 mA/30 V DC

–

700 mA/30 V DC

IP 30

IP 54

IP 54

Permissible operating temperature

-20°C to +65°C

-20°C to +65°C

-20°C to +65°C

Connectable to LSN classic fire
panels

–

●

●

- E: in-built

●

–

–

- W: wall-mount

●

–

–

- D: DIN rail

●

–

–

- S: with surface-mounted housing

–

●

●

Maximum contact load
Maximum switching load
Protection category

Design

www.boschsecurity.com

4 | LSN Interface Modules Series 420

LSN Interface Modules Series 420

FLM‑420‑O1I1
Interface type
Function

Wiring type
Input voltage LSN
Max. current consumption from
LSN
Potential-free outputs

FLM-420-RLE-S

Output-input Interface Module Extinguishing Interface Module

FLM-I 420-S
Short Circuit Isolator

1 semi-conductor output for
controlling external devices
and 1 monitored input

Connection of extinguishing
system

Isolating alarm zones with
short circuit

2-wire

2-wire

2-wire

15 V DC to 33 V DC

15 V DC to 33 V DC

15 V DC to 33 V DC

1.9 mA

7.9 mA

0.25 mA (after initialization)

●

●

–

–

–

–

700 mA/30 V DC

–

–

IP 30

IP 54

IP 54

Permissible operating temperature

-20°C to +65°C

-20°C to +50°C

-20°C to +50°C

Connectable to LSN classic fire
panels

–

●

–

- E: in-built

●

–

–

- W: wall-mount

–

–

–

- D: DIN rail

●

●

–

- S: with surface-mounted housing

–

●

●

Maximum contact load
Maximum switching load
Protection category

Design



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