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TJ340D VITJ 12/630D


TJ340D VITJ 12/630D


The company stands tall among the well-known Exporters and Suppliers of Vacuum Interrupter For Contactors in Muzaffarnagar (India). The Vacuum Interrupter For Contactors, offered by the company, has a long shelf life and high electrical endurance. The company provides a superior quality range of Vacuum Interrupter For Contactors with long electrical and mechanical life.

Electrical Ratings (3Phase) Symmetrical Basis
Rated Frequency 50/60Hz
Rated Maximum Line to Line Voltage 12kV,r.m.s
Rated Power Frequency Withstand Voltage : Air 42kV,r.m.s
Rated Impulse Withstand Voltage : Air 95kV,Peak
Rated Normal Current 630A
Maximum Contact Resistance at Minimum Closing Force 50Micro ohms
Limit Breaking Current 6.3kA
Rated Short-Time Withstand Current 6.3kA
Rated Making Current 6.3kA
Rated Breaking Current(Max/Min) 5kA/0.125kA
Rated Duration of Short Time Current 4s
Mechanical Data
Interrupter Weight(Approx.) 1.47kg
Moving Part Weight(Approx.) 0.49kg
Closing Force due to Bellow and Atmospheric 70±20N
Force Required to Hold Contacts open at Full Stroke100±30N
Mechanical Requirements (Ref. VC)
Contact Stroke 6±1 mm
Opening Speed(average of 75 contact gap) 0.7±0.3m/Sec
Closing Speed(average of last 30% contact gap)0.4±0.2m/Sec
Contact Bounce Duration at Closing Operation â¤3ms
Closing and Opening non-simultaneity of three-phase Contacts â¤1ms
Maximum Rebound during openingâ¤2mm
Rated Contact Compressive Force 120±10N
Life (Estimated)
Electrical Endurance AC-3 250,000 Operations
Electrical Endurance AC-4 100,000 Operations
Mechanical Life 300,000 Operations
Contact Erosion Limit 3mm
Shelf Life 20Years

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