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6.7.3
Preparing the electrical connec-
tion
1.5 ... 4 kW:
Fig. 25: Threaded cable glands for mains connection cable
30
Installation and electrical connection
The installer or user must ensure that these pumps are operated properly. If necessary,
consult the network operator. In the event of industrial use on a factory-owned me-
dium-voltage outlet, responsibility for the connection conditions lies exclusively with
the operator.
NOTICE
A suitable harmonic filter between the pump and supply network reduces the
amount of harmonic current.
The Yonos GIGA-N pump must be fitted with an additional earthing! Fit the addi-
tional earthing to the motor base or baseplate (on the motor side).
Establish an electrical connection via a stationary mains cable. The mains cable must
have a plug device or an all-pole switch with a contact opening width of at least 3 mm.
If flexible cables are used, e.g. mains connection cables or communication cables, use
ferrules.
Always lead the mains cable through the designated threaded cable gland (M25 or
M40)!
5.5 ... 7.5 kW:
M25
Power
P
[kW]
N
1.5 ... 4 kW
5.5/7.5 kW
11 kW
15 kW
18.5/22 kW
Table 10: Cable cross-sections
NOTICE
Tightening torques for the terminal screws, see table "Tightening torques for
threaded cable glands".
Only use a calibrated torque wrench.
In order to comply with electromagnetic compatibility standards, the following cables
must always be shielded:
ƒ
Differential pressure sensor (DPS) (if installed on-site)
ƒ
In2 (setpoint)
ƒ
DP communication for cable lengths > 1 m (DP = dual-pump; "MP" terminal)
Observe polarity:
MA = L => SL = L
MA = H => SL = H
ƒ
EXT. Off
ƒ
AUX
ƒ
Communication cable IF module
The shield must be applied to the EMC cable clips in the electronic module and to the
other end. The cables for SBM and SSM do not have to be shielded.
11 ... 22 kW:
M25
Cable cross-section
2
[mm
]
1.5 ... 4
2.5 ... 6
4 ... 6
6 ... 10
10 ... 16
M40
PE
2
[mm
]
2.5 ... 4
4 ... 6
6 ... 35
WILO SE 2020-10
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