Molded Case Circuit Breaker
    Magnetic Contactor
    Air Circuit Breaker
    Vacuum Circuit Breaker
        HVG Series
        HAF Series
        HVF Series
    Vacuum Contactor
    Vacuum Interrupter
 
Compact Size
¡¤ The Hyundai HAF & HVF Vacuum Circuit Breaker's superiority lies in its compact size, weight, and quiet low vibrating operation, along with its reliability.
Maintenance - Free
¡¤ The circuit breakers require little maintenance. This could be carried out by the customers' personnel with short servicing time and corresponding downtime and also long operation period between services.
Greatly Extended Service Lifetime
¡¤ Rugged in construction with minimum number of moving parts, the Hyundai HAF & HVF Vacuum Circuit Breaker operating mechanism features reduced maintenance requirements, providing a long life expectancy of 30,000 operations.
Because of the small amount of contact erosion, contact life is increased to 20,000 operations for the rated normal current.
 
Application for HVF/HAF Type
2nd Shunt Release with Attachment
¡¤ 2nd shunt releases are used to open the circuit breaker automatically with appropriate protective relays or by deliberate electrical or mechanical action. They are designed for connection to external voltage (AC or DC) ; However, in special cases they may also be connected to voltage transformer.
Undervoltage Release with Attachment
¡¤ Undervoltage releases are used to open the circuit breaker automatically in the event that the operating voltage drops below a specified level.
- Pick up : 75 ~ 85% of rated voltage
- Drop-out : 35 ~ 60% of rated voltage
Electrical Lockout with Attachment
¡¤




The lockout relay is an electromagnetic device actuated by DC or AC voltage for the voltage independent interlocking of switching devices.
- Pick up : Over 85% of rated voltage
- Drop-out : Below 60% of rated voltage
- Capacity : 25W(DC) / 25VA(AC)
Cut-out Switch
¡¤ This unit sends signal for the alarm when the circuit breaker is tripped.
Charging Signal for Tripping
¡¤ The charging status of closing spring will be indicated by the installation of limit switch.
Application for HVG/HVF/HAF Type
Vacuum Checker
¡¤ The portable vacuum checker can be used for checking the vacuum degree.
Rated input voltage : AC220V
Rated output voltage : AC11kV / 22kV
Dimension : W200 x L350 x H176
Capacitor Trip Device
¡¤ It is recommended that the capacitor trip unit is to be employed for a trip operation of the breaker when the control source is lost in the AC control system.
Rated input voltage : AC110V, AC220V
Rated output voltage : DC145V, DC 290V
Varistor Module
¡¤ When the motor, solenoid and shunt releases are switched in DC circuits, it is possible for surges to be produced which might cause great damage to solid-state devices.
By additionally connecting the varistor module to the motor and solenoid, the damage can be effectively eliminated.
 
¡¤ ISO9001 certificate
 
Catalog
Certificate