The QIHANG ZW32-12 Outdoor Vacuum Circuit Breaker is designed for reliable protection and control in medium-voltage distribution systems. Rated for 12kV applications, it is widely used in outdoor power networks, including substations, overhead lines, and utility distribution systems.
This circuit breaker utilizes advanced vacuum arc extinguishing technology, offering strong interrupting capability, long electrical life, and minimal maintenance requirements. It provides dependable overload and short-circuit protection, ensuring the safety of transformers, distribution lines, and electrical equipment.
With a robust outdoor design and stable mechanical performance, the ZW32-12 breaker is suitable for harsh environments such as high humidity, dust, and temperature variations. It supports automation and can be integrated into smart grid systems for improved power reliability and operational efficiency.
Key Features
• Rated voltage: 12kV
• Three-phase outdoor vacuum circuit breaker
• Advanced vacuum arc extinguishing technology
• Reliable overload and short-circuit protection
• Durable outdoor construction for harsh environments
• Long service life with low maintenance
• Supports automation and remote control
• Suitable for distribution and feeder protection
Typical Applications
• 10kV–12kV distribution networks
• Outdoor substations and overhead lines
• Utility power distribution systems
• Industrial electrical networks
• Smart grid and automation systems
Key Attributes
| Breaking Capacity | 20 kA, 31.5 kA, 40.5 kA | Phase | Three Phase |
| Rated Frequency | 50 Hz | Frequency | 50 Hz |
| Model Number | ZW32-12 | Place of Origin | Zhejiang, China |
| Brand Name | QIHANG | Type | Vacuum |
| Operation sequence | OC-0.3s-CO-180s-CO | Mechanical life | 10,000 times |
| Rated short-circuit breaking current | 20 kA | Rated peak withstand current | 63 kA |
| Contact stroke | 2 ± 0.5 mm | Protection | IP30 |
Packaging and Delivery
| Selling Units | Single item | Single package size | 90X95X125 cm |
| Single gross weight | 265.000 kg |
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