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ELECTRIC PUMP CONNECTION
Before making the electrical connection, the cables must be prepared with fork-type crimp terminals. The crimp
terminals (fork-type) must be crimped by specially trained personnel, using proper crimping tools.
After inserting the cable in the metal cable clamp, coil the three power cables (U',V',W') around the ferrite core
supplied, as shown in the images below. This preparation is essential to reduce electromagnetic disturbance. The
earthing wire must not be wound around the ferrite core, but connected directly to the terminal board. The device is
fitted with an output short circuit protection.
U'
MOTOR OUTPUT
TERMINAL
BOARD
V'
W'
T
he recommended cable section is 2.5mm
lengths from 2 to 30 metres. Longer cables, though
admissible, have not been tested according to the
EMI/RFI standards and must be evaluated by the
manufacturer.
The type of wire must be selected according to the
conditions of use (domestic, dry or wet, indoor or
outdoor installation).
Where an excessive cable length (over 30 metres) is
used, it is recommended to insert a dV/dT filter to limit
peak current voltage and for motor, especially windings,
longevity.
Also observe the installation limits as declared by the
manufacturer of the electric pump connected to Nettuno
34
W'
V'
U'
2
for cable
.
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