ZW32-12 0utdoor HV Vacuum Circuit Breaker
ZW32-12 type outdoor high voltage circuit breaker is used for three-phase powersystem of AC 50Hz and voltage 10-12KV, to make and break the load current, it has theoverload and short-circuit protection, meeting the reguirements of control andmeasurement, it also can realize the remoter control and monitor. lt is suitable for thecontrol and protection of distribution system in the transformer substation and industriaand mining enterprise or in the location which needs the frequent operation at rurapower grid.
Specification Parameter
| Item | Unit | Parameter | |||
| Rated voltage | kV | 12 | |||
| Thunder impulse withstand voltage(peak) | kV | 12 | |||
| Rated insulation level | Power frequency withstand voltage | Dry test | kV | 42 | |
| Wet test | kV | 34 | |||
| Power frequency withstand voltage(peak) | kV | 75 | |||
| Rated current | A | 630;400;200 | |||
| Rated short circuit dropout current | kA | 20;16;12.5 | |||
| Rated operating sequence | O-0.3s-CO-180s-CO | ||||
| Open circuittimes of rated short circuitdropout current | times | 30 | |||
| Rated short circuit close current(park) | kA | 50 | |||
| Rated peak withstand current | kA | 50 | |||
| Rated short current withstand current | kA | 20 | |||
| Rated short-circuit duration | s | 4 | |||
| Opening time | At max operating voltage | ms | 15-50 | ||
| Rated operating voltage | ms | 15-50 | |||
| At min operating voltage | ms | 30-60 | |||
| Closing time | ms | 25-50 | |||
| Full-breaking time | ms | ≤100 | |||
| Arcing time | ms | ≤20 | |||
| Mechanical life | times | 10000 | |||
| Rated input power of energy-storage motor | w | 40 | |||
| Rated operating voltage and auxiliary circuit | V | DC220,110,24 | |||
| Rated voltage | V | AC220,110,24 | |||
| Energy-storage time at rated voltage | s | ≤10 | |||
| Over-current release | Rated current | A | 5 | ||
| Accuracy of tripping current | % | 10 | |||
Product Advantage
1. High Reliability – Permanent magnet or spring mechanisms ensure long service life (up to 100,000 operations).
2. Durability – Sealed, corrosion-resistant design for harsh environments (-40°C to +40°C).
3. Smart Features – Supports fault detection, auto-reclosing, and remote monitoring (FTU/GPRS).
4. Compact & Lightweight – Easy pole-mounted installation with a three-pillar structure.
5. Low Maintenance – Oil-free, SF6-free, and fully sealed for minimal upkeep.
6. Safety – Optional visible isolating switches with mechanical interlocking.
Outline And Mounting Dimensions
