The KYN58A-27.5 outdoor vacuum circuit breaker is handcart-type switchgear commonly used in railway electrification systems. Its rated voltage reaches 27.5kV.
Features
1. Max. rated current: 2500A, Rated short-circuit current: 31.5kA, Rated short-circuit current: 80kA
2. The modular cabinet consists of aluminum-zinc coated plates and cold-rolled steel sheets which results in high strength and an aesthetically pleasing exterior.
3. The floor type handcart circuit breaker operates with screw feeding system, which helps to move the handcart easily and prevent unexpected damage caused by misoperation.
4. Those assembled cabinets can be operated after doors are closed. The front and rear of the cabinet are both provided with observation windows, which allows for easy view of the circuit breaker and rear chamber.
5. The switchgear is IP40 rated to ensure high reliability and good sealing performance. It secures the equipment and human beings.
6. Reliable compound insulation
7. The busbar has been chamfered to avoid point discharge.
8. The circuit breaker can work normally at an altitude of less than 2,000m. It can be widely used in coastal or humid regions.
| Rated voltage | 27.5KV |
| Rated current | 2500A |
| Short-circuit breaking current | 31.5kA |
| Short-circuit breaking capacity | 50 times |
| Insulation level | 95/185 |
| Mechanical life | 10000 or 30000 times |
| Altitude | 4000 m |
| Temperature | -40 ℃ - +40 ℃ |
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