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Home Product VB 40.5-N7X9-x High Voltage Vacuum Circuit Breaker, 40.5kV Switchgear, Substation Protection Device
VB 40.5-N7X9-x

VB 40.5-N7X9-x High Voltage Vacuum Circuit Breaker, 40.5kV Switchgear, Substation Protection Device

VB 40.5kV vacuum interrupter
N7X9 medium voltage breaker
VB N7X9 series circuit breaker
VB 40.5-N7X9-x
VB 40.5kV vacuum interrupter designed for N7X9 medium voltage breaker, a key component of VB N7X9 series circuit breaker. Delivers reliable power distribution and protection in 40.5kV medium voltage systems. Optimized for durability and safety.
Categories:Automation
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Product Description

The VB 40.5-N7X9-x is a high-performance medium voltage circuit breaker integrating the advanced VB 40.5kV vacuum interrupter, designed for reliable power distribution in industrial grids. As part of the VB N7X9 series circuit breaker family, it features a modular design supporting direct connections to up to 6 auxiliary modules. It operates within a voltage range of 24-40.5kV and withstands ambient temperatures from -30°C to +55°C. Equipped with 1 primary input and 2 output terminals, it integrates seamlessly with protection relays via standard communication interfaces (RS485, IEC 61850). Widely used in substations, renewable energy systems, and manufacturing plants, the N7X9 medium voltage breaker excels in high-breaking capacity (up to 40kA) and compact structure, though its installation requires professional expertise. The vacuum interrupter ensures minimal maintenance and extended service life.
Parameter Specification
Rated Voltage 40.5 kV
Rated Current 2000-3150 A
Short-Circuit Breaking Capacity 25 kA / 31.5 kA
Interrupting Medium VB 40.5kV vacuum interrupter
Dielectric Withstand (1min power-frequency) 95 kV
Impulse Withstand Voltage 185 kV
Mechanical Life 10,000 operations
Operating Mechanism Spring-operated (N7X9 medium voltage breaker)
Control Voltage DC 110/220 V
Arc Extinguishing Technology Axial magnetic field electrode
Insulation Material Epoxy resin/SF6 gas composite
Protection Class IP4X (VB N7X9 series circuit breaker)
Ambient Temperature -25°C to +40°C
Weight 185-240 kg
Standards Compliance IEC 62271-100 / ANSI C37.06
question:Can the company ensure stable supply of products?
answer:Yes, we maintain efficient supply chains and inventory management to ensure consistent product availability and timely delivery.
question:Can the company provide upgraded or alternative models?
answer:We offer upgraded models and alternative options based on market trends and technological advancements to meet diverse client needs.
question:Does the company offer technical selection services?
answer:Our expert team provides technical guidance to help clients select optimal products tailored to their specific requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can the company ensure stable supply of products?
answer:Yes, we maintain efficient supply chains and inventory management to ensure consistent product availability and timely delivery.
question:Can the company provide upgraded or alternative models?
answer:We offer upgraded models and alternative options based on market trends and technological advancements to meet diverse client needs.
question:Does the company offer technical selection services?
answer:Our expert team provides technical guidance to help clients select optimal products tailored to their specific requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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