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EN-27
EREBA He
2 - INSTALLATION OF UNIT
Table 1: Minimum and maximum wire section (per phase) for connection to
EREBA He units
Max.
connectable
section
(1)
Calculation favourable case:
Calculation unfavourable case:
- Suspended aerial lines (standardised routing No. 17)
- XLPE insulated cable
- Conductors in conduits or multi-conductor cables
in closed conduit (standardised routing No. 41)
- PVC insulated cable, if possible
EREBA He
Section
Section
(2)
Max. length for
voltage drop <5%
Cable type
Section
(2)
Max. length for
voltage drop <5%
Cable type
(3)
mm²
(per phase)
mm²
(per phase)
m
-
mm²
(per phase)
m
-
5 (1Ph)
3G4²
3G2,5²
100
H07RNF
3G2,5²
80
H07RNF
7 (1Ph)
3G4²
3G2,5²
100
H07RNF
3G2,5²
80
H07RNF
11 (1Ph)
3G4²
3G4²
100
H07RNF
3G4²
80
H07RNF
15 (1Ph)
3G4²
3G4²
100
H07RNF
3G4²
80
H07RNF
11 (3Ph)
5G4²
5G2,5²
100
H07RNF
5G2,5²
80
H07RNF
15 (3Ph)
5G4²
5G2,5²
100
H07RNF
5G2,5²
80
H07RNF
Accessory
Remote WUI
Use cables H07RN-F 4x0.75 mm² up to 50m to connect the user interface WUI (not supplied with accessory)
CAUTION:
Use the grey ferrite which is supplied in accessory to clamp around the WUI cable. Please clamp it directly after the customer's terminal block
Notes:
(1) Connection capacities actually available for each machine, defined according to the connection terminal size, the control box access opening size and the available
space inside the control box.
(2) Selection simultation result considering the hypothesis indicated.
(3) If the maximum calculated section is for an XLPE cable type, this means that a selection based on a PVC cable type can exceed the connection capacity actually
available. Special attention must be given to the selection.
Power cable entry
The power cables must be entered through
the cable gland from the rear of the unit.
Use a black ferrite which is supplied
in accessory to clamp around the
supply cable. Please clamp it directly
after the customer’s terminal block.
Please clamp the second one close
to the cable gland.
The power cable should not be in
contact with hot parts of the system.
2.4.3 - Recommended customer
electrical protection
Electrical protection is the responsibility of the
installer, and depends on the characteristics
and regulations applicable to each installation
site. The following is only to be used as a
guideline, and does not make manufacturer
in any way liable.
EREBA He
5
(1Ph)
7
(1Ph)
11
(1Ph)
15
(1Ph)
11
(3Ph)
15
(3Ph)
Circuit breaker:
Type
C
C
C
C
C
C
Current
A
10
16
25
25
16
16
Fuses:
Type
gG
gG
gG
gG
gG
gG
Current
A
16
20
32
32
20
20
Electrical data and operating conditions notes:
• EREBA He units have a single power connection point located immediately
upstream of the field power connections.
• The control box includes the following standard features:
-
Variable frequency drive for compressor, fans and pump (option)
-
The control devices.
• Field connections:
All connections to the system and the electrical installations must be in full accordance
with all applicable local codes.
• The EREBA He units are designed and built in compliance with EN 60335-1 and 2
(1)
.
NOTES:
• The operating environment for the EREBA He units is specified below:
1. Physical environment
(2)
. The classification of environment is specified in standard
EN 60364:
-
outdoor installation: protection level IP44
(2)
-
operating temperature range: -20°C to +46°C
-
storage temperature range: -20°C to +48°C
- altitude: ≤ 2000 m (see note for table 1.5.4 - Electrical data, hydraulic module)
- presence of hard solids, class AE3 (no significant dust present)
- presence of corrosive and polluting substances, class AF1 (negligible)
2. Power supply frequency variation: ± 2 %.
3. The neutral (N) conductor must be always connected to the unit
4. Overcurrent protection of the power supply conductors is not provided with the
unit.
5. The units are designed for simplified connection on TT networks (IEC 60364).
Caution: If particular aspects of an actual installation do not conform to the
conditions described above, or if there are other conditions which should be
considered, always contact your local representative.
(1) The absence of main power disconnect switch is an exception that must be
taken into account at field installation level.
(2) The required protection level for this class is IP43BW (according to reference
document IEC 60529). All EREBA He units fulfil this protection condition:
-
Closed electrical box is IP44
-
When accessing to interface, the level is IPxxB
Содержание Ereba He Series
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