PRAESENSA Multifunction power supply, large | PRA-MPS3 | en 115
Bosch Security Systems B.V. Installation manual 2019.11 | V1.00 |
For installation, it is very convenient when the cables are very flexible. In the metal industries,
welding cables are used that are hard wearing and flexible, and designed to transmit high
currents between the welding generator and electrodes. These cables are sometimes
identified by codes H01N2‑D for flexible cables and H01N2‑E for very flexible cables, in
accordance with EN50525‑2‑81. Useful sizes are 10, 16, 25, 35 and 50mm
2
and AWG sizes 6
to 1. Welding cables are available with red and black colored insulation and ideal for making
the connections between the PRA-MPS3 and the battery. Especially in racks, where the
equipment is mounted in a swing frame, flexibility of the cables is important.
Wire gauge [AWG] Wire cross section
[mm
2
]
Wire resistance
[mohm/m]
Maximum length
per wire [cm]
10 1.95 50
6 (13.3) 1.47 60
16 1.22 70
5 (16.8) 1.16 80
4 (21.1) 0.92 100
25 0.78 120
3 (26.7) 0.73 130
2 (33.6) 0.58 170
35 0.55 180
1 (42.4) 0.46 210
50 0.39 250
11.5.3 Mains power connection
1. Check that the mains (AC) power supply meets the nominal input rating of the PRA-
MPS3.
– The voltage that can be applied is any of the nominal power supply voltages in the
range of 115VAC to 240VAC. The frequency is 50Hz or 60Hz.
2. Use the supplied power cord (I) to connect to the mains line.
– If the supplied power cord cannot be used due to the plug shape, have a qualified
engineer replace it with an appropriate power cord of length 3m or less.
– The PRA-MPS3 uses an IEC60320-C14 appliance inlet; the mains cord must have a
matching C13 connector.
– The PRA-MPS3 has no power switch.
Notice!
The power cord with a plug can be used to disconnect the PRA-MPS3 from the mains.
Connect the plug to an easily accessible power outlet so that the plug can be removed from
the outlet at any time. Be sure to allow enough space around the power outlet.
3. The mains inlet has a built-in fuse T10A250V.
– The T‑characteristic of this 10A fuse refers to how rapidly it responds to various
current overloads. This is a slow-acting fuse (Time‑lag) that has additional thermal
inertia, designed to tolerate normal initial or start-up overload pulses.
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