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ZW7-40.5 33kV-35kV High Voltage Vacuum Circuit Breaker
Short Description:
ZW7-40.5 33kV-35kV AC Three-Phase High Voltage Vacuum Circuit Breaker is an outdoor core switching device, featuring vacuum arc-extinguishing, compact three-phase common tank structure, high reliability and environmental protection. It is widely applied in 35kV power systems, substations, industrial and mining areas, new energy stations, with stable performance and easy maintenance, meeting global low-carbon and smart grid requirements.
Product Overview：ZW7-40.5 33kV-35kV AC Three-Phase High Voltage Vacuum Circuit Breaker is a core outdoor high-voltage switching device for 35kV grade. With vacuum as the arc-extinguishing medium and three-phase common tank structure, it has the advantages of strong breaking capacity, excellent insulation performance, no environmental pollution and convenient maintenance. It is widely used in 35kV power systems, substations, industrial and mining enterprises, new energy power stations, etc., combined with standardized client code to realize product traceability and efficient management.
Core Parameters Table（English）
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Parameter Items
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Specific Parameters
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Rated Voltage
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35kV (Maximum Working Voltage 40.5kV)
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Rated Current
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630A/1250A (Mainstream Specifications)
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Rated Frequency
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50Hz/60Hz (Optional)
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Arc-Extinguishing Medium
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Vacuum
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Insulation Medium
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SF6 Gas/Air (Optional)
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Operating Mechanism
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Type I: Manual Energy Storage Spring; Type II: Electric Energy Storage Spring (Support Remote Control/Reclosing)
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Mechanical Life
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10,000 Operations
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Protection Level
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IP67
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Ambient Temperature Adaptation Range
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-40℃~+60℃
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Applicable Altitude
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≤4000m
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Execution Standards
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GB 1984, GB/T 11022, IEC 62271-100
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Rated Short-Circuit Breaking Current
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25-31.5kA
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Rated Short-Time Withstand Current (4s)
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25-31.5kA
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Overall Weight
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≤350kg
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Installation Method
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Outdoor Pole-Mounted/Substation Installation
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