Product Guide

Product data
SQFlex
1
4
Motor
The motor has been developed specifically for the
SQFlex system and is designed according to the
permanent-magnet principle with built-in electronic unit
and is available in only two sizes.
The motor speed range is 500-3600 rpm, depending
on power input and load.
The motor is constructed in 304 stainless steel.
Max. ratings are as follows:
• Maximum power input (P
1
) of 1400 W
• maximum current of 8.4 A
• maximum speed of 3600 rpm
The pump delivers its maximum performance when
one of the above parameters is reached.
Fig. 3 Wiring diagram
The motor is to be connected to the power supply as
shown in fig. 3.
As the integrated electronic unit enables the motor to
handle both DC and AC supply voltages, it makes no
difference how the wires "+" and "–" or "N" and "L" are
connected.
Supply voltage
Flexible as regards power supply and power range, the
motor can be supplied with either DC or AC voltage:
• 30-300 VDC, PE
• 1 x 90-240 V –10 % / +6 %, 50/60 Hz, PE.
CU 200 SQFlex control unit
The CU 200 is a combined status and control unit for
the SQFlex pump system. Moreover, the CU 200
enables connection of a level switch placed in a water
reservoir or tank.
IO 50 SQFlex switch box
The IO 50 is an on/off switch box designed for opening
and closing the system power supply.
IO 101 SQFlex switch box
The IO 101 is an on/off switch box designed for
opening and closing the system power supply and is
used in solar-powered SQFlex systems with a back-up
generator.
IO 102 SQFlex breaker box
The IO 102 is an on/off breaker box designed for
opening and closing the system power supply and is
used in wind-powered SQFlex systems or wind- and
solar-powered SQFlex systems.
The IO 102 makes it possible to slow down or stop the
wind turbine.
Charge controller
The charge controller is used when a battery backup
system is installed with an SQFlex pumping system.
Solar modules
Grundfos’ solar modules have been developed
specifically for the SQFlex system. The solar modules
are equipped with plugs and sockets enabling easy
connection in series or parallel.
For further information on solar modules, please
contact your local Grundfos company.
Generator
In case the power supply from its primary source of
energy is temporarily insufficient or unavailable, the
SQFlex system can be powered by a generator.
Batteries
The SQFlex system can be powered by batteries with
a voltage supply of 30-300 VDC, maximum current
8.4 A.
TM02 2437 3901
NL
30-300 VDC 1 x 90-240 VDC