Bosch PRAESENSA - Page 172

172 en | Power supply module | PRA-PSM24, PRA-PSM48 PRAESENSA
2019.11 | V1.00 | Installation manual Bosch Security Systems B.V.
Power transfer
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)
PRA-PSM48
Power transfer
Mains power supply input
Input voltage range
Input voltage tolerance
Frequency range
Inrush current
Power factor (PF)
Leakage current to safety ground
100 to 240VAC
85 to 264VAC
50 to 60Hz
< 35A (115V, 230V)
0.9 to 1.0
< 1mA (240V)
48VDC output
Nominal DC output voltage
Output voltage range
Maximum continuous current
Derating
Maximum peak current
48V
48 to 56 V
5A
-0.125 A/°C above 50°C
7.5A
Heat loss
Active mode, rated power 90kJ/h (85Btu/h)
PRA-PSM24 and PRA-PSM48
Protection
Overvoltage
Overload
Over-temperature
Automatic recovery
Automatic recovery
Automatic recovery
Environmental
Climatic conditions
Temperature
Operating
Storage and transport
-25 to +80°C
(-13 to 176°F )
-40 to +85°C
(-40 to 185°F )
Humidity (non condensing) 5 to 95%
Air pressure 750 to 1070hPa