ZW32-40.5 Vacuum Circuit Breaker
2.Rated Current:630A
3.Frequency:50Hz
4.Can be equipped with an isolation switch
5.Compact design with high-quality steel enclosure.
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
1.ZW32-40.5 Vacuum Circuit Breaker: Reliable Power Protection for Modern Grids
The ZW32-40.5 Vacuum Circuit Breaker is engineered to deliver unmatched performance in medium-voltage power distribution systems. Designed for outdoor applications, this breaker combines a compact steel enclosure with advanced vacuum interruption technology, ensuring reliable fault protection under 12-40.5 kV conditions. Whether you’re upgrading substations or securing industrial power networks, the ZW32-40.5 offers IEC-compliant safety, low maintenance costs, and seamless integration with smart grid systems.
2.Technical Specifications
- Rated Voltage: 12kV (40.5kV max)
- Rated Current: 630A
- Frequency: 50Hz
- Breaking Capacity: ≥25kA
- Mechanical Life: 10,000+ operations
- Operating Temperature: -40°C to +60°C
- Enclosure: IP67-rated steel housing
| No. | Items | Unit | Parameters |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated current | A | 630 |
| 3 | Power frequency withstand voltage (Imin) | kV | 42 |
| 4 | Lightning impulse withstand voltage | kV | 75 |
| 5 | Rated short-circuit breaking current | KA | 12.5.16, 20 |
| 6 | Rated short circuit closing current (peak) | KA | 31.5,40,50 |
| 7 | Rated peak withstand current | KA | 31.5,40,50 |
| 8 | Rated short-circuit withstand current 4s | KA | 12.5,16,20 |
| 9 | Rated operating sequence | O-0.3s-CO-180s-CO | |
| 10 | The number of times the rated short circuit current is broken | Ops | 30 |
| 11 | Mechanical life | Ops | 10000 |
| 12 | Rated voltage of energy storage motor | V | DC/AC220,110,DC24 |
| 13 | Rated operating voltage (With special springs operating mechanism | V | DC/AC220,110,DC24 |
| 14 | Over-current Rated current of the trip device | A | 5 |
| 15 | Allowable wear thickness of dynamic and static contacts | mm | 3 |
| 16 | weight | kg | 80,95(Shuttered Fuse) |
| 17 | Center distance between electrodes | mm | 340+/-1.5 |
3.Key Features & Benefits
1. Rugged & Space-Saving Design
The ZW32-40.5’s compact footprint simplifies installation in crowded substations or remote renewable energy sites. Its corrosion-resistant steel body withstands harsh environments like mining sites or coastal regions.
2. Modular Spring Mechanism
A modular spring-operated system ensures rapid fault interruption (<50ms) while reducing downtime during maintenance. This design also supports hybrid manual/remote operation for flexibility.
3. Enhanced Safety & Compliance
Certified under IEC 62271-100 and IEEE C37.04 standards, this vacuum circuit breaker eliminates SF6 gas emissions, aligning with global sustainability goals.
4. Smart-Grid Ready
Optional IoT sensors enable real-time monitoring of parameters like temperature and load, making it ideal for solar/wind farms requiring predictive maintenance.
4.Applications
Be used in a wide range of industries.
Industrial Plants
Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.
Substation
Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.
Commercial Buildings
Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.
5.Manufacturing & Quality Assurance
Every ZW32-40.5 Vacuum Circuit Breaker unit undergoes 23 rigorous tests, including:
- Dielectric Strength Tests: 80kV/1min withstand voltage.
- Mechanical Endurance: Simulated 10,000 operations under load.
- Environmental Stress: Validated performance in -40°C to +85°C chambers.
Our ISO 9001-certified facility uses robotic welding and AI-powered inspection systems to guarantee batch consistency.
6.Why Choose Us?
- 40+ Patents in vacuum interruption technology.
- Vertical Integration: In-house production of critical components (contacts, springs).
- 24/7 Technical Support: On-site training and spare parts logistics.
- Certifications: ISO 9001, ISO 14001, 3C, and IECEx/ATEX compliance.
7.FAQs
1. How does the ZW32-40.5 handle extreme cold or heat?
The breaker’s stainless steel hardware and low-temperature lubricants ensure stable operation from -40°C to +60°C.
2. Can it integrate with existing SCADA systems?
Yes, optional RTU modules enable seamless communication with most SCADA/DCS platforms.
3. What’s the typical lead time for bulk orders?
Standard orders ship in 6-8 weeks. Expedited production is available for urgent projects.
4. How often should I inspect the breaker?
Annual visual checks and a full diagnostic every 5 years are recommended.
8.Contact Us
Need a ZW32-40.5 Vacuum Circuit Breaker customized solution? Email our engineers at xaxd_electric@163.com for a same-day response.
9.Factory Show
10.Equipment Display
11.Application Cases
State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors
12.Team and Exhibition
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