SION 3AE8 — compact vacuum circuit breaker with embedded poles 12/24/40.5 kV, up to 50 kA, 5000 A
SION 3AE8 is a medium-voltage vacuum circuit breaker for 12, 24 and 40.5 kV with a breaking current of up to 50 kA and a rated current of up to 5000 A. The poles are fully encapsulated in epoxy resin. The breaker complies with IEC 62271-100 and GB 1984 and is installed in primary distribution switchgear.
- Rated voltage
- 12, 24 and 40.5 kV
- Breaking current
- up to 50 kA
- Rated current
- up to 5000 A
- Endurance
- up to 30,000 operations (maintenance every 10,000)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
SION 3AE8 belongs to the SION platform and combines compact dimensions with high ratings. According to the manufacturer, it embodies 40 years of experience in vacuum switching. Rated voltages are 12, 24 and 40.5 kV, breaking current up to 50 kA, rated current up to 5000 A. Endurance reaches 30,000 operations with maintenance every 10,000 cycles.
The breaker complies with both the international standard IEC 62271-100 and the Chinese GB 1984, so it can be specified in projects for different markets under a single specification. Breaker classes are C2 (capacitive switching with a very low probability of restrikes), E2 (extended electrical endurance), M2 (mechanical endurance) and S1.
The poles are fully encapsulated in epoxy resin (embedded poles). The vacuum interrupter and current-carrying parts lie in cast insulation, which increases dielectric strength and allows safe operation with full insulation in harsh conditions, under pollution, humidity and condensation. The compact design and adjustable pole spacings simplify building the breaker into various types of switchgear. High insulation strength and vacuum interrupters reduce the risk of damage, and long endurance reduces the number of unplanned outages.
For critical sites, a smart version of SION 3AE8 is offered with a comprehensive condition diagnostics system based on built-in sensors and IoT technologies. Applications include 10 and 35 kV primary distribution switchgear of utility substations, industry, power plants and renewables, where a compact breaker for high currents is required.
Technical specifications
| Rated voltage | 12, 24 and 40.5 kV |
|---|---|
| Breaking current | up to 50 kA |
| Rated current | up to 5000 A |
| Endurance | up to 30,000 operations (maintenance every 10,000) |
| Poles | fully encapsulated in epoxy compound (embedded poles) |
| Classes | C2, E2, M2, S1 |
| Standards | IEC 62271-100, GB 1984 |
| Option | smart SION 3AE8 with a diagnostics system and IoT sensors |
Request a price and lead time
SION 3AE8 — compact vacuum circuit breaker with embedded poles 12/24/40.5 kV, up to 50 kA, 5000 A. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What voltages and currents is the SION 3AE8 rated for?
Rated voltages 12, 24 and 40.5 kV, breaking current up to 50 kA and rated current up to 5000 A.
Which standards and classes does the SION 3AE8 have?
The breaker complies with IEC 62271-100 and GB 1984. Classes C2, E2, M2 and S1.
What is the endurance and maintenance of the SION 3AE8?
Endurance is up to 30,000 operations, with maintenance every 10,000 cycles.
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