WARNING
Electric shock
Death or serious personal injury
‐ Before installation and startup, check
the power cable for damage.
DANGER
Electric shock
Death or serious personal injury
‐ The pump must be grounded. Before
connecting the pump to the voltage
supply, make sure the connection to
ground complies with the local
regulations.
Connect the pump to an external main
switch ensuring all-pole disconnection with
a contact separation according to EN
60204-1, 5.3.2. It must be possible to lock
the main switch in position 0.
The supply voltage and frequency are
marked on the nameplate. Make sure that
the motor is suitable for the power supply
at the installation site.
The electrical connection must comply with
the local regulations.
Connect the pumps to a controller with a
motor protection relay with IEC trip class
10 or 15 or NEMA-equivalent.
The power supply for the motor protection
circuit must be low voltage, class 2.
If the power cable is damaged, it must be
replaced by the manufacturer or his
service agent.
Set the motor-protective circuit breaker to
the rated current of the pump, +10 %
service factor for 50 Hz motors, +15 %
service factor for 60 Hz motors. The rated
current is stated on the nameplate.
Maintenance and service work on
explosion-proof pumps must be carried out
by Grundfos or an authorised service
workshop.
Before installation and the first startup of
the pump, check the condition of the cable
to avoid short circuits.
11
English (GB)
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