QIHANG ZW32-12 12kV Three Phase Outdoor Vacuum Circuit Breaker

QIHANG ZW32-12 12kV Three Phase Outdoor Vacuum Circuit Breaker

The QIHANG ZW32-12 Outdoor Vacuum Circuit Breaker is designed for 12kV distribution systems, providing reliable protection and switching for substations, overhead lines, and utility power networks with durable outdoor performance.

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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