| Customization: | Available |
|---|---|
| Transport Package: | Fumigation Wooden Box |
| Trademark: | YQALT |
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FN12 Series Indoor Load Breaker Switch
Product Overview:
The ZW7-40.5 outdoor high voltage vacuum circuit breaker is designed for use in AC three-phase power systems with a frequency of 50Hz and a voltage rating of 40.5kV. It is specifically engineered for the efficient breaking and closing of load currents, overload currents, and short-circuit currents within power distribution systems.
Key Features:
• High Performance: The ZW7-40.5 circuit breaker is capable of handling significant current fluctuations, ensuring stability and safety in high-voltage networks.
• Durable Design: Built to withstand outdoor environments, the circuit breaker is designed with materials and technologies that provide long-term reliability, even under harsh weather conditions.
• Advanced Arc Extinguishing: The vacuum interrupter technology used in this breaker provides superior arc extinguishing capabilities, enhancing safety and operational efficiency.
Application Areas:
This circuit breaker is ideal for installation in power distribution networks in industrial and utility settings, including substations and large-scale power systems, where reliable load management and fault protection are critical.
Installation and Maintenance:
The ZW7-40.5 is designed for easy installation and minimal maintenance, making it a cost-effective solution for high-voltage power systems. Its robust construction ensures a long service life with low maintenance requirements, even in challenging environmental conditions.
| Technical Specification | ||||
| Rated voltage | kV | 12 | 24 | 36 |
| Rated current | A | 630 | 630 | 630 |
| Rated power frequency | Hz | 50/60 | 50/60 | 50/60 |
| Short circuit making capacity | kA Peak. | 67 | 50 | 50/60 |
| Peak withstand current | kA Peak. | 82 | 82 | 66 |
| Short time current | kA eff. | |||
| 1Sec. | 31.5 | 31.5 | ||
| 2Sec. | 25 | 25 | 25 | |
| 3Sec. | 20 | 16 | ||
| Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11) | A | 1600 | 900 | 300 |
| Max. fuse current(XRNT Fuse) | A | 125 | 80 | 40 |
| Power frequency withstand voltage 50Hz1 min,: | ||||
| To earth and between poles | kV | 42 | 55 | 95 |
| Across isolating distance | kV | 45 | 70 | 120 |
| Impulse withstand voltage 1.2/50μs: | ||||
| To earth and between poles | kV | 75 | 125 | 190 |
| Across isolating distance | kV | 85 | 145 | 220 |
| Mechanism Endurance | cycles | 2000 | 2000 | 2000 |
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