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Home Product VB 40.5N-x 40.5kV Vacuum Circuit Breaker HV Substation Switchgear
VB 40.5N-x

VB 40.5N-x 40.5kV Vacuum Circuit Breaker HV Substation Switchgear

VB40.5N vacuum circuit breaker
VB40.5N medium voltage
VB series switchgear
VB 40.5N-x
VB40.5N vacuum circuit breaker is a medium voltage electrical protection device in the VB series switchgear, designed for power distribution systems and industrial applications. It ensures reliable performance and safe interruption in medium voltage networks, delivering efficient operation and enhanced system protection.
Categories:Automation
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Product Description

The VB40.5N-x vacuum circuit breaker is a robust component of the VB series switchgear, designed for medium voltage applications up to 40.5kV. Featuring a 3-phase input and output configuration, it integrates directly with modular protection relays and busbar systems, supporting seamless connectivity in power distribution networks. Equipped with IEC 61850-compliant communication interfaces like Ethernet and RS485, it enables real-time monitoring and control in smart grid environments. Operating within a temperature range of -30°C to +60°C, it excels in harsh industrial settings such as mining, oil & gas, and utility substations. Key advantages include ultra-fast interruption (≤50ms), compact design for space-constrained installations, and maintenance-free operation due to vacuum arc-quenching technology. A built-in energy storage capacitor ensures 10+ consecutive fault-clearing operations, while its IP65-rated enclosure provides dust and moisture resistance. The optional 7-inch HMI touchscreen displays real-time parameters and diagnostics, enhancing operational visibility. The breaker's advanced current sensors enable precise fault detection up to 63kA breaking capacity, with adaptive protection algorithms for grid stability. Though requiring specialized training for installation, its modular architecture simplifies retrofitting into existing VB series switchgear systems.
ParameterSpecification
Product SeriesVB40.5N vacuum circuit breaker (VB series switchgear)
Rated Voltage40.5 kV
Rated Current2000A-3150A
Rated Frequency50/60 Hz
Insulation LevelLI 185 kV / AC 80 kV
Short Circuit Breaking25 kA - 31.5 kA
Mechanical Life10,000 operations
Operating MechanismSpring-driven with motor charge
Medium Voltage ApplicationVB40.5N medium voltage power distribution
Standards ComplianceIEC 62271-100, ANSI C37.04
Contact MaterialCuCr50 vacuum interrupter
Weight Range150-180 kg (depending on configuration)
question:Do you accept payment after delivery?
answer:No, payment is required before shipment as per standard terms to ensure secure transactions.
question:Can I schedule self-pickup via official courier?
answer:Yes, self-pickup is allowed with prior coordination. Contact support to arrange.
question:Why are service fees charged?
answer:Service fees cover transaction processing and administrative costs, standard for all orders.
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:Do you accept payment after delivery?
answer:No, payment is required before shipment as per standard terms to ensure secure transactions.
question:Can I schedule self-pickup via official courier?
answer:Yes, self-pickup is allowed with prior coordination. Contact support to arrange.
question:Why are service fees charged?
answer:Service fees cover transaction processing and administrative costs, standard for all orders.
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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