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Home Product VB 40.5-x Medium Voltage Vacuum Circuit Breaker 40.5kV Switchgear Insulated
VB 40.5-x

VB 40.5-x Medium Voltage Vacuum Circuit Breaker 40.5kV Switchgear Insulated

VB40.5-x Circuit Breaker
Medium Voltage VB40.5-x
VB Series Vacuum Breaker
VB 40.5-x
VB40.5-x Circuit Breaker from the VB Series Vacuum Breaker family, engineered for medium voltage systems up to 40.5kV. Features advanced vacuum interrupter technology, compact design, and high reliability for substations, power grids, and industrial plants. Supports multiple mounting configurations and seamless integration with protection systems.
Categories:Automation
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Product Description

The VB40.5-x Circuit Breaker is a robust Medium Voltage VB40.5-x device designed for reliable power distribution and protection in demanding industrial environments. Part of the VB Series Vacuum Breaker family, it features a single input/output configuration with direct integration for up to six auxiliary modules, enabling flexible control and monitoring. Equipped with advanced communication interfaces including RS485 and Ethernet, it supports seamless integration into SCADA systems. Operating within a voltage range of 24-40.5 kV and temperatures from -30°C to +55°C, this breaker is widely used in energy grids, manufacturing plants, and renewable energy installations. Its compact design ensures efficient arc quenching and minimal maintenance, though installation requires specialized expertise. The integrated 4.3-inch LCD provides real-time diagnostics, while its vacuum interrupter technology ensures rapid fault detection within 20 milliseconds, enhancing system safety.
ParameterSpecification
ModelVB40.5-x Circuit Breaker
Rated Voltage40.5 kV
Rated Current1250-3150 A
Short-Circuit Breaking Current25-31.5 kA
Lightning Impulse Withstand Voltage125 kV
Power Frequency Withstand Voltage70 kV/1min
Interrupting MediumVacuum Interrupter
Mechanical Life10,000 operations
Closing Time≤75 ms
Opening Time≤45 ms
Operating SequenceO-0.3s-CO-15s-CO
Control VoltageDC 110/220 V
SeriesVB Series Vacuum Breaker
question:Why can other suppliers find discontinued models you can't price?
answer:Some suppliers may hold old stock or sell replicas. We don't source outdated or unverified products.
question:Can your company maintain stable product supply?
answer:Yes, we ensure stable supply through strict production planning and reliable supplier partnerships, barring force majeure.
question:Why was the product received with the label cut off?
answer:Labels are cut to comply with regional distribution agreements. Contact our support team for immediate resolution.
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:Why can other suppliers find discontinued models you can't price?
answer:Some suppliers may hold old stock or sell replicas. We don't source outdated or unverified products.
question:Can your company maintain stable product supply?
answer:Yes, we ensure stable supply through strict production planning and reliable supplier partnerships, barring force majeure.
question:Why was the product received with the label cut off?
answer:Labels are cut to comply with regional distribution agreements. Contact our support team for immediate resolution.
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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