Electrical Installation; Electrical Requirements; Electrical Connection Checklist; Electrical Control Panel Check-List - Xylem LOWARA SMB /SVE Series Installation, Operation And Maintenance Manual

en – Original instructions

4.3 Electrical Installation

DANGER: Electrical hazard
The connection to the electric power supply must be completed by an electrician possessing the
technical-professional requirements outlined in the current regulations.
For the electrical connections, refer to the wiring diagram in the control panel.

4.3.1 Electrical requirements

Local directives prevail on the specific requirements indicated below.

4.3.2 Electrical connection checklist

Check that the following requirements are met:
 The electrical leads are protected from high temperature, vibrations, and collisions.
 The current and voltage of the mains power supply must be compatible with the data on the
 Check that the power supply cable is capable of carrying the nominal current of the booster
 If there is a control panel, connect the power cable:
 Any exposed cables must be protected in an appropriate way
 The power supply line is provided with:

4.3.3 Electrical control panel check-list

NOTICE:
The standard version of the booster set has a control panel.
If the booster set is supplied without a control panel, install a control panel that is compatible with
the ratings of the pump unit.
Inappropriate combinations do not guarantee the protection of the booster set.
Check that the following requirements are met:
 The control panel must protect the pump unit against short-circuit. A time lag fuse or a circuit
 The pump unit has built in overload and thermal protection. No additional overload protection
DANGER: Electrical hazard
Before starting the pressure booster, make sure that the booster set and the control panel are
isolated from the power supply and cannot be energized.
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plate of the control panel, or the data on the plate of the pump unit in the case of booster sets
without control panel.
set, and connect it to the relevant terminals of the control panel. The wiring diagram and the
labels on the panel provide the necessary information for connection and the required power
supply values. For booster sets without control panel, refer to the Installation, Operation and
Maintenance Manual of the pump units in the Smart Pump Range.
- Single-phase version to the L-N terminals, PE to the ground terminal
- Single-phase version to the L1, L2 and L3 terminals, PE to the ground terminal
- A high-sensitivity differential switch (30 mA) [residual current device RCD] suitable for
earth fault currents with DC or pulsating DC content (a Type B RCD is suggested).
- A mains isolator switch with a contact gap of at least 3 mm.
breaker (Type C model is suggested) can be used to protect the pump unit.
is required.