1SDA066808R1 ABB - XT1B 160 TMD 125-1250 3P F F

The 1SDA066808R1 is an ABB XT1B series molded case circuit breaker (MCCB), designed for reliable circuit protection in industrial and commercial applications. This specific model is a three-pole (3P) fixed circuit breaker, meaning all three phases of the electrical supply are protected simultaneously. It has a rated current of 160A, making it suitable for circuits with moderate to high current demands. The XT1B 160 features a TMD (Thermal-Magnetic Device) trip unit, providing protection against both overload and short-circuit conditions. The thermal protection is adjustable, allowing users to fine-tune the tripping threshold to match the specific load requirements, enhancing system flexibility and preventing nuisance tripping. The magnetic protection is fixed at 125-1250A, offering instantaneous tripping in the event of a short circuit, minimizing potential damage to equipment and ensuring safety. With a breaking capacity (Icu) of 18kA at 415V, this circuit breaker can effectively interrupt fault currents in systems with moderate fault levels. The 'F F' designation indicates that the breaker is fixed type and equipped with front terminals for easy and secure cable connection. This MCCB is typically installed in distribution boards or control panels to protect downstream circuits and equipment from overcurrents and short circuits.