ABB VBX01BA vacuum circuit breaker

ABB VBX01BA

Here are the technical parameters for the ABB VBX01BA, which is a vacuum circuit breaker typically used in medium-voltage (MV) switchgear applications (e.g., ABB’s UniGear or ZS1 switchgear panels):

ABB VBX01BA Technical Parameters

General Characteristics

Type: Vacuum Circuit Breaker (VCB)
Rated Voltage (Ur): 12 kV (other variants may support 7.2 kV, 17.5 kV, or 24 kV)
Frequency: 50/60 Hz
Standard: IEC 62271-1, IEC 62271-100

Rated Operational Current (Iu)

VBX01BA: Typically 630 A, 1250 A, or 2500 A (depends on configuration)

Short-Circuit Breaking Capacity (Isc)

Rated Short-Circuit Breaking Current (Icu): 25 kA, 31.5 kA, or 40 kA (depends on model)
Rated Short-Time Withstand Current (Icw): 25 kA (3 sec), 31.5 kA (3 sec)

Mechanical & Electrical Endurance

Mechanical Life: 10,000–20,000 operations
Electrical Life:
- At Rated Current (Iu): 5,000–10,000 operations
- At Short-Circuit Breaking (Icu): 50–100 operations

Control & Auxiliary Supply

Closing/Opening Time:
- Closing Time: ≤ 100 ms
- Opening Time: ≤ 60 ms
Auxiliary Voltage (for spring charging/motor):
- DC: 24 V, 48 V, 110 V, 220 V
- AC: 110 V, 220 V, 230 V, 400 V

Insulation & Environmental

Dielectric Strength:
- Power Frequency (1 min): 28 kV (12 kV model)
- Lightning Impulse (1.2/50 µs): 75 kV (12 kV model)
Operating Temperature: -25°C to +55°C
Humidity: Up to 95% (non-condensing)

Main Brand:

ABB Allen-Bradley Alstom Bently Emerson Foxboro

GE MOOG Schneider Woodward HIMA Honeywell

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•Shipping Port: Xiamen

•Ship to you via Fedex/DHL/TNT/UPS/EMS

•Package: Original packing with cartons

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Main advantages:

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