| Equipment Classification |
Outdoor Vacuum Circuit Breaker |
| Phase / Pole Configurations |
1, 2, or 3 Phases |
| Actuating / Operating Drive |
Heavy-duty steel spring mechanism |
| Bushing / Insulator Material |
High-grade anti-tracking polymeric composite |
| Rated Operating Frequency |
50 / 60 Hz |
| Maximum Operating Altitude |
Up to 2000 m above sea level |
| Rated System Voltage |
126 kV |
| Arc-Quenching & Interrupter Medium |
Sealed vacuum bottle |
| Rated Continuous Operational Current |
3150 A / 4000 A (transformer capacity matched) |
| Power-Frequency Withstand Voltage (50 Hz / 1 min) |
230 kV (to earth) / 265 kV (across open contacts) |
| Lightning Impulse Withstand Voltage (BIL, 1.2/50 μs) |
550 kV (to earth) / 630 kV (across open contacts) |
| Rated Symmetrical Breaking Current |
31.5 kA / 40 kA |
| Rated Peak Short-Circuit Making Current |
85 kA / 100 kA |
| Total Closing / Making Duration |
≤50 ms |
| Total Tripping / Breaking Duration |
≤30 ms |
| Longitudinal Static Mechanical Load |
≥ 1000 N |
| Transverse Cross-Sectional Static Load |
≥ 700 N |
| Vertical Static Mechanical Load |
≥ 700 N |
| Total External Creepage Distance |
3970 mm |
| Standard Rated Operating Duty Cycle |
O-0.3s-CO-3 min-CO |
| Trip & Close Coil Control Supply Voltage |
48, 60, 72, 110, 220 V DC |
| Charging Motor Supply Voltage |
48, 60, 72, 110, 220 V DC |
| Drive Motor Power Rating |
600 W |
| Closing Coil Quantity & Consumption |
1 X Coil (400 W power rating) |
| Tripping Coil Quantity & Consumption |
2 X Coils (400 W power rating each) |
| Auxiliary Blocking Contacts (NO / NC) |
12 NO (12X) / 12 NC (12X) |
| Mechanical Switching Endurance |
10,000 operational cycles |
| Manual Open / Close Pushbuttons on Drive |
Integrated as standard (Yes) |
| Local / Remote Electrical Selector Switch |
Integrated as standard (Yes) |
| Control Cabinet Open / Close Buttons with LEDs |
Integrated as standard (Yes) |
| Overall Dimensions (H X L X W) |
5360 X (2480–4260) X 690 mm |
| Auxiliary Service Supply (Internal Heaters, Lighting) |
110, 220 V DC / V AC |
