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Dedicated Amplifier Supply
Designed to supply one compatible PRAESENSA 600 W amplifier without the additional network and battery functions of a multifunction power unit.
Purpose-Built Power
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-PSM48 PRAESENSA 48 V Power Supply Module
Universal mains input 48 V supply module with power factor correction, approved to power one PRAESENSA 600 W amplifier.
- 48 V Output
- Universal Mains Input
- 600 W Amplifier
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-PSM48 PRAESENSA 48 V Power Supply Module
Universal mains input 48 V supply module with power factor correction, approved to power one PRAESENSA 600 W amplifier.
- 48 V Output
- Universal Mains Input
- 600 W Amplifier
PRA-PSM48 · PRODUCT VIEWS
Explore the PRA-PSM48 Connections & Mounting
Examine the Bosch PRA-PSM48 48 VDC power supply module using the labeled front connection diagram and rear DIN-rail mounting diagram. Identify the power terminals, DC output controls and mechanical mounting features.
FRONT CONNECTIONS · 01 / 02
PRA-PSM48 · PRODUCT VIEWS
Explore the PRA-PSM48 Connections & Mounting
Examine the Bosch PRA-PSM48 48 VDC power supply module using the labeled front connection diagram and rear DIN-rail mounting diagram. Identify the power terminals, DC output controls and mechanical mounting features.
FRONT CONNECTIONS · 01 / 02
Key specs
- 48 VDC power supply module for Bosch PRAESENSA systems
- Approved to power one compatible PRAESENSA 600 W amplifier
- 48 VDC nominal output with up to 5 A continuous current
- Up to 7.5 A peak output current
- Universal AC mains input with power factor correction
- Automatic recovery from overvoltage, overload and overtemperature
- Compact, DIN-rail-mountable design
- Natural convection cooling without a fan
- IP20-rated aluminum enclosure
Bosch PRA-PSM48 — Technical Specifications
Explore the technical specifications of the Bosch PRA-PSM48 48V Power Supply Module, including AC input requirements, DC output performance, protection features, environmental limits and DIN-rail mounting details for compatible PRAESENSA installations.
Specification | Value |
|---|---|
PRODUCT INFORMATION | |
Brand | Bosch |
Model / CTN | PRA-PSM48 |
Product Number | F.01U.410.357 |
Product Type | 48V DC Power Supply Module |
System Family | PRAESENSA |
ELECTRICAL — AC INPUT | |
Nominal AC Input Voltage | 100–240 VAC |
AC Input Voltage Tolerance | 85–264 VAC |
Input Frequency | 50–60 Hz |
Inrush Current | Less than 35 A (at 115 V and 230 V) |
Power Factor | 0.9–1.0 |
Leakage Current to Safety Ground | Less than 1 mA at 240 V |
ELECTRICAL — DC OUTPUT | |
Nominal DC Output Voltage | 48 VDC |
DC Output Voltage Range | 48–56 VDC |
Maximum Continuous Output Current | 5 A |
Maximum Peak Output Current | 7.5 A |
Output Current Derating | −0.125 A/°C above 50°C |
Rated Power Consumption | 265 W maximum |
Heat Loss at Rated Power | 90 kJ/h (85 BTU/h) |
PROTECTION & RELIABILITY | |
Overvoltage Protection | Automatic recovery |
Overload Protection | Automatic recovery |
Overtemperature Protection | Automatic recovery |
Mean Time Between Failures (MTBF) | Greater than 500,000 hours |
Cooling Method | Natural convection |
MECHANICAL | |
Dimensions (H × W × D) | 121 × 85 × 124 mm |
Weight | 0.96 kg |
Enclosure Material | Aluminum |
Ingress Protection | IP20 |
Mounting | TS35 DIN rail (EN 60715) |
ENVIRONMENTAL | |
Operating Temperature | −25°C to +80°C |
Storage & Transport Temperature | −40°C to +85°C |
Relative Humidity | 5–95%, non-condensing |
Atmospheric Pressure | 750–1070 hPa |
Operating Altitude | 0–2500 m |
Operating Vibration Amplitude | Less than 0.35 mm |
Operating Vibration Acceleration | Less than 3 G |
Transport Bump Resistance | Less than 10 G |
Questions & answers
Know before you buy
Quick answers about the PRA-PSM48, and how it compares.
Which power supply is compatible with a Bosch PRAESENSA 600 W amplifier?
The Bosch PRA-PSM48 is a 48 VDC power supply module approved to power one compatible PRAESENSA 600 W amplifier. It delivers up to 5 A continuously and 7.5 A peak, providing a dedicated mains-powered supply where the additional functions of a PRA-MPS3 are not required. Always confirm compatibility with the exact amplifier and system configuration.
What are the voltage and current specifications of the Bosch PRA-PSM48?
The PRA-PSM48 provides a nominal 48 VDC output with an adjustable output range of 48–56 VDC. Its maximum output current is 5 A continuous and 7.5 A peak. Bosch specifies universal AC mains input with power factor correction and automatic recovery protection.
Can the Bosch PRA-PSM48 be installed on a DIN rail?
Yes. The PRA-PSM48 is designed for TS35 DIN-rail mounting in accordance with EN 60715. Its compact aluminum enclosure measures 121 × 85 × 124 mm and uses convection cooling without a fan. Installation must follow Bosch's electrical, ventilation and enclosure requirements.
What is the difference between Bosch PRA-PSM48 and PRA-MPS3 power supplies?
The PRA-PSM48 is a dedicated 48 VDC module for one compatible amplifier, while the PRA-MPS3 is a multifunction power supply for up to three compatible amplifiers and additional PRAESENSA devices. The PRA-MPS3 includes integrated battery charging, network switching, control interfaces and system supervision. Choose according to the installation's power, backup and integration requirements.
Does the Bosch PRA-PSM48 provide battery backup during a power failure?
No. The PRA-PSM48 does not include an integrated battery charger or standby battery. It converts AC mains power into DC power for connected equipment. Installations requiring supervised battery backup must use a suitable system power architecture, such as a correctly configured PRA-MPS3, where applicable.
How many Bosch PRA-PSM48 modules are needed for multiple amplifiers?
Bosch approves one PRA-PSM48 module to supply one compatible PRAESENSA 600 W amplifier. For multiple amplifiers, the appropriate quantity and power architecture depend on the approved equipment configuration. A PRA-MPS3 may be another option where several amplifiers require centralized power and additional system functions. Confirm the design before purchasing.
What is the Bosch PRA-PSM48 price in Pakistan, and where can I buy it?
For Bosch PRA-PSM48 pricing and availability in Pakistan, contact ESCO Pakistan for a quotation. Provide your amplifier model, required quantity and installation details so the appropriate 48 VDC power supply configuration can be checked. Final pricing, availability and delivery arrangements are subject to confirmation.