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Dedicated 24V Device Power
Designed to supply compatible PRAESENSA system controllers and PAVIRO controllers or routers with 24 VDC from the mains.
Compatible System Power
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-PSM2424 V Power Supply Module
Compact, DIN-rail 24 VDC power supply with universal mains input and power factor correction for compatible PRAESENSA system controllers and PAVIRO controllers or routers.
- 24 VDC Output
- 10 A Continuous
- DIN-rail Mounting
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-PSM2424 V Power Supply Module
Compact, DIN-rail 24 VDC power supply with universal mains input and power factor correction for compatible PRAESENSA system controllers and PAVIRO controllers or routers.
- 24 VDC Output
- 10 A Continuous
- DIN-rail Mounting
PRA-PSM24 · PRODUCT VIEWS
Explore the PRA-PSM24 Front & Rear Connections
Explore two labelled views of the Bosch PRA-PSM24: front electrical connections and rear DIN-rail mounting. Switch views to inspect the module’s connection and installation details.
FRONT CONNECTIONS · 01 / 02
PRA-PSM24 · PRODUCT VIEWS
Explore the PRA-PSM24 Front & Rear Connections
Explore two labelled views of the Bosch PRA-PSM24: front electrical connections and rear DIN-rail mounting. Switch views to inspect the module’s connection and installation details.
FRONT CONNECTIONS · 01 / 02
Key specs
- 24 VDC power supply for PRAESENSA and PAVIRO systems
- 10 A continuous and 15 A peak output current
- Universal AC mains input with power factor correction
- Automatic overvoltage, overload and thermal protection
- Compact TS35 DIN-rail mounting design
- Fanless, natural convection cooling
- IP20-rated aluminum enclosure
Bosch PRA-PSM24 — Technical Specifications
Explore the technical specifications of the Bosch PRA-PSM24 24V DC Power Supply Module, including its AC input requirements, DC output capacity, protection features, DIN-rail mounting, and environmental operating limits for compatible PRAESENSA and PAVIRO equipment.
Specification | Value |
|---|---|
PRODUCT INFORMATION | |
Brand | Bosch |
Model / CTN | PRA-PSM24 |
Product Number | F.01U.410.358 |
Product Type | 24V DC Power Supply Module |
System Compatibility | PRAESENSA / PAVIRO |
ELECTRICAL — AC INPUT | |
Nominal AC Input Voltage | 100–240 VAC |
AC Input Voltage Tolerance | 85–264 VAC |
Input Frequency | 50–60 Hz |
Inrush Current | <35 A (at 115 V and 230 V) |
Power Factor | 0.9–1.0 |
Leakage Current to Safety Ground | <1 mA at 240 V |
ELECTRICAL — DC OUTPUT | |
Nominal DC Output Voltage | 24 VDC |
DC Output Voltage Range | 24–28 VDC |
Maximum Continuous Output Current | 10 A |
Maximum Peak Output Current | 15 A |
Output Current Derating | −0.25 A/°C above 50°C |
POWER & RELIABILITY | |
Power Consumption at Rated Power | 265 W |
Heat Loss at Rated Power | 90 kJ/h (85 BTU/h) |
Mean Time Between Failures (MTBF) | 500,000 hours |
Cooling Method | Natural convection |
PROTECTION | |
Overvoltage Protection | Automatic recovery |
Overload Protection | Automatic recovery |
Overtemperature Protection | Automatic recovery |
MECHANICAL | |
Dimensions (H × W × D) | 121 × 85 × 124 mm |
Weight | 1.10 kg |
Enclosure Material | Aluminum |
Ingress Protection | IP20 |
Mounting Type | 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 | <0.35 mm |
Operating Vibration Acceleration | <3 G |
Transport Bump Resistance | <10 G (IEC 60068-2-27) |
Questions & answers
Know before you buy
Quick answers about the PRA-PSM24, and how it compares.
Which 24V power supply is compatible with Bosch PRAESENSA and PAVIRO systems?
The Bosch PRA-PSM24 is a 24 VDC power supply module approved for compatible PRAESENSA system controllers and PAVIRO controllers and routers. It delivers up to 10 A continuously and is suitable for mains-powered installations where the additional functions of a multifunction power supply are not required. Compatibility should be checked against the specific equipment and system configuration.
What are the output voltage and current specifications of the Bosch PRA-PSM24?
The Bosch PRA-PSM24 provides a nominal 24 VDC output, adjustable from 24 to 28 VDC. Its maximum output current is 10 A continuous and 15 A peak. It also features universal AC mains input, power factor correction and automatic-recovery protection against overvoltage, overload and overtemperature.
Can two Bosch PRA-PSM24 modules provide redundant power to a PRAESENSA system controller?
Yes. Bosch documents using two PRA-PSM24 power supplies for a compatible PRAESENSA system controller, with one connected to the controller's 24 V input A and the other to input B. The supply with the higher output voltage powers the controller, while the other remains available as a redundant supply. This arrangement does not provide battery backup during a complete mains failure.
What is the difference between Bosch PRA-PSM24 and PRA-PSM48 power supplies?
The PRA-PSM24 is a 24 VDC supply delivering up to 10 A continuously for compatible PRAESENSA controllers and PAVIRO equipment. The PRA-PSM48 provides 48 VDC at up to 5 A continuously and is approved for a compatible PRAESENSA 600 W amplifier. Both are compact DIN-rail modules, but their voltage requirements and intended equipment differ. They should not be treated as interchangeable.
Does the Bosch PRA-PSM24 support battery backup for emergency voice alarm systems?
No. The PRA-PSM24 is a mains-powered AC-to-DC supply and does not include a battery charger or integrated standby battery. Bosch also states that it is not certified to EN 54-4. Installations requiring compliant supervised backup power must use an appropriately designed and approved power-supply solution rather than relying on the PRA-PSM24 alone.
How many Bosch PRA-PSM24 modules are required for a PRAESENSA or PAVIRO installation?
The required number of PRA-PSM24 modules depends on the connected equipment, power demand and redundancy requirements. A compatible PRAESENSA system controller may use one supply or two supplies connected to its A/B inputs for redundant power. For PAVIRO installations, the module quantity must be determined from the controller and router power requirements and the approved system design.
What is the Bosch PRA-PSM24 price in Pakistan, and where can I buy it?
For Bosch PRA-PSM24 pricing and availability in Pakistan, contact ESCO Pakistan for a quotation. Share your PRAESENSA or PAVIRO equipment models, required quantities and redundancy requirements so the appropriate 24 VDC power-supply configuration can be confirmed. Final pricing, availability and delivery arrangements are subject to quotation.