The ABB part XT1NU3040AAA000XXX is a high-quality molded case circuit breaker designed for superior performance and reliability. This circuit breaker is built to protect electrical systems from overloads and short circuits, ensuring the safety of both equipment and personnel. With its advanced design and construction, it offers excellent thermal and magnetic protection, with a tripping current of 40A. Easy to install and operate, this ABB circuit breaker is an ideal choice for residential, commercial, and industrial applications. Trust in the durability and efficiency of the XT1NU3040AAA000XXX to provide long-lasting protection for your electrical systems.