Description
Product Name: ABB 630A 20kA VD4 Fixed VCB Best Price in Bangladesh
Manufacturer: ABB
Product Overview
The ABB VD4 Medium Voltage Fixed Vacuum Circuit-Breaker series utilizes advanced vacuum interruption technology. Engineered as an indoor fixed vacuum circuit breaker designed in accordance with IEC 62271-100 standards, this unit provides switching performance for medium-voltage distribution systems, ensuring operational reliability.
Key Features
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Vacuum Interruption Technology: Employs vacuum interrupters for safe, efficient, and reliable current interruption.
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Fixed Design: Specifically engineered for stationary/fixed mounting configurations to suit various panel board designs.
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Proven Performance: Engineered for medium-voltage applications with consistent performance across diverse environments.
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Design Standard: Designed in accordance with IEC 62271-100 for safety and technical compliance.
Technical Specifications
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Manufacturer: ABB
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Series: VD4 (Fixed Type)
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Rated Voltage ($U_r$): 12 kV
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Rated Insulation Voltage ($U_s$): 12 kV
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Rated Normal Current ($I_r$): 630 A
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Rated Breaking Capacity ($I_{sc}$): 20 kA
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Short-Time Withstand Current ($I_k$, 3s): 20 kA
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Making Capacity ($I_p$): 50 kA
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Frequency: 50–60 Hz
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Power-Frequency Withstand Voltage: 28 kV / 1 min
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Impulse Withstand Voltage: 75 kV
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Opening Time: 33–60 ms
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Arcing Time: 10–15 ms
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Total Breaking Time: 43–75 ms
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Closing Time: 30–60 ms
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Operating Temperature: -5°C to +40°C
Dimensions & Pole Distances
For the 630A configuration, different pole distances correspond to specific unit widths, while the height remains 461 mm and depth 424 mm:
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135 mm Pole Distance: Width is 410 mm
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150 mm Pole Distance: Width is 450 mm
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210 mm Pole Distance: Width is 570 mm
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275 mm Pole Distance: Width is 700 mm
Conclusion
The ABB VD4 630A 20kA Fixed VCB provides a reliable switching solution for medium-voltage distribution systems, offering multiple pole-distance configurations to meet specific installation requirements.
Contact Us
For pricing inquiries, system design, and stock availability in Bangladesh, get in touch with our team:
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Phone: +8801737118246
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Email: [email protected]





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