ZW7-40.5F(M) Outdoor High Voltage Intelligent (Permanent Magnet) Vacuum Circuit Breaker
ZW7-40.5F(M) Outdoor High Voltage Intelligent (Permanent Magnet) Vacuum Circuit Breaker is a 40.5kV outdoor switching device designed for reliable protection and control in medium-voltage overhead power networks. Featuring a split-column structure and advanced vacuum interruption technology, it provides efficient arc extinction, stable fault interruption, and dependable operation under demanding outdoor conditions.
Equipped with an intelligent control system and optional permanent magnet operating mechanism, the ZW7-40.5F(M) offers fast response, precise switching control, and reduced maintenance requirements. It is widely used in overhead distribution lines, substations, industrial power systems, and applications requiring frequent operation, high reliability, and long service life.
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The ZW7-40.5F(M) Outdoor High-Voltage Intelligent Vacuum Circuit Breaker is a 40.5kV switching device designed for reliable protection and control in outdoor medium-voltage power networks. Featuring a split-column structure and advanced spring or permanent magnet operating mechanism options, it provides stable switching performance for load currents, overload conditions, and short-circuit faults.
With intelligent control capability, durable outdoor construction, and low-maintenance operation, the ZW7-40.5F(M) is suitable for overhead distribution lines, substations, and industrial power systems requiring high reliability, frequent operation capability, and long service life. The permanent magnet version further improves operational efficiency with precise control and reduced maintenance requirements.
Technical Data
| Item | Unit | Parameter | |
| Rated Voltage | kV | 40.5 | |
| Rated Current | A | 1250 / 1600 | |
| Rated Frequency | Hz | 50/60 | |
| Rated Short Circuit Breaking Current | kA | 25 / 31.5 | |
| Rated Short-Circuit Closing Current (peak) | 63 / 80 | ||
| Rated Peak Withstand Current | 63 / 80 | ||
| Rated Short-Time Withstand Current (4s) | 25 / 31.5 | ||
| Rated Industrial Frequency Withstand Voltage(1min) | Phase-to-Phase | kV | 95 |
| To Ground | 185 | ||
| Rated Lightning Impulse Withstand Current(Peak) | Phase-to-Phase | kA | 185 |
| To Ground | 185 | ||
| Rated Operating Sequence | / | O-0.1s-CO-3s-CO-6sCO-60s | |
| Mechanical life | Times | 10000 | |
| Rated Short-Circuit Current Breaking Times | 30 | ||
| Mechanism Control Voltage | V | AC/DC220 | |
| Secondary Circuit 1min Frequency Withstand Voltage | kV | 2 | |
Overall and mounting dimensions(mm)
