3VA9447-0HC10 SIEMENS

The 3VA9447-0HC10 is a synchronizable stored energy operator (SEO) designed for use with Siemens 3VA53, 3VA54, 3VA63, and 3VA64 molded case circuit breakers (MCCBs). This accessory ensures reliable and consistent operation of the circuit breaker, even in situations where the primary power source is interrupted. The SEO utilizes a 24 V DC power supply to store energy, which is then used to trip the circuit breaker when a fault occurs. This feature is particularly useful in critical applications where downtime must be minimized. The synchronizable function allows for coordinated tripping of multiple circuit breakers, enhancing system protection and selectivity. By providing a dedicated energy source, the SEO eliminates the reliance on the main power supply for tripping, improving overall system reliability. It is an essential component for ensuring the safe and efficient operation of electrical systems. The 3VA9447-0HC10 enhances the performance and dependability of Siemens MCCBs in diverse industrial and commercial settings. Its robust design and advanced features make it a valuable addition to any electrical protection system, contributing to increased safety and reduced downtime.