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Product Name: TJA30 Vacuum Interrupter Hit: 1380 Category name: Vacuum Interrupter Model: VITJ 400/250A [Back]
Product Description
| ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS | |
| 1.Rated Frequency | 50/60Hz |
| 2.Rated Maximum Line to Line Voltage | 0.4kV,r.m.s |
| 3.Rated Power Frequency Withstand Voltage:Air | 0.25kV,r.m.s |
| 4.Rated Impulse Withstand Voltage:Air | 6kV,Peak |
| 5.Rated Normal Current | 400A |
| 6.Maximum Contact Resistance at Minimum Closing Force | 35Micro ohms |
| 7.Rated Making Current | 5kA |
| 8.Rated Breaking Current | 5kA |
| 9.Rated Breaking Current(Max) | 5kA |
| 10.Rated Breaking Current(Min) | 125A |
| 11.Rated Short-Time Withstand Current | 5kA |
| 12.Rated Duration of Short Time Current | 4s |
| MECHANICAL DATA | |
| 1.Interrupter Weight(Approx.) | 1.34kg |
| 2.Moving Part Weight(Approx.) | 0.47kg |
| 3.Closing Force due to Bellow and Atmospheric | 50±10N |
| 4.Force Required to Hold Contacts open at Full Stroke | 70±10N |
| MECHANICAL REQUIREMENTS(REF. VC) | |
| 1.Contact Stroke | 1.2±0.1 mm |
| 2.Opening Speed(average of 75 contact gap) | 0.5±0.1m/Sec |
| 3.Closing Speed(average of last 30% contact gap) | 0.2±0.05m/Sec |
| 4.Contact Bounce Duration at Closing Operation | ≤3ms |
| 5.Closing and Opening non-simultaneity of three-phase Contacts | ≤1ms |
| 6.Maximum Rebound during opening | ≤2mm |
| 7.Rated Contact Compressive Force | 110±10N |
| LIFE (ESTIMATED) | |
| 1.Electrical Endurance AC-3 | 1000,000Operations |
| 2.Electrical Endurance AC-4 | 1000,000Operations |
| 3.Mechanical Life | 1000,000Operations |
| 4.Contact Erosion Limit | 3mm |
| 5.Shelf Life | 20Years |
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