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Power Factor Controller CX eco

Application field: LV

The Power Factor Controller CX eco is based on the CX plus, but the functionality is reduced to basic functions at a more economic price. Features like Transistor outputs, Digital input or Modbus communication are not available on the CX eco controller.

The well-proven wide-range power supply known from the BLR-CX is also used in the CX plus and
CX eco with a voltage range of 90 – 550 V AC. The detected capacitor step sizes are verified and updated during operation so that it is always compensated with actual values. This way the ageing of the capacitors is detected, an alarm is given and the relevant capacitor stage locked preventively when dropping below a specific capacitance.

The patented Best Fit Algorithm delivers the best result of the power factor cos φ with the lowest amount of switching cycles. When having capacitors of equal size, the switching times or the switching cycles are distributed evenly.

This extends the life span of the capacitors and contactors, thus saving your investment.

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Connection diagram

Technical data


Difference between the CX eco and CX plus?


Stephan Leckel

Head of Sales and Technology

+49 8861 2332-45

Anna-Maria Jais

Technical Sales

+49 8861 2332 47

Alexandra Wegner

Sales / Export

+49 8861 2332-44

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