The SENTRON circuit breaker program consists of a small number of components with a host of combination options, and it encompasses a performance range from 16 A to 6300 A. The versatility in power distribution achieved by this modularity enables  low-cost, flexible integration of the SENTRON circuit breakers into higher-level system solutions using communication. The ETU76B offers a pixel-graphics display with a clear, key-operated menu. This display can be used not only to show measured values, status information and maintenance information, but also to read all available parameters and modify them with  password protection.