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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