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Bosch PRA-PSM24 Power Supply Module 24V

(4 customer reviews)
BOSCH

The Bosch PRA-PSM24 Power Supply Module 24V is a compact DIN-rail mounted unit designed to provide continuous 24V / 10A power for PRAESENSA system controllers, PAVIRO controllers, and commercial PA devices. It features universal mains input, adjustable output, and built-in protection circuitry for safe and reliable operation

40,090.00 Excluding Tax

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The Bosch PRA-PSM24 Power Supply Module 24V is a professional-grade power supply designed specifically for public address and voice alarm infrastructure, including PRAESENSA and PAVIRO systems. Delivering a stable 24-28V DC output at up to 10A, this compact unit ensures trusted power delivery for system controllers and essential devices within commercial AV setups.

Bosch PRA-PSM24 Power Supply Module 24V Manufactured by Delta Power Supply as an OEM solution for Bosch, the PRA-PSM24 offers a cost-effective alternative to the PRA-MPS3 multifunction power supply when battery backup, EN-54 certifications, and additional supervisory features are not required. This makes it the ideal choice for non-evacuation systems or installations where backup power is provided externally.

Housed in a DIN-rail mountable enclosure, the power supply offers universal mains input with power factor correction, maximizing usable power drawn from a single-phase distribution network. A secured 3-pole screw plug ensures professional installation inside a protected cabinet or enclosure, preventing accidental disconnection or tampering.

Designed with operational safety and system protection in mind, the Bosch PRA-PSM24 includes:

  • Over-voltage protection with auto recovery

  • Over-load protection with auto recovery

  • Over-temperature protection with auto recovery

For redundant operation, two units can be connected to a single PRAESENSA system controller — one to input A and the other to input B — ensuring uninterrupted system performance. The supply with the highest voltage automatically becomes the active source while the second stays on standby.

Suitable for powering PRAESENSA system controllers, PAVIRO controllers, and routers, the PRA-PSM24 brings efficiency, protection, and installation flexibility to professional PA system designs.


🔸 Bosch PRA-PSM24 Power Supply Module 24V Key Features

  • Continuous 24V DC / up to 10A power output

  • DIN-rail mountable compact housing for control cabinets

  • Universal mains input with power factor correction

  • Safe professional wiring with secure screw-terminal input

  • Adjustable 24–28V output range

  • Compatible with PRAESENSA & PAVIRO systems

  • Triple safety: over-voltage, over-load, and thermal protection

  • Supports redundant PSU configuration for fail-safe operation

  • Cost-effective alternative to PRA-MPS3 for non-battery-backed use

PRA-PSM24

Brand

Technical specifications

Operating voltage (VAC) 85 – 264 VAC
Power consumption (W) 265 W maximum
Inrush current (mA) 35000 mA maximum
Output voltage (VDC) 24 – 28 VDC
Output current (A) (maximum continuous) 10 A
Output current (A) (maximum peak) 15 A
Nominal voltage (VDC) 24 VDC
Maximum heat loss (BTU/h) 85 BTU/h
Power factor 0,90
Air pressure (hPa) 750 – 1070 hPa
Material Aluminum
Cooling Convection
Mounting type Rail-mounted; Wall- mounted
Protection Overheat; Overload; Overvoltage
Degree of protection (IEC 60529) IP20
Operating temperature (°C) -25 – 80 °C
Operating relative humidity, non-condensing (%) 5 – 95%
Storage temperature (°C) -40 – 85 °C
Dimension (H x W x D) (mm) 121 x 85 x 124 mm
Weight (kg) 1,10 kg
Power transfer
Mains power supply input
Input voltage range 100 to 240 VAC
Input voltage tolerance 85 to 264 VAC
Frequency range 50 to 60 Hz
Inrush current < 35 A (115 V, 230 V)
Power factor (PF) 0.9 to 1.0
Leakage current to safety ground < 1 mA (240 V)
24 VDC output

Nominal DC output voltage Output voltage range Maximum continuous current Derating

Maximum peak current

 

24 V

24 to 28 V

10 A

-0.25 A/°C above 50°C 15 A

Power consumption

Active mode, rated power                              265 W

                                                                                                            

Heat loss

Active mode, rated power                              90 kJ/h (85 BTU/h)

Protection
Overvoltage Overload

Over-temperature

Automatic recovery Automatic recovery Automatic recovery

Based on 4 reviews

4.8 overall
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  1. Madhan Kumar

    I recently purchased Praesensa Power supply module from Bosch.
    Excellent product.Sleek Design.
    I am very happy with the prodct. Thank you Sakthi AV Tronics.

    Madhan Kumar

  2. Hepsiba

    Amazing Product Bosch Praesensa Power Supply. Quality is Very Good and the price was very reasoble when compared to other oulet markets. Sakthi Av Tronics service was much satisfied and Delivery was on time.

    Hepsiba

  3. Waren

    Bosch Praesensa supply module is Amazing. I am writing this review after using so many months. Very cost effective. I got from Sakthi AV Tronics in an affortable price.

    Waren

  4. Vanish

    Got Lowest Price from Sakthi AV Tronics. Bosch Praesensa supply module is very compact and good in build quality

    Vanish

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