3VA9448-0VK20 SIEMENS

The 3VA9448-0VK20 is a rear interlock mounting plate designed as an accessory for Siemens 3VA5 and 3VA6 series molded case circuit breakers (MCCBs) in the 400A and 600A frame sizes. This mounting plate facilitates the creation of mechanically interlocked circuit breaker systems. Mechanical interlocking ensures that only one of the interlocked breakers can be in the 'ON' position at any given time, preventing parallel operation and potential electrical hazards. This accessory enhances safety and reliability in critical power distribution applications. The rear interlock mounting plate provides a secure and stable platform for the interlocking mechanism. It simplifies the installation process, reducing the time and effort required for system integration. By preventing simultaneous closure of multiple breakers, it safeguards equipment and personnel from overloads and short circuits. This accessory is essential for applications requiring redundant power sources or automatic transfer schemes. It contributes to a more robust and dependable electrical system.