The Siemens ED63B100 Sentron Series Circuit Breaker is a 100A, 600V, 3-phase breaker with 3 poles and 6 gangs. It is made of ABS/plastic, aluminum, and copper materials, designed for interior use in commercial and industrial applications. This main breaker features thermal overload protection and a trip indicator, with an on/off operation method for AC current type. With a maximum amperage of 100A and current rating between 91-100A, this circuit breaker is a reliable and efficient choice for electrical equipment and supplies in the business and industrial sector.