BGH-40.5 Vacuum Circuit Breaker
2.Rated Current:630,1250
3.Frequency:50Hz
4.Perfectly integrating circuit breaker, disconnecting switch and grounding switch, making the box-variable cabinet structure simpler and more convenient for maintenance;
5.Equipped with outdoor 35kV box variable, widely used in photovoltaic, wind energy and other new energy power stations;
6.It can be equipped with an additional lightning arrester, charged display and other functions according to the requirements;
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
1.BGH-40.5 Vacuum Circuit Breaker: Reliable Protection for Medium-Voltage Grids
The BGH-40.5 Vacuum Circuit Breaker is a cutting-edge solution designed for modern power systems, combining superior performance with unmatched durability. Ideal for industries ranging from renewable energy to heavy manufacturing, this three-station integrated device simplifies substation design while ensuring safety and efficiency. With its compact structure and advanced vacuum interrupter technology, the BGH-40.5 delivers precise fault interruption, making it a trusted choice for 35kV/40.5kV applications worldwide.
2.Technical Specifications
- Rated Voltage: 40.5kV
- Rated Current: 630A / 1250A
- Frequency: 50Hz
- Design: Integrated circuit breaker, disconnector, and grounding switch
- Optional Add-ons: Lightning arresters, charged displays, IoT-ready sensors
| No. | Parameter name | Unit | Data | ||
| 1 | Rated current | А | 630/1250 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated insulating level | 1 min power frequency withstand voltage(effective value) | Inter-phase,ground,vacuum break | kV | 95 |
| Isolation break | kV | 118 | |||
| 4 | Lightning impulse withstand voltage(peak) | Inter-phase,ground, vacuum break | kV | 185 | |
| Isolation break | kV | 215 | |||
| 5 | Rated short-circuit breaking current | kA | 2531.5 | ||
| 6 | Standard Operating sequence | O-0.3s-CO-180s-CO | |||
| 7 | Rated-short-circuit making current (peak) | kA | 6380 | ||
| 8 | Rated dynamic stability current (peak) | kA | 6380 | ||
| 9 | Rated thermal stability current | kA | 2531.5 | ||
| 10 | Rated thermal stability time | S | 4 | ||
| 11 | Breaking operations of rated short circuit breaking current | times | 20 | ||
| 12 | Circuit resistance | uΩ | <150 | ||
| 13 | Rated operating voltage | V | -220/~ 220 | ||
| 14 | Mechanical endurance (Circuit breaker /isolating switch) | times | 10000/3000 | ||
3.Key Features & Benefits
1. Simplified Grid Architecture
The BGH-40.5 merges three critical functions into one compact unit, reducing cabinet complexity and maintenance time by 30%. Its modular design allows seamless retrofitting into existing switchgear systems.
2. Built for Renewable Energy
Widely used in solar farms and wind stations, this breaker supports fluctuating loads and harsh outdoor conditions. Pre-configured compatibility with 35kV box-type transformers accelerates project timelines.
3. Enhanced Safety & Efficiency
Vacuum interruption technology eliminates SF6 gas, reducing environmental impact and operational costs. The grounding switch ensures zero-voltage conditions during maintenance, protecting technicians in live grid environments.
4. Rugged Industrial Performance
With IP67 protection and anti-vibration design, the BGH-40.5 excels in mining, metallurgy, and chemical plants. Its corrosion-resistant coating withstands extreme humidity and dust.
4.Applications
Be used in a wide range of industries.
Industrial Plants
Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.
Substation
Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.
Commercial Buildings
Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.
5.Manufacturing Excellence
Every BGH-40.5 Vacuum Circuit Breaker undergoes 23 rigorous quality checks under ISO 9001 protocols. Our patented contact material ensures 10,000+ mechanical operations without degradation.
6.Why Choose Us?
- Certifications: IEC 62271, and GB/T 1984-2014.
- R&D Leadership: Developed by a team involved in China’s National 863 Program.
- Global Support: 48-hour technical response, 12-month warranty.
- Sustainable Innovation: 15% lower energy loss vs. traditional breakers.
7.FAQs
1. Can the BGH-40.5 replace older SF6-based breakers?
Yes! Its compact footprint allows direct retrofitting with minimal modifications.
2. What altitude range does it support?
Rated for up to 3,000 meters—ideal for high-altitude wind farms.
3. How often should maintenance be performed?
Inspect every 5 years under normal conditions; remote monitoring reduces physical checks.
4. Are smart grid integrations possible?
Absolutely. Add voltage sensors or communication modules for real-time data.
8.Contact Us
Email our engineers at xaxd_electric@163.com for tailored configurations.
Trusted by grid operators across 20+ countries, the BGH-40.5 Vacuum Circuit Breaker redefines reliability in medium-voltage applications. Contact us today to optimize your power infrastructure.
9.Factory Show
10.Equipment Display
11.Application Cases
State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors
12.Team and Exhibition
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