The ABB TB551J2100F05 is a precision-engineered molded-case circuit breaker (MCCB) designed for industrial and commercial electrical protection. With a 100A rating, this breaker provides reliable overcurrent protection and ensures system stability in demanding environments. It features a thermomagnetic trip unit for accurate response to overloads and short circuits. Its compact and robust design allows easy installation in a variety of electrical systems, making it ideal for protecting critical power distribution infrastructure.