The XGN66-12 Fixed AC Metal-Enclosed Switchgear is designed for 3.6–12kV three-phase AC 50Hz systems. It is used for receiving and distributing electrical energy and is suitable for applications requiring frequent operation as well as the retrofit of switchgear equipped with oil switches. The switchgear supports both single busbar and single busbar sectionalized systems to meet different power distribution requirements.
Reliable Power Distribution:Designed for receiving and distributing electrical energy in 3.6–12kV three-phase AC 50Hz systems.
Flexible Busbar Arrangement:Supports both single busbar and single busbar sectionalized configurations to suit different distribution system designs.
Indoor Installation: Suitable for indoor installation at altitudes up to 1000m, with an ambient temperature range of -15°C to +40°C.
Vacuum Switching Technology: The NZ63-12 vacuum circuit breaker provides a mechanical life of 10,000 operations and supports rated short-circuit breaking currents up to 31.5kA.
| Rated Voltage | 3.6 / 7.2 / 12 kV |
| Rated Frequency | 50 Hz |
| Rated Current | 630 A / 1250 A |
| Rated Short-Circuit Breaking Current | 20 / 25 / 31.5 kA |
| Rated Short-Circuit Closing Current (Peak) | 50 / 63 / 80 kA |
| Rated Short-Time Withstand Current (4 s) | 20 / 25 / 31.5 kA |
| Rated Peak Withstand Current | 50 / 63 / 80 kA |
| Protection Degree | IP2X |
| Busbar Configuration | Single Busbar / Single Busbar Sectionalized |
| External Dimensions (W × D × H) | 900 × 1000 × 2300 mm |
| Mechanical Life (Vacuum Circuit Breaker) | 10,000 Operations |
| Applicable Standards | GB3906-2006, IEC 60298, GB/T 11022-2011 |