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Grundfos MQ 3-45 User Manual

Grundfos MQ 3-45
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9
English (US)
9. Electrical connection
The electrical connections and additional protection
should be carried out by qualified persons in
accordance with local regulations.
The operating voltage and frequency are marked on
the nameplate. Make sure that the motor is suitable
for the electricity supply on which it will be used.
The pump must be connected to the mains via a
sheathed cable with a protective ground lead.
It is possible to replace the mains supply cable.
See fig. 12.
Fig. 12 Electrical connection
Connect the mains supply cable of the pump to the
electricity supply. When the cable is connected, a red
and a green indicator light on the control panel will
be on. See fig. 13.
Fig. 13 When mains supply cable is connected,
these two indicator lights will be on
9.1 Generator or inverter
Warning
Non-submersible pump.
If the power cord is damaged, it must
be replaced by the manufacturer, an
authorized service center or by a
qualified person in order to avoid risks.
Never make any connections in the
pump terminal box unless the
electricity supply has been switched
off for at least 5 minutes.
Risk of electric shock:
This pump is supplied with a grounding
conductor and grounding type
attachment plug. To reduce the risk of
electric shock, install only on circuit
protected by a Ground-Fault-Circuit-
Interrupter (GFCI).
This pump is not intended, nor has it
been investigated for use in swimming
pool or marine areas.
This pump has been evaluated for use
with water only.
Do not start the pump until it has been
filled with water (primed, see fig. 14).
Acceptable for indoor and outdoor use.
Enclosure type 3.
TM01 9694 2600TM01 9695 2600
Note
The MQ can be powered by a generator
or an inverter. However, the pump will
only operate satisfactorily if the
generator or inverter generates a true
sinusoidal wave with the necessary
power and voltage input. The generator
must be sized 10 % above the P1
(input power) of the pump. For P1,
see section 13.1 Dimensions.

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Grundfos MQ 3-45 Specifications

General IconGeneral
Power consumption1000 W
Maximum head45 m
Maximum flow rate3 m³/h
Protection classIP54
Weight13 kg
Maximum liquid temperature35 °C
Maximum operating pressure7.5 bar
Pumped liquidClean water
Liquid temperature range0 - 35 °C
Maximum ambient temperature45 °C
Supply voltage220-240 V
Rated power - P20.75 kW
Mains frequency50/60 Hz
Rated current4.5 A
Enclosure classIP54
Inlet connection1 inch
Outlet connection1 inch
Power supply220-240 V, 50/60 Hz
Pump typeCentrifugal
Built-in pressure tankYes
ApprovalsCE
MaterialStainless steel

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