The 24kV side-mounted vacuum circuit breaker (with VGS spring operating mechanism) is a highly efficient and safe power protection device designed for medium to high-voltage networks, featuring excellent insulation properties and breaking capacity.
Features
Application Environment
Ideal for urban distribution, industrial power systems, and renewable energy integration, operating effectively in harsh conditions.
Main technical data
| S/N | Item | Unit | Data | ||||
| * | Type | / | 口Insulating cylinder
口Epoxy resin embedded poles 口Nylon embedded poles |
口Upper outlet
口Side outlet |
|||
| 1 | Rated voltage |
KV |
24 | ||||
| 2 | Rated short time power frequency withstand voltage(a min) | 65 | |||||
| 3 | Rated lightning impulse withstand voltage(peak) | 125 | |||||
| 4 | Rated frequency | Hz | 50 | ||||
| 5 | Rated current | A | 630
1250 |
630
1250
|
|||
| 6 | Rated short-circuit breaking circuit |
kA |
25 | 31.5 | |||
| 7 | Rated short time withstand current | 25 | 31.5 | ||||
| 8 | Rated short-circuit duration | s | 4 | ||||
| 9 | Rated peak withstand voltage |
kA |
63 | 80 | |||
| 10 | Rated short-circuit closing current | 63 | 80 | ||||
| 11 | Power frequency withstand voltage of secondary circuit(1 min) | V | 2000 | ||||
| 12 | Rated single / back-to-back capacitor bank breaking current | A | 630/400 | ||||
| 13 | Switching time |
ms |
20-50 | ||||
| 14 | Closing time | 35-70 | |||||
| 15 | Mechanical life |
time |
M2 level
10000(630-125-/25-31.5) |
||||
| 16 | Electrical life | E2 level | |||||
| 17 | Moving and fixed contacts allow wear accumulation thickness | mm | 3 | ||||
| 18 | Rated closing operating voltage | V | AC110、AC220
DC110、DC220 |
||||
| 19 | Rated breaking operating voltage | ||||||
| 20 | Rated voltage of energy storage motor | ||||||
| 21 | Rated power of energy storage motor | w | 90 | ||||
| 22 | Storage time | s | ≤15 | ||||
| 23 | Contact distance | mm | 13±1 | ||||
| 24 | Over stroke | 3±1 | |||||
| 25 | Contact closing bounce time |
ms |
≤2 | ||||
| 26 | Different phases of three-phase switching | ≤2 | |||||
| 27 | Average breaking speed |
M/s |
Contact opening 6mm | 0.9~1.7 | 0.9~1.7 | ||
| 28 | Average closing speed | Contact closing 6 mm | 0.6~1.0 | 0.6~1.0 | |||
| 29 | Switching rebound amplitude | mm | ≤3 | ||||
| 30 | Dominant loop resistance | μΩ | ≤45(630)
≤35(1250A) |
||||
| 31 | Contact closing pressure | N | 3100~3700 | ||||
| 32 | Rated order of operation | O-0.3s-CO-180s-CO | |||||
Side-mounted Circuit Breaker Outline Dimension Drawing Reference
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