Description
Product Name: ABB 2500A 20kA VD4 VCB Best price in Bangladesh
Manufacturer: ABB
Product Overview
The ABB VD4 Medium Voltage Vacuum Circuit-Breaker (VCB) series utilizes vacuum interruption technology combined with a stored-energy mechanical mechanism featuring a free trip. Designed for reliability and safety in medium-voltage power distribution systems, this series is available in fixed and withdrawable versions and is engineered in accordance with IEC 62271-100, VDE 0671, and CEI 17-1 standards.
Key Features
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Vacuum Interruption Technology: Employs vacuum interrupters for safe and efficient current interruption.
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Mechanical Mechanism: Features a stored-energy mechanical mechanism with a free trip.
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Flexible Configurations: Available in both fixed and withdrawable versions.
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Pole-Centre Options: Exact model ordering accommodates specific pole-centre distance variants (
p210andp275) to match switchboard layouts. -
Standards Compliance: Designed in accordance with IEC 62271-100, VDE 0671, and CEI 17-1 standards.
Technical Specifications
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Manufacturer: ABB
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Product Series: VD4
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Product Type: Medium Voltage Vacuum Circuit-Breaker (VCB)
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Exact Model: VD4 12.25.20 p210 / VD4 12.25.20 p275
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Rated Voltage ($U_r$): 12 kV
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Rated Current ($I_r$): 2500 A at 40°C
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Rated Short-Circuit Breaking Current ($I_{sc}$): 20 kA
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Rated Short-Time Withstand Current ($I_k$): 20 kA for 3 seconds
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Rated Frequency: 50–60 Hz
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Power-Frequency Withstand Voltage ($U_d$): 28 kV / 1 min
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Lightning Impulse Withstand Voltage ($U_p$): 75 kV
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Rated Peak Withstand Current (Ip): 50 kA
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Operating Sequence: O–0.3 s–CO–15 s–CO
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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: 60–80 ms
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Standard Service Temperature: −5°C to +40°C
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Interruption Technology: Vacuum
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Operating Mechanism: Stored-energy mechanical mechanism with free trip
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Pole-Centre Options: 210 mm (
p210) / 275 mm (p275)
Conclusion
The ABB VD4 2500A 20kA VCB provides a standardized medium-voltage switching solution. By selecting the correct exact model configuration (VD4 12.25.20 p210 or VD4 12.25.20 p275), engineers and buyers can ensure proper physical alignment and compliance with switchboard specifications.
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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