1SDA054137R1 ABB - T4H 320 PR221DS-LS/I IN=320 4P F F

The 1SDA054137R1 is an ABB Tmax T4H 320 automatic molded case circuit breaker (MCCB), designed for fixed mounting and equipped with front terminals. This model features a T4H frame size, offering a breaking capacity suitable for various industrial applications. The MCCB is a 4-pole configuration, ensuring comprehensive protection for three-phase systems. It incorporates a PR221DS-LS/I trip unit, providing advanced protection functions, including overload (LS) and instantaneous (I) protection. The rated current (In) is 320A, making it suitable for circuits with high current demands. The 'F F' designation indicates specific performance characteristics related to its breaking capacity and selectivity. This MCCB is engineered to automatically interrupt the circuit in the event of overcurrent or short-circuit conditions, preventing damage to equipment and ensuring safety. It is ideal for use in power distribution boards, machinery protection, and other critical applications requiring reliable circuit protection. The Tmax series is known for its robust design and dependable performance in demanding environments.