MS4 is an expander module for built-in mounting in the box of MAG8plus conventional fire alarm panel. The module provides 4 additional sounder outputs to the fire system.

Up to two MS4 expander modules can be mounted in the box of standard configuration of MAG8plus fire alarm panel thus providing 8 additional sounder circuits to the fire system.

Together with the PCB of the expander module are delivered also four 10K resistors and a transparent light pipe for LED indication.


SKU: 258 Category:


  • Sounder circuits: 4
  • Sounders per circuit / max. number of sounders/: 1/4
  • LED indication for troubles in the sounder circuit
  • LED indication for sounders status


Power supply (from the fire alarm control panel) +24VDC
Consumption in alarm mode 150mA
Operating temperature  0°C to +40°C
Weight ~0.2kg
Dimensions 57x81mm


Product Documents

Marketing Documentation

MS4 - Datasheet
Updated at 11.04.2020 Size 0.50MB

Product pictures