Rev. 1.2 of 12.2020
33
The selection table for the cable diameters is presented below.
Cable system
Minimum distance
between cables: single
cable diameter
Single-core cables led in
a cable duct, on the wall,
horizontally. 6 cables (2
three-phase electric
circuits) with continuous
load
Single-core cables with
mutual contact in the air
or a perforated cable
duct.
6 cables (2 three-phase
electric circuits) with
continuous load
Single-core cables, led
horizontally with the air
gap
Cable
cross
section
mm
2
Cable
resistance
at 20
°C
R
20
a
mΩ/m
Maximum
work
current
I
max
b
A
Power loss
per cable
P
v
W/m
Maximum
work
current
I
max
c
A
Power loss
per cable
P
v
W/m
Maximum
work
current
I
max
d
A
Power loss
per cable
P
v
W/m
1.5
12.1
8
0.8
9
1.3
15
3.2
2.5
7.41
10
0.9
13
1.5
21
3.7
4
4.61
14
1.0
18
1.7
28
4.2
6
3.08
18
1.1
23
2.0
36
4.7
10
1.83
24
1.3
32
2.3
50
5.4
16
1.15
33
1.5
44
2.7
67
6.2
25
0.727
43
1.6
59
3.0
89
6.9
35
0.524
54
1.8
74
3.4
110
7.7
50
0.387
65
2.0
90
3.7
134
8.3
70
0.268
83
2.2
116
4.3
171
9.4
95
0.193
101
2.4
142
4.7
208
10.0
120
0.153
117
2.5
165
5.0
242
10.7
150
0.124
-
-
191
5.4
278
11.5
185
0.099 1
-
-
220
5.7
318
12.0
240
0.075 4
-
-
260
6.1
375
12.7
Available Versions
–
Housings
“ZUP” power supply unit housings should be selected after the unit parameters are defined,
out of the offer of renowned manufacturers, such as ZPAS, Rittal, Hager, ETI, Prefel and Sabaj.
The housings are made of steel sheet or aluminium panels. Depending on the space requirements
inside the housing, hanging and free-standing cabinets are available, with one or two doors. Due
to the systemic solutions, large power supply units may be enclosed inside more than one
housing, by connecting the housing bodies.
The decisive parameters for the type of housing to be applied are as follows:
•
number and type of selected modules of “ZUP” power supply units
•
installation location (indoor/outdoor)
Power supply units installed outdoor are made as free-standing cabinets, placed on a base.
Inside these housings there is always a module for heating and ventilating the cabinet interior.
All components of the “ZUP” unit are placed in sealed housings (IP54). Depending on the
number and type of selected modules and the place of installation, the housings may have the
following dimensions:
Содержание ZUP
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