Ambient System
Ambient System SMART-PSM48 power management unit with battery charger
Product code SMART-PSM48
Power management unit for the smartVES system that distributes 48 V DC to amplifiers and other devices and charges and monitors the battery bank. Up to four SMART-PS48800 power supplies, load up to 3,200 W. EN 54-4.
- Approved to EN 54-4, CPR 1438-CPR-0948
- Distributes 48 V DC to 8 outputs
- Battery charger: 4 × 12 V VRLA battery, 15–200 Ah
- Temperature-compensated charging and battery circuit resistance monitoring
- Up to 4 SMART-PS48800 power supplies
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Product description
SMART-PSM48 distributes DC power from the power supply units and the battery bank to the devices of the smartVES voice alarm system. According to the manufacturer, the supply power in battery operation is up to 3.2 kW (48 V). The unit meets the requirements of EN 54-4.
The main power source is provided by 800 W SMART-PS48800 power supply units, of which up to four can be connected. The power supply units are mounted in the SMART-PF4 mounting frame. Standby power comes from a battery bank of four 12 V VRLA batteries with a capacity of up to 200 Ah.
The power management unit keeps the battery bank charged and compensates the charging parameters for temperature. It monitors the series resistance of the battery bank and its wiring in accordance with Annex A2 of EN 54-4.
Technical data
- Product code
- SMART-PSM48
- Manufacturer
- Ambient System
- Product group
- Voice alarm systems › Amplifiers and power supplies
- Supply voltage
- 230 V AC +10 / −15%, 50/60 Hz
- Maximum rated power consumption
- 885 W / 3.85 A
- Efficiency
- Over 90% (rated power)
- DC inputs
- For 4 SMART-PS48800 power supply units (screw terminals)
- DC input protection
- 4 × 20 A, 58 V DC
- DC outputs
- 8 × 48 V, each max. 30 A (max. 63 A in total)
- Maximum total load
- 3,200 W
- Battery bank
- 4 × 12 V VRLA, 15–200 Ah
- Charging current
- Max. 14 A
- Charging voltage
- 54.6 V ± 0.6 V (25 °C)
- Maximum resistance of wiring and fuses
- 10 mΩ
- Total series resistance of the battery circuit
- 28–100 mΩ
- Maximum configuration
- 1 × SMART-PSM48, 4 × SMART-PS48800, 1 × SMART-PF4
- EN 54 approval
- EN 54-4
- CPR
- 1438-CPR-0948
- IP rating
- IP30
- Operating temperature
- −5…+40 °C
- Dimensions
- 482 × 85 × 443 mm (W × H × D)
- Weight
- 7.2 kg
- Mounting
- 19-inch rack
Documents
Original manufacturer documents (PDF).
Technical datasheets
Compatible products
Ambient System · SMART-PS48800
Ambient System SMART-
+ Add to quote requestPS48800 power supply unit 800 W 
Ambient System · SMART-PF4
Ambient System SMART-PF4 mounting frame for power supplies
+ Add to quote request
Ambient System · SMART-PA8160
Ambient System SMART-PA8160 class D power amplifier 8 × 160 W
+ Add to quote request- Ambient System
Ambient System · SMART-PA2650
Ambient System SMART-PA2650 class D power amplifier 2 × 650 W
+ Add to quote request
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