Bosch PRAESENSA PRA-MPS3 Multi-function power supply large

The Bosch PRAESENSA PRA-MPS3 Multi-function power supply large is a powerful, compact, and fully supervised power distribution device designed to support large PRAESENSA Public Address and Voice Alarm systems. Combining multiple critical support functions into one compact unit, it enables highly efficient and cost-effective decentralized system topologies, reducing loudspeaker cabling distances and simplifying installation across large premises.

Ideal for airports, stadiums, campuses, shopping malls, hospitals, hotels, transportation hubs, and industrial facilities, the PRA-MPS3 provides stable DC power, backup battery management, integrated network switching, and redundant audio lifeline support for connected amplifiers—all in a single, robust module.

🔹Bosch PRAESENSA PRA-MPS3 Multi-function power supply large Three Independent High-Power DC Supplies

The PRA-MPS3 features:

• Three independent 48V DC outputs for up to three amplifiers

• One 24V DC output for a controller or auxiliary device

• Dual connectors on every output for A/B redundant wiring

• Electrical isolation—faults on one output do not affect others

• Universal mains input with Power Factor Correction (PFC)

This ensures maximum system reliability and efficiency.

🔹Bosch PRAESENSA PRA-MPS3 Multi-function power supply large Advanced Single-Battery Backup Solution

A unique benefit of the PRA-MPS3 is its single 12V VRLA battery backup design, supporting up to 230 Ah capacity. This delivers:

• Standards-compliant charging

• Uniform temperature and electrolyte distribution

• Extended battery lifespan

• Reduced maintenance costs

• Three independent 48V converters for amplifier backup

The included pre-terminated battery cable, fuse, and temperature sensor simplify installation and monitoring.

The device also offers:

• Accurate battery impedance measurement to detect aging

• Full supervision of battery status and wiring integrity

🔹Bosch PRAESENSA PRA-MPS3 Multi-function power supply large Integrated 6-Port Ethernet Switch with OMNEO

The built-in managed switch includes:

• Six OMNEO network ports

• Support for RSTP for fast redundancy recovery

• Two PoE-enabled RJ45 ports to power call stations

• One SFP cage for fiber-optic connections

This makes the PRA-MPS3 a central networking hub for decentralized clusters of PRAESENSA devices.

🔹 Supervised Control Inputs and Relay Outputs

For integration with external systems, the unit provides:

• Eight supervised control inputs for sensors or triggers

• Eight SPDT relay outputs for controlling external devices

• Full software configurability of I/O behaviors

This ensures flexible interfacing with fire panels, automation systems, monitoring hardware, and more.

🔹 Backup Lifeline Audio for Amplifiers

The PRA-MPS3 includes an OMNEO interface that also provides:

• Analog audio backup lifeline

Bosch PRAESENSA PRA-MPS3 Multi-function power supply large ensures announcements continue even during network disruptions, enhancing system resilience.

   Key Features

• Powerful multi-function power module for PRAESENSA

• Three independent 48V power supplies + 24V auxiliary output

• Unique single 12V VRLA battery charger (up to 230Ah)

• Integrated 6-port OMNEO Ethernet switch (RJ45 + SFP)

• Dual PoE ports to power call stations

• Fully supervised DC power with fail-safe redundancy

• Battery impedance monitoring and temperature sensing

• Eight supervised control inputs + eight SPDT relay outputs

• Backup lifeline analog audio

• Ideal for decentralized installations

     Ideal Applications

• Airports & transportation hubs

• Shopping malls & large commercial complexes

• Hospitals & medical campuses

• Universities & school clusters

• Stadiums & arenas

• High-rise buildings

• Industrial plants

• Hotels, resorts & convention centers