Specifications

SLB series air or SF6 gas insulated Load break switches are manufactured comply with IEC 62271-102, IEC 60265 standards.
Stand–alone using of SLB series Load break switches are enough for switching, except, in case of failure, protection is needed.
SLB series Load break switches are used with correct fuses for transformer feeder applications.
Interlocking is comply with IEC 62271-200 standards. In case of wrong operation attempts perfect operation mechanism (open-closed-earthed) ensures a natural locking.
 Rated Voltage :12 ... 36 kV
 Power Frequency withstand voltage : 20 ... 70 kV
 Lightning Impulse withstand voltage : 60 ... 170 kV
 Rated Current : 630 A
 Short time withstand current : 16 / 20 kA
 Short circuit withstand time : 1 sec
 Mechanical Life : 1000 operation