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TD269J VITD 7.2/3150-60J

TD269J VITD 7.2/3150-60J

Clients can avail from us Vacuum Interrupter For Circuit Breaker. The Vacuum Interrupter For Circuit Breaker that we offer is designed in compliance with the industry set norms. The Vacuum Interrupter For Circuit Breaker is made available at affordable price.

Electrical Ratings(3Phase) Symmetrical Basis
Rated Frequency 50/60Hz
Rated Maximum Line to Line Voltage 7.2kV,r.m.s
Rated Power Frequency Withstand Voltage:Air 28kV,r.m.s
Rated Impulse Withstand Voltage:Air 60kV,Peak
Rated Normal Current 3150A
Rated Short- Circuit Current ( 3 Phase Symmetrical Basis) 60kA,r.m.s
Percentage D.C. Component of Rated S.C. Breaking Current
Rated Short-Circuit Making Current 130kA,Peak
Rated Duration of Short Time Current 4s
Rated Short-Time Withstand Current 60kA,r.m.s
Rated Peak Withstand Current 130kA,r.m.s
*Maximum Contact Resistance at Minimum Closing Force 18Micro ohms
*Rated Breaking Current of Single Capacitor Bank 630A,r.m.s
*Rated Breaking Current of Back-to-Back Capacitor Bank 400A,r.m.s
Rated operating sequence o-0.3s-co-180s-co
Mechanical Data
Interrupter Weight(Approx.) 6.46kg
Moving Part Weight(Approx.) 2.2kg
Closing Force due to Bellow and Atmospheric 120±50N
Force Required to Hold Contacts open at Full Stroke 190±60N
Mechanical Requirements (Ref. Vcb)
Contact Stroke 11±1 mm
Opening Speed(average of 75 contact gap) 1.2±0.2m/Sec
Maximum Overtravel During Opening 2mm
Maximun Rebound During Opening 2mm
Closing Speed(average of last 30% contact gap) 0.9±0.2m/Sec
Maximum Contact Bounse Duration(with maximum 2 bounces) ≤2ms
Rated Contact Compressive Force 4200±200N
Closing and Opening non-simultaneity of three-phase Contacts ≤2ms
Life (Estimated)
Electrical Life at Rated Normal Current 20,000 Operations
Electrical Life at Rated Short Circuit Current 100 Operations
Mechanical Life 20,000 Operations
Contact Erosion Limit 3mm
Shelf Life 20Years

  • 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

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