Product overview
KL27918 Version: 2.0.0
2 Product overview
2.1 Introduction
Fig.1: KL2791
In many industrialized countries, electric motors account for more than the half the current consumption,
which means there is huge energy-saving potential.
With the aid of speed control, it is quite easily possible to reduce the energy consumption to the level that is
actually required, thereby avoiding energy waste.
Beckhoff has extended its Bus Terminal system for this purpose. The KL2791 Bus Terminal is suitable for
use as a speed controller for single-phase AC motors up to 100VA.
In addition to energy conservation speed reduction offers noise reduction and increased motor service life.
The speed controller is extremely compact and is housed in a standard bus terminal with a width of 12mm.
The KL2791 Bus Terminal can be used in any bus system that is supported by the Beckhoff Bus Terminal
system.
It is designed for direct connection of low-power, single-phase AC motors.
The KL2791 enables speed reduction of typical motors such as capacitor motors, universal motors and
shaded-pole motors.
The KL2791-0011 is a version without power contacts (see ladder diagram on the right). This can be used
for 230V even without a special power feed terminal.
The KL2791-1200 is specifically designed for 120V mains voltage.
Other KS2791 variants feature pluggable wiring.
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