Pump control unit from KSB for demand-driven operation

Pump control – optimally matched and efficient

A reliable pump control unit is indispensable for the efficient operation of a pump. It ensures that devices of all types run according to demand.

KSB control units allow pumps to be controlled optimally and reliably. They monitor the operation of the pumps and protect them from impermissible modes of operation. For example, the overload protection and the dry running protection of the pump control unit ensure that the motor of a pump switches off automatically in case of doubt.

In addition, KSB offers additional accessories and spare parts for every pump control unit and responds flexibly to individual requests. If an electronic pump control unit is to be located outdoors, for example, KSB offers outdoor cabinets with/without additional installation space as well as associated heaters, thermostats and hygrostats for monitoring humidity.

Benefits of a pump control unit from KSB

• Particularly robust thanks to the combination of electronic components with proven electromechanical technology – also for pump protection
• Various fault and status reporting options to check the pump and control unit with flexibility at any time. Displays for pump current, mains voltage and mains monitoring are just as much a part of this as signalling accessories in the form of a flashing light, horn or combined alarm.
• High degree of standardisation: accessories are optimally matched to control units
• Straightforward installation, commissioning and operation of the control unit thanks to precise matching of pump and control system
• Pre-set at the factory so that only minimal adjustments are necessary at the place of use
• Conforming to universal requirements so that they can be easily combined with pumps from other manufacturers

Over 30 years of experience in building control units

The pump controls can be as different as the pumps they monitor. From simple switches to highly complex digital systems. KSB has been producing its own control units for over 30 years. Initially, the design of the controls was still purely electromechanical, there were no electronic components. KSB's product range at that time included various types of level controls, pressure controls and heating switchgear. Back then, there was a separate level control series for each type of sensor, but today KSB aims to cover as many different applications as possible with a single series.

Pump control units in a nutshell

This is how the pump control unit works

There are different types of pump control, which differ in their application. Even the simplest pump has at least one pressure switch, enabling it to be switched on or off. However, as soon as external influences determine when pumps are switched on or off, a control unit is necessary. External influences can be, for example, the fill level, pressure or temperature. When these reach a certain value, they usually set the pump to stand-by. If, in addition, there are also external variables measured in analogue form to which the control of the pump is to be oriented, an electronic frequency inverter is required in addition to the pump control unit.

The most common application is the control of pumps depending on the fill level, for example in a sump, reservoir or cistern. These containers are normally emptied. Whether one or more pumps start depends on the respective fill level. Level-dependent filling of containers is also possible, for example in a high-level tank.

In addition, there are many other reasons for switching a pump on or off – depending on the pump control, this can depend on the pressure, the time or the temperature. Accordingly, a distinction is made, for example, between control units dependent on level, time, temperature or pressure. Even a simple pump in a building can be equipped with a pressure maintenance circuit. If water is needed at a sink or washbasin and the tap is turned on, the pressure in the pipe drops and the pump starts.