ZW39 Outdoor HV AC Vacuum Circuit Breaker
ZW39 Vacuum Circuit Breaker is an eco-friendly outdoor high-voltage AC switching equipment featuring strong environmental adaptability, high reliability, and maintenance-free operation. Configurable with internal or external CT per user requirements. Suitable for high-voltage power transmission and distribution applications including substations, distribution networks, and railways.
Eco-friendly design
Superior environmental adaptability
Reliable mechanical performance
Excellent breaking performance
Features
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01
Eco-friendly design
Employs vacuum interrupter units with nitrogen or clean air as insulating medium. Fluorine-free solution with GWP value of 0.
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02
Superior environmental adaptability
Insulating medium eliminates low-temperature liquefaction risks. No exposed mechanical transmission components. Withstands harsh conditions including -50℃ extreme cold, high altitude, condensation, and ice coverage.
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03
Reliable mechanical performance
Adopts an integrated die-cast aluminum base spring operating mechanism. Compact structural design ensures stable output performance, high reliability, and maintenance-free operation. Mechanical life meets M2 class requirements.
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04
Excellent breaking performance
Full product series delivers breaking capacity up to 40kA, suitable for diverse complex operating conditions.
Technical Specifications
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Rated voltage（kV）
31.5, 40.5, 72.5, 145
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Rated frequency（Hz）
50/60
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First-pole-to-clear Factor
1.3/1.5
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Rated current(A)
Up to 3150
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Rated short-circuit breaking current(A)
Up to 40
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Rated short circuit making current (peak)(kA)
Up to 104
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Rated short-time withstand current(kA)
Up to 40
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Rated peak withstand current(kA)
Up to 104
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Rated short-time withstand current duration(s)
4
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Rated operating sequence
O-0.3s-CO-3min-CO
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Mechanical edurance(times)
10000
Tel : +86 （021）61610502
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