The ABB VD4 12.06.25 Vacuum Circuit Breaker (VCB) is a premium medium-voltage indoor breaker designed for 11kV switchgear systems. Rated at 630A with a breaking capacity of 25kA, this model is engineered to deliver high-performance arc interruption using ABB’s advanced vacuum interrupter technology, ensuring reliability, personnel safety, and reduced maintenance.

This VD4 model comes with:

• MO1 – Spring-operated mechanical operating mechanism

• MC – Mechanical interlock to ensure safe operation

• MS – Automatic shutter for live part isolation

• BB1-2 – Busbar and interlocking units for panel integration

The VD4 series is globally recognized for its robustness, long service life, and seamless compatibility with modern and retrofit switchgear systems. It is widely used in utilities, industries, and infrastructure distribution networks.

✅ KEY FEATURES

• ⚡ Rated Voltage: 11kV

• ? Rated Current: 630A

• ? Breaking Capacity: 25kA (short-circuit) – suitable for high fault-level environments

• ? Vacuum Interrupter: Safe, arc-free interruption with long electrical and mechanical life

• ?️ MO1 Mechanism: Manual or motor-charged spring operation for reliable performance

• ? MC Interlock: Prevents unsafe breaker operations such as racking under load

• ?️ MS Shutter: Covers live parts automatically during withdrawal for maintenance safety

• ? BB1-2 Modules: Enable secure busbar connectivity and mechanical panel interlocking

• ? Minimal Maintenance: Vacuum technology eliminates need for frequent servicing

• ? Standards Compliance: IEC 62271-100 certified

• ? Applications: Ideal for substations, industrial distribution, and infrastructure requiring compact and high-performance indoor breakers