8 ELECTRICAL CONNECTIONS
CAUTION! ALWAYS FOLLOW THE SAFETY REGULATIONS!
8.1 The electrical installation must be carried out by an authorized and competent electri-
cian who assumes all the responsibilities.
8.2 Ensure that the mains voltage is the same as shown on the plate of the motor to be fed and
be sure TO MAKE A GOOD GROUND CONNECTION.
8.3 The electropump, both the single-phase and the three-phase version is supplied with an
electric cable. If the power cable is damaged in any way it must be replaced, not repaired.
It is advisable to connect the pump to a dedicated power line.
Upstream from the pump, fit a suitably sensitive magnetothermal differential switch.
Switch off the power upstream from the system before making the electrical connection.
Single-phase motors are provided with built-in thermal overload protection and may be con
nected directly to the mains.
Warning: If the motor is overloaded it stops automatically. Once it has cooled down it starts
again automatically without requiring any manual intervention.
Three-phase pumps must be protected with motor protectors suitably calibrated according to
the values on the data plate of the pump to be installed.
Connect the pump cable to the electric panel, ensuring that the following parts correspond:
SINGLE PHASE
Yellow-green
Brawn
Blue
Before making a test start, check the water level inside the well.
ENGLISH
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