VXBZH-40.5 Series Indoor High-Voltage AC Combined Vacuum Circuit Breaker
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Product Introduction
VXBZH-40.5 Series Indoor High-Voltage AC Combined Vacuum Circuit Breaker

Product Overview:
The VXBZH-40.5 Series Indoor High-Voltage AC Combined Vacuum Circuit Breaker was independently designed and developed in response to the rapid growth and significant potential of the wind power and photovoltaic power generation markets. It is suitable for use in power supply networks with a rated voltage of 40.5kV and three-phase AC 50Hz.
Product Features:
▲ Advanced and rational design with a simple structure, ensuring easy installation, operation, and maintenance.
▲Vacuum and isolating breaks operate independently, completely eliminating arc burnout during isolating break operation while extending overall mechanical life to 10,000 operations. A reliable mechanical interlock between both breaks prevents misoperation.
▲Compact vacuum arc extinguishing chambers ensure sufficient insulation levels while reducing overall unit dimensions.
▲Exceptional withstand voltage capability meets 40.5kV circuit breaker standards (vacuum breakers: 95kV/1min at power frequency; 185kV impulse withstand).
▲Modular spring-operated mechanism supports manual, motorized, and remote control operation.
▲Compatible with grounding switches and electromagnetic locks for grounding blades, effectively preventing entry into energized compartments.
Key Technical Specifications:
|
NO. |
Parameter Name |
Unit |
Numerical value |
|||
|
1 |
Rated Voltage |
kV |
40.5 |
|||
|
2 |
Rated Current |
A |
630 |
1250 |
||
|
3 |
Rated Frequency |
Hz |
50 |
|||
|
4 |
Rated Insulation Level |
1-Minute Power Frequency Withstand Voltage |
To Ground and Between Poles |
kV |
54 |
|
|
Between Breaks |
118 |
|||||
|
5 |
Lightning Impulse Withstand Voltage |
To Ground and Between Poles |
kV |
185 |
||
|
Between Breaks |
215 |
|||||
|
6 |
Rated Short-Circuit Breaking Current |
kA |
25 31.5 |
|||
|
7 |
Rated Operating Sequence |
|
O-0.35-CO-180s-CO |
|||
|
8 |
Rated Short-Circuit Making Current (Peak) |
kA |
63 80 |
|||
|
9 |
Rated Dynamic Stability Current (Peak) |
kA |
63 80 |
|||
|
10 |
Rated Thermal Stability Current |
kA |
25 31.5 |
|||
|
11 |
Rated Thermal Stability Time |
s |
4 |
|||
|
12 |
Rated Short-Circuit Breaking Current Number of Breaks |
time |
30 |
|||
|
13 |
Loop Resistance |
μΩ |
≤150 |
|||
|
14 |
Rated Operating Voltage |
V |
DC220/AC220 |
|||
|
15 |
Mechanical Life (Circuit Breaker/Disconnector) |
time |
30000/6000 |
|||
OEM/ODM Services:
At Shaanxi Yuguang Electric Co., Ltd., we understand the importance of customization. That's why we offer comprehensive OEM and ODM services to meet your specific requirements. Whether you need private labeling or custom product development, our experienced team is here to assist you every step of the way.
Certificates:
We take pride in our commitment to quality and safety. Our products are certified to meet the highest industry standards, including:
3C Certification
ISO 9001 Certification
21 Utility Model Patents and Design Patents

Why Choose Us:
State-of-the-art Manufacturing Equipment
Extensive Testing Facilities
Comprehensive Quality Assurance Processes
ISO 9001 Certified Quality Management System
One-year Warranty on All Products
Large Production Capacity
FAQ:
Q: What is the warranty period for your products? A: We offer a one-year warranty on all our products.
Q: Can you customize products according to our specifications? A: Yes, we provide OEM and ODM services to meet your specific requirements.
Q: Are your products compliant with international standards? A: Yes, our products meet all relevant international standards.
Q: What is the lead time for orders? A: The lead time depends on the quantity and customization requirements. Please contact us for more information.
Q: Do you provide technical support? A: Yes, we offer comprehensive technical support to our customers.
Packaging:
Wooden Box Packaging
Carton Packaging
Foam-filled Packaging
Waterproof and Moisture-proof Packaging
Customized Packaging
International Standard Packaging
Logistics:
Sea Freight
Air Freight
Land Transportation
Multimodal Transport
Express Delivery Services
Contact Us:
Ready to take your electrical projects to the next level? Contact us today at ygvcb@hotmail.com to discuss your requirements and explore partnership opportunities with Shaanxi Yuguang Electric Co., Ltd. Let's create a brighter future together.
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