The ABB VMax/W 12.06.25 Vacuum Circuit Breaker (VCB) is a compact, high-performance medium-voltage indoor breaker designed for 11kV systems, rated at 630A with an enhanced breaking capacity of 25kA. It uses ABB’s advanced vacuum interrupter technology, ensuring arc-free interruption, increased operational safety, and minimal maintenance requirements.

This breaker features:

• MO1 – Mechanical Operating Mechanism

• MC – Mechanical Interlock

• MS – Mechanical Shutter

• BB1-2 – Busbar and interlock module system

As part of the VMax/W series, it offers optimized performance for indoor applications such as substations, commercial buildings, and industrial distribution systems, especially where higher fault-level protection is essential.

✅ KEY FEATURES

• ⚡ Rated Voltage: 11kV

• ? Rated Current: 630A

• ? Short Circuit Breaking Capacity: 25kA – ideal for high fault level environments

• ? Vacuum Interrupter Technology: Clean, reliable, and arc-free switching

• ?️ MO1 Operating Mechanism: Spring-charged system; supports manual and motorized operation

• ? MC Interlock: Prevents unsafe operation and ensures correct breaker sequencing

• ?️ MS Shutter Mechanism: Automatically covers live parts when breaker is withdrawn

• ? BB1-2 Modules: Enable safe busbar integration and mechanical interlocking between panels

• ? Low Maintenance Design: Vacuum interrupter needs minimal servicing

• ? Standards Compliance: Follows IEC 62271-100 for medium-voltage breakers

• ? Application Areas: Suitable for industrial plants, utilities, and critical infrastructure requiring compact 11kV breakers with 25kA protection