The ABB VMax 12.12.25 Vacuum Circuit Breaker (VCB) is a high-capacity, medium-voltage indoor circuit breaker designed for 11kV distribution systems. With a rated current of 1250A and an enhanced short-circuit breaking capacity of 25kA, it delivers robust performance in critical power applications. This model is equipped with vacuum interrupter technology, ensuring safe, arc-free operation and exceptional durability.

It includes:

• MO1 – Spring-operated Mechanical Operating Mechanism

• MC – Mechanical Interlock System

• MS – Mechanical Shutter for live part isolation

• BB1-2 – Busbar interface and safety interlock modules

Optimized for use in high-demand environments such as industrial facilities, substations, utilities, and critical infrastructure, this VCB guarantees maximum safety, reliability, and easy integration into switchgear panels.

✅ KEY FEATURES

• ⚡ Rated Voltage: 11kV

• ? Rated Current: 1250A

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

• ? Vacuum Interrupter: Ensures arc-free operation and long electrical endurance

• ?️ MO1 Operating Mechanism: Manual or motor-operated spring-charged system

• ? MC Interlock: Prevents incorrect operation under load or fault conditions

• ?️ MS Shutter Mechanism: Covers live parts during maintenance for enhanced safety

• ? BB1-2 Modules: Busbar connection and interlocking system for reliable panel integration

• ? Minimal Maintenance: Vacuum design reduces service intervals and downtime

• ? Standard Compliance: Conforms to IEC 62271-100

• ? Application Areas: Ideal for medium-voltage indoor power distribution in substations, industrial networks, and commercial facilities requiring 25kA protection