The JN15-12 indoor high voltage grounding switch is designed for 12kV power systems, ensuring safe grounding for high voltage equipment. It has a rated current of 12 kA, with a rated short-time withstand current of 31.5 kA and can withstand a short-circuit making current of 80 kA. The rated short-circuit duration is 4 seconds, allowing it to function effectively in short-circuit conditions and preventing electrical accidents. The switch has a rated insulation level of 42 kV power frequency withstand voltage and 75 kV lightning impulse withstand voltage, ensuring safety and reliability in high-voltage environments. It is suitable for various high-voltage switchgear, busbars, and other distribution equipment, widely used in power substations and electrical systems.
| Type | JN15-12 |
| Rated Current | 12kA |
| Rated Short-Time Withstand Current | 31.5kA |
| Rated Short-Circuit Duration | 4 S |
| Rated Short-Circuit Making Current | 80 kA |
| Rated Peak Withstand Current | 80 kA |
| Phase-to-Phase Center Distance | 210mm, 230mm, 250mm, 275mm |
| Rated Insulation Level - 1min Power Frequency Withstand Voltage | 42kV |
| Rated Insulation Level - Lightning Impulse Withstand Voltage | 75kV |
