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zasilacz systemów DSO
zasilacz systemów DSO

ZDSO400-ER1

Power supply for voice alarm systems 48 V 400W

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Fire Protection
  • 48V power supply for voice alarm systems
  • CNBOP-PIB certificates, compliant with EN 54-4 i EN 12101-10
  • Power range up to 400 W
Manufacturer:
MERAWEX
Approval Certificate
CE marked
Compliance with standard EN 12101-10:2005 + AC:2007
Compliance with standard EN 54-4:1997 + AC:1999 + A1:2002 + A2:2006
Installation in a 19” rack
Output voltage: 48 Vdc

Product description

The ZDSO400-ER1 48 V / 400 W floating-operation power supply is a certified device designed to supply voice alarm systems (VAS) requiring a reliable energy source and continuous operation under emergency conditions.

With an output power of 400 W and a load capacity of 6 × 15 A for the main outputs, the unit enables the supply of electroacoustic installations, while four additional 2 A outputs allow connection of auxiliary devices.

The fire safety power supply operates with a single 48 V battery string with a maximum capacity of 200 Ah, providing extended backup operation after a mains power failure. The 54.2 V float voltage and 8 A charging current ensure proper battery operation and fast battery recharge. The maximum permitted battery circuit resistance is 30–100 mΩ.

The device offers 84% efficiency, operates within an ambient temperature range of –5 °C to +45 °C, and is CNBOP-PIB certified. Compliance with EN 54-4+A1+A2 and EN 12101-10 confirms its suitability for use in fire safety systems.

The IP20-rated enclosure is designed for indoor installation.

Technical specification

AC supply voltage 230 V
DC output voltage 54,2
Current carrying capacity of main outputs for power amplifiers 6 × 15 A
Current carrying capacity of auxiliary outputs 3
Number and maximum capacity of batteries 200
Dimensions (WxHxD) [mm] 483 x 43 x 330
Installation 19'' rack

Application

  • voice alarm systems (VAS)
  • fire alarm systems

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