We are counted among the most authentic Suppliers and Exporters of Vacuum Interrupter For Load Breaking Switches based in Muzaffarnagar (Uttar Pradesh). The Vacuum Interrupter For Load Breaking Switches, we offer, are preferred due to their high mechanical life. Being sourced from the credible vendors of the market, the Vacuum Interrupter For Load Breaking Switches are assured of their fabrication that comes with a promise of high shelf life.

Electrical Ratings (3Phase) Symmetrical Basis
Rated frequency	50/60Hz
Rated Voltage	12kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min)	42kV,r.m.s
Rated lightning impulse withstand voltage	85kV,Peak
Rated Current	630A
Maximum Contact Resistance at Minimum Closing Force	â‰Â¤35Micro ohms
Rated short-time withstand current	25kA,r.m.s
Rated duration of short-circuit	1s
Rated peak withstand current	63kA,r.m.s
Rated short-circuit making Current	25kA,r.m.s
Rated active load breaking current	630A
Rated closed-loop breaking current	630A
Rated capacity of no-load transformer	10A
Rated cable-charging breaking current	10A
Rated line charging breaking current	1A
Rated earth fault breaking current	30A
Rated cable and line charging breaking current under earth fault condition	17.3A
*Rated breaking current of single capacitor bank	400A
*Rated breaking current of back-to-back capacitor bank	400A
Mechanical Data
Interrupter Weight(Approx.)	1.18kg
Weight of movable parts	0.58kg
Closing force due to bellow and atmosphere	60±30N
Force required to hold contacts open at full stroke	130±40N
Mechanical Requirements (Ref. Lbs)
Clearance between open contacts	9±1mm
Average opening speed(average of first 75% of contact gap)	1.0±0.2m/s
Average closing speed(average of last 30% of contact gap)	0.6±0.2m/s
Rated added external contact final force	1000±100N
Contact bouncing duration at closing operation	â‰Â¤2ms
Closing and Opening non-simultaneity of three-phase Contacts	â‰Â¤2ms
Maximum Rebound during opening	â‰Â¤2ms
Life
Storage life	20years
Mechanical endurance	10000 Operations
Contacts limit erosion	3mm

Note

• Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008.
• * Rated Characteristics to be given on request"