JesAir is the new, completely SF6-free medium voltage switchgear that combines reliability, safety, and sustainability. Designed to meet the requirements of EU Regulation 2024/573, the switchgear eliminates the use of fluorinated greenhouse gases, offering an environmentally friendly alternative that complies with European standards.
- Vacuum circuit breakers.
- Air-insulated earthing switches.
- Air-insulated rotary line disconnectors.
- Dry-air-insulated switch disconnectors.
Electrical and construction characteristics
| Rated Voltage | Ur [kV] | 24 |
| Rated Frequency | Fr [Hz] | 50 |
| Rated Power Frequency Withstand Voltageat 50Hz | Ud [kV] | 50 |
| Rated lightning impulse withstand vlt (1.2/50 µs) | Up [kV] | 125 |
| Rated thermal current of main busbars | Ir [A] | 630/800 |
| Rated short-time withstand current | Ik [kA/s] | 16/1 or 20/1 |
| Internal arc classification | IAC | Optional |
| Type of accessability | AFLR | Optional |
| Arc fault current / Duration | Ia [kA/s] | 16/1 or 20/1 |
| External degree of protection | IP | IP3X Escluse sedi di manovra |
| Internal degree of protection | IP | IP2X |
| Mechanical impact resistance | IK | 10 |
| AC auxiliary supply voltage | Vaux [V] | 220Vca |
| DC auxiliary supply voltage | Vaux [V] | 110Vcc |
| Minimum operating temperature | [°C] | -5 |
| Maximum operating temperature | [°C] | 40 |
| Paint color point | – | RAL 7035 |
Main features of the JesAir switchgear
- Wide range of functional units
- Modularity
- Arc-proof version (on request)
- Mechanical and electrical interlocks for maximum safety
- Compact and space-efficient
- Wall-mountable
- Easy installation and maintenance
- Product certifications, type testing, and acceptance testing.
Fields of application
The JesAir range of switchgears is used in secondary medium voltage electrical distribution and can be easily installed in transformer cabins to manage and protect power lines, measuring equipment, and transformers.
- Electricity supply systems
- Wind farms
- Photovoltaic systems
- Railway and subway systems
- Power plants
- Industry
- Ports, airports, hospitals, etc.
Standard references
The equipment complies with the following standards:
- CEI EN 62271-200
- IEC 62271-200
In particular, JESAIR switchgears can be classified as:
- Service Continuity: LSC2A
- Diaphragm Classification: PM
Internal arc: IAC AFLR (on request only)
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