Bosch PRA-CSE - Page 127

PRAESENSA Multifunction power supply, large | PRA-MPS3 | en 127
Bosch Security Systems B.V. Installation manual 2019.11 | V1.00 |
Power transfer
Active mode, all outputs loaded
Per active port
Per active SFP port
<1000W
0.4W
0.7W
Lifeline / power save interface
Audio level (100V / 70V mode)
Frequency response (+0 / -3 dB)
Signal to Noise Ratio (SNR)
0dBV / -6dBV
200Hz to 15kHz
90dBA
EN54‑4 related information
Maximum battery capacity 230 Ah
Lowest discharge voltage 9 V
Continuous output current
(I max. a / I max. b / I min.)
48 VDC outputs (1-3)
24 VDC output
PoE output (1-2)
Lifeline DC outputs (1-3)
5.5 A / 5.5 A / 0 A
0.7 A / 0.7 A / 0 A
0.3 A / 0.3 A / 0 A
0.7 A / 0.7 A / 0 A
Output voltage range
48 VDC outputs (1-3)
24 VDC output
PoE output (1-2)
Lifeline DC outputs (1-3)
46 to 50 V
23 to 25 V
44 to 57 V
9 to 18 V
Maximum impedance of battery circuit
230 Ah battery
180 Ah battery
140 Ah battery
100 Ah battery
7.1 mohm
8.6 mohm
9.8 mohm
11.0 mohm
Control interface
Control input contacts (1-8)
Principle
Galvanic isolation
Supervision
Contact closed
Contact open
Cable fault detection
Minimum hold time
Maximum voltage to ground
Contact closure
No
Resistance
measurement
8 to 12kohm
18 to 22kohm
<2.5kohm/>50kohm
100ms
24V
Control output contacts (1-8)
Principle
Galvanic isolation
Contact switch over
(Relay SPDT)
Yes