KLD-CS Series Composite Switch

It is suitable for switches in low-voltage reactive power compensation device. It adopts optimized internal algorithm and reliable zero-crossing switching technology to ensure the switches can accurately and quickly respond to changes every time.

PRODUCT OVERVIEW

Given that there are many inductive loads in modern industry, reactive power compensation is indispensable for them. Some scenarios with frequent changes in reactive power have higher requirements for the switching speed and stability of reactive power compensation. KLD-CS series composite switches are characterized by zero-crossing switching capacity and fast response speed, which is even highly applicable for the scenarios with frequent changes of reactive power.

KLD-CS series composite switches can precisely control the making and closing of reactive power compensation loop, featuring fast response time and strong overload capacity. It realizes voltage zero-crossing input and current zero-crossing removal, input without inrush current and no arcing for removal. It also automatically tracks the changes due to temperature, voltage and mechanical friction coefficient, and timely adjusts the drive parameters to limit the input inrush current to less than 2 times. Composite switch has low power consumption, and the starting power consumption is less than 10% of AC contactor of the same capacity, which is an ideal equipment to replace AC contactor.

MULTIPLE PROTECTION FUNCTIONS

KLD-CS series composite switches have diversified protection functions and LEDs indicate various alarm information.

Equipped with diversified protection functions such as phase loss, phase dislocation, power supply, overtemperature, etc., the switch can indicate the cause of alarm through the power supply alarm LEDs. When a fault occurs, the switch will trigger LED strobes, and the number of times of LED strobes indicates the fault code. The cause of the fault can be found by checking the alarm code table of the CS series composite switches to ensure the reliable operation of the equipment.

Protection functions

ZERO-CROSSING SWITCHING CAPACITY

Rapid and stable switching enables precise control of the switching process and reduces sudden changes in current and voltage.

It avoids the phenomenon of arcing, reduces the interference and loss generated by the switch, and improves the stability and reliability of the system, so as to provide a better application environment for capacitors and effectively prolong its service life.

Zero-crossing switching
Technical Parameters
Rated voltageAC400V
Voltage range-15%~+20%
Frequency range50Hz
Drive voltageDC 12V
Mechanical life1,000,000 times
Contact life200,000 times
Alarm temperature65ºC
Protection temperature75ºC
Power consumptionLess than 3VA
Relative humidityMax.95%
AltitudeConventional 2000 meters, higher altitude can be customized
Technical Parameters
  • Rated voltage: AC400V

    Voltage range: -15%~+20%

    Frequency range: 50Hz

    Drive voltage: DC 12V

    Mechanical life: 1,000,000 times

    Contact life: 200,000 times

    Alarm temperature: 65ºC

    Protection temperature: 75ºC

    Power consumption: Less than 3VA

    Relative humidity: Max.95%

    Altitude: Conventional 2000 meters, higher altitude can be customized

Selection Table

KLD-CS Series

ModelCapacity(kvar)Over-temperature protectionSystem voltage(V)
Single‑phase
KLD-CS15-1-201015Provided400
KLD-CS30-1-201030Provided400
KLD-CS45-1-201045Provided400
Three‑phase
KLD-CS12.5-3-201012.5Provided400
KLD-CS15-3-201015Provided400
KLD-CS20-3-201020Provided400
KLD-CS25-3-201025Provided400
KLD-CS30-3-201030Provided400
KLD-CS40-3-201040Provided400
KLD-CS50-3-201050Provided400
Selection Table

KLD-CS Series

Single‑phase

  • Capacity(kvar):15

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):30

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):45

    Over-temperature protection:Provided

    System voltage(V):400

Three‑phase

  • Capacity(kvar):12.5

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):15

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):20

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):25

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):30

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):40

    Over-temperature protection:Provided

    System voltage(V):400

  • Capacity(kvar):50

    Over-temperature protection:Provided

    System voltage(V):400

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