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TD311B VITD 12/630-12.5B

TD311B VITD 12/630-12.5B
Business Type Manufacturer, Exporter, Supplier, Retailer, Wholesaler

Preferred Buyer From

Location Anywhere in India

In search of the finest quality Vacuum Interrupter For Reclosers? Here is the perfect destination to look for the same. We are operating as a trusted Supplier and Exporter of quality tested Vacuum Interrupter For Reclosers. The Vacuum Interrupter For Recloser, which we provide, is appreciated for its high electrical endurance. The reason for the Vacuum Interrupter For Reclosers, offered by us, to be preferred for diverse applications is their high mechanical life.

Electrical Ratings (3Phase) Symmetrical Basis
Rated Frequency50/60Hz
Rated Maximum Line to Line Voltage13.8kV,r.m.s
Rated Power Frequency Withstand Voltage : Air50kV,r.m.s
Rated Impulse Withstand Voltage : Air125kV,Peak
Rated Normal Current560A
Rated Short- Circuit Current ( 3 Phase Symmetrical Basis)12.5kA,r.m.s
Percentage D.C. Component of Rated S.C. Breaking Current50.00%
Rated Short-Circuit Making Current31.25kA,Peak
Rated Duration of Short Time Current4s
Rated Short-Time Withstand Current12.5kA,r.m.s
Rated Peak Withstand Current31.25kA,r.m.s
*Maximum Contact Resistance at Minimum Closing Force20Micro ohms
*Rated Breaking Current of Single Capacitor Bank630A,r.m.s
*Rated Breaking Current of Back-to-Back Capacitor Bank400A,r.m.s
Rated operating sequenceo-0.3s-co-180s-co
Mechanical Data
Interrupter Weight (Approx.)1.31kg
Moving Part Weight (Approx.)0.49kg
Closing Force due to Bellow and Atmospheric80±40N
Force Required to Hold Contacts open at Full Stroke
Mechanical Requirements (Ref. Vcb)
Contact Stroke12±1 mm
Opening Speed (average of 75 contact gap)1.3±0.2m/Sec
Maximum Overtravel During Opening2mm
Maximun Rebound During Opening
Closing Speed (average of last 30% contact gap)0.8±0.2m/Sec
Maximum Contact Bounse Duration (with maximum 2 bounces)â¤2ms
Rated Contact Compressive Force1600±200N
Closing and Opening non-simultaneity of three-phase Contactsâ¤2ms
Life (Estimated)
Electrical Life at Rated Normal Current50,000 Operations
Electrical Life at Rated Short Circuit Current100 Operations
Mechanical Life50,000 Operations
Contact Erosion Limit3mm
Shelf Life20Years

  • 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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