Electrical System - KSB Amarex KRT Installation & Operating Manual

Fig. 16: Attaching the
lifting chain/rope
5 Installation at Site
5.3.2 Wet-installed transportable models
Attaching the lifting chain/rope
1. Attach the lifting chain or rope to the bail at the pump set on the side closest
tothe discharge nozzle.
Fitting the foot plate or pump stool
Fit the foot plate or pump stool before installing the pump. Tighten the screws as
specified, see the "Tightening torques" table.
Connecting the piping
The DIN connection can be connected to rigid or flexible pipes.
Fig. 17: Connection options

5.4 Electrical system

5.4.1 Information for planning the control system
For the electrical connection of the pump set observe the wiring diagrams.
The pump set is supplied with a power cable; it is wired for DOL starting.
Star-delta starting is an option for pump sets with 12-core connection cable
(motors42.E, 52.E, 72.E, 44.E, 54.E).
NOTE
When laying a cable between the control system and the pump set's connection
point, make sure that the number of cores is sufficient for the sensors. A minimum
cross-section of 1.5 mm² is required.
The motors can be connected to electrical low-voltage grids with rated voltages and
voltage tolerances to IEC 38 or to other grids or power supply facilities with
maximum rated voltage tolerances of ± 10 %.
5.4.1.1 Overload protection
1. Protect the pump set against overloading by a thermal time-lag overload
protection device in accordance with IEC 60947 and local regulations.
2. Set the overload protection device to the rated current specified on the name
plate.
Amarex KRT
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