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.

              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.

              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

              Model Capacity(kvar) Over-temperature protection System voltage(V)
              Single-phase
              KLD-CS15-1-2010 15 Provided 400
              KLD-CS30-1-2010 30 Provided 400
              KLD-CS45-1-2010 45 Provided 400
              Three-phase
              KLD-CS12.5-3-2010 12.5 Provided 400
              KLD-CS15-3-2010 15 Provided 400
              KLD-CS20-3-2010 20 Provided 400
              KLD-CS25-3-2010 25 Provided 400
              KLD-CS30-3-2010 30 Provided 400
              KLD-CS40-3-2010 40 Provided 400
              KLD-CS50-3-2010 50 Provided 400

              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


              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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