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Bosch Security Systems LSN 0300 A LSN Bus Module

300 mA LSN bus module for Bosch AVENAR panels, supporting LSN improved and classic LSN elements in loop, stub and T-tap topologies.

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Recorded specifications

Model Code
LSN 0300 A
Addressing
Automatic, Manual
Order Number
4.998.137.277
Weight Grams
225
Ingress Protection
IP30
Supported Protocols
Bosch LSN improved, Bosch LSN classic
Operating Voltage Vdc
20-30
Supported Topologies
Loop, Stub, T-tap
Compatible Panel Models
AVENAR panel 2000, AVENAR panel 8000
Dimensions Millimetres
Depth: 60; Width: 96; Height: 127
Maximum Line Length Metres
1600
Maximum Classic Lsn Elements
127
Maximum Lsn Improved Elements
254
Maximum Line Current Milliamps
300

Verified compatibility

Supporting sources

LSN 0300 A LSN bus module, 300 mA official product catalogue

Bosch Security Systems • Checked 2026-08-12

Source-checked
Open official source

AVENAR panel 2000 / AVENAR panel 8000 system manual F.01U.378.910, revision 05

Bosch Security Systems • Checked 2026-08-12

Source-checked
Open official source

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