SQ is a small and compact submersible multi-stage pump designed for domestic applications and operation in wells. The motor of the SQ pump is a permanent magnet motor with a micro frequency converter ensuring optimum efficiency at a constant speed. The built-in frequency converter features protective functions and soft-starting, which reduces starting current and gives smooth and steady acceleration. The SQ pump is handy and user-friendly due to its low weight and 3-inch diameter. Installation of the SQ pump is easy and motor protection is provided by the built-in frequency converter.

Features

Excellent starting capabilities
The soft starter minimises the risk of wear on the pump and prevents overloading of the mains during start-up. Its soft-start system also reduces water hammering, light.

Overvoltage and undervoltage protection
The integrated protection prevents damage to the motor in case the supply voltage moves outside the permissible voltage range.

Overload protection
The SQ eliminates the need for motor protection. If the pump is exposed to heavy load the motor will automati - cally reduce its speed, or if the pump is blocked it automati - cally stops pumping.

Over-heating protection
As an extra protection, the electronic unit has a built-in temperature sensor. When the temperature exceeds a critical limit, the pump is stopped. When the temperature has dropped, the pump automatically starts again.

Operating conditions

pH values
5 to 9
Liquid temperature
0 °C to +35 °C

Technical data

Mains voltage
1 x 200-240V, 50/60 Hz
1 x 1 00-115 V, 50/60 Hz
Enclosure class
IP68
Insulation class
F
Installation depth
Max. 150m below static water level
Pump diameter
74mm
Borehole diameter
min. 76mm
Sound pressure level
The sound pressure level of the pump is lower than the limiting values stated in the EC Council Directive 2006/42/EC relating to machinery.
Approvals and markings
CE, UL, cUL, NSF, KTW, JET, C-tick