B2 Load Break Switches CONTENTS Features····················································································· B2-02 Ratings······················································································· B2-04 Accessories··············································································· B2-06

Load Break Switches LBS

Load Break Switches VITZRO EM Load Break Switch is a product developed from the previous model E3-Class and manufactured based on the 100A fuse-combined type test, which displays an excellent breaking performance and safety. In addition, it is a user-friendly, innovative premium-type product with various protection functions. It is successfully internationalized based on the KERI development test for the first time in the country. IEC62271-105 (Switch-Fuse) Load Break Switches IEC60265-1 (Load Break Switch) Reference Standard : KSC4615 B2 E3 Class LBS product with the best performance in the...

Ratings E3 Class HighPerformance New Model Standard Type Product Type Operation Method Rated Voltage Rated Current Switch Class (IEC Standard) Rated Frequency Rated Short Time Withstand Current Rated Making Current Power Frequency Withstand Voltage Between Earth Between Pole Impulse Withstand Voltage Between Earth Between Pole Loop Current Charging Current Line Charging Current Load Current Number of Current Switching No-load Switching Performance Rated Breaking Current Rated Transfer Current Rated Current for Fuse (Fuse-Mounting Type) Rated Control Voltage Rated Control Current Manual Operating...

Load Break Switches E3 Class HighPerformance New Model Product Type Operation Method Rated Voltage Rated Current Load Break Switches Fuse-Mounting Type Switch Class (IEC Standard) Rated Frequency Rated Short Time Withstand Current Rated Making Current Power Frequency Withstand Voltage Between Earth Between Pole Impulse Withstand Voltage Between Earth Between Pole Loop Current Charging Current Line Charging Current Load Current Number of Current Switching No-load Switching Performance Rated Breaking Current Rated Transfer Current Rated Current for Fuse (Fuse-Mounting Type) Rated Control Voltage...

Accessories Accessories Motor Driven Actuator It is used for remote ON-OFF control and the standard rated voltage is DC 110V. AC 110V/AC 220V are also possible when ordered. Motor Driven Actuator Remote Operating Cable Manual Remote Operating Device It is a device for manual operation at the panel door and it consists of a cable and a manual operating handle. Cable Length: Standard 2.0 m (Option 1.5/2.6m) Manual Operating Handle Auxiliary Contact It is a contact operated based on the operating status of the main contact of switch and it is used to display the status of the switch and to control...

Load Break Switches Rated Max. Breaking Current [kA] Rated Min. Breaking Current [A] Example of Fuse-Mounting Type LBS The circuit on the right is the power receiving method based on the standard connection diagram on the special medium-voltage, power-receiving equipment of regulated chapter 7, figure 7-3. The rated current of the power fuse is selected considering the capacity of power-receiving TR and protective coordination with the OCR. Especially, LBS of our company is equipped with a fuse-melting trip device that enables an automatic tripping of LBS when the 1-phase fuse is melted due to...

Installing Method & Structure Body of LBS Standard Type Fuse-Mounting Type Installation Circuit Diagram Vertical Installation Horizontal Installation * Check whether the mounting part is flat so that LBS is installed without a twist. Manual Operating Device * “------”parts are for the horizontal installation Cable The standard length is 2.0m and it can be manufactured in 1.5m/1.8m when ordered. T he cable operates smoothly if it maintains a sufficient curvature radius of R150 or above. I t is structured to operate ON-OFF manually using the cable in one direction (right-turn). U se it by fixing...

Load Break Switches Base Frame Support Insulator Load Terminal 4 rcing Blade A 5 ain Blade M 6 ine Terminal L 7 rc Nozzle A 8 Fixed Main Contact 9 ixed Support Insulator F 10 Operating Rod 11 Operating Mechanism 12 anual Operation Cable M 13 Geared Motor 14 Manual Handle 15 Support Insulator 16 Load Terminal 17 urrent limiting Fuse C 18 Fuse Trip Device 3 Load Break Switches