VS1-12/630A-25KA side-mounted indoor high voltage vacuum circuit breaker
Product Introduction
Product name: VS1-12 side-mounted indoor vacuum circuit breaker
Category: high voltage components
Product introduction: VS1-12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear. It is suitable for three-phase power systems with a rated voltage of 12 dry volts and a frequency of 50 Hz. It is used as a protection and control appliance. It is especially suitable for places that require frequent operation under rated current or multiple interruption of short-circuit current.
Overview of VS1-12 side-mounted indoor vacuum circuit breaker
VS1-12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear. It is suitable for three-phase power systems with a rated voltage of 12 dry volts and a frequency of 50 Hz. It is used as a protection and control appliance. Due to the special nature of the vacuum circuit breaker, it is especially It is suitable for places that require frequent operation under rated current, or break short-circuit current many times.
VS1-12 case-mounted vacuum circuit breaker adopts fixed installation and is mainly used for fixed switchgear. The interrupter can be used alone, but also can be used for ring network power supply, box-type substation or various non-standard power supply systems.
The main technical parameters
| Serial number | project | unit | data |
| 1 | Rated voltage | KV | 12 |
| 3 | Rated current | A | 630~1250 | 1250 | 1250 |
| 4 | Rated short-circuit breaking current | KA | 20 | 25 | 31.5 |
| 5 | Rated short-circuit making current | KA | 50 | 63 | 80 |
| 6 | Rated peak withstand current | KA | 50 | 63 | 80 |
| 7 | 4S rated short-circuit withstand current | KA | 20 | 25 | 31.5 |
| 8 | Rated absolute
Edge level | Power frequency withstand voltage (before and after rated breaking) | KV | 42 (fracture 48) |
| Impact withstand voltage (before and after rated breaking) | 75 (fracture 85) |
| 9 | Rated operating sequence | | Points-0.3S-Combined points-180S-Combined points |
| 10 | Mechanical life | 次 | 10000 |
| 11 | Rated short-circuit breaking current breaking times | 次 | 50 |
| 12 | Operating mechanism rated closing voltage (DC) | V | 110,220 |
| 13 | Rated opening voltage of operating mechanism (DC) | V | 110,200 |
| 14 | Contact opening distance | mm | 11±1 |
| 15 | Overtravel (compressed length of contact spring) | mm | 3.5±0.5 |
| 16 | Three-phase opening and closing bounce time | ms | ≤2 |
| 17 | Head closing bounce time | ms | ≤2 |
| 18 | Average opening speed | m/s | 1.1±0.2 |
| 19 | Average closing speed | m/s | 0.6±0.2 |
| 20 | Open
time | Under the highest operating voltage | S | ≤0.05 |
| Under the lowest operating voltage | ≤0.08 |
| 21 | Closing time | S | 0.1 |
| | Main circuit resistance of each phase | | 60 | | 50 |
| 23 | Dynamic and static contact allow wear and accumulation of thickness | mm | 3 |
Shape and installation dimensions
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