CIRCUIT BREAKER S750DR 1-POLE E-CURVE 25A

Selective main circuit breakers Selective main circuit breakers are designed for overload and short-circuit protection of electrical installations. They provide perfect selectivity to downstream circuit breakers and exceptional selectivity to upstream protective devices thanks to their unique current-limiting selectivity. Selective main circuit breakers are suitable for protection of distribution circuits and offer an ideal solution in all energy distribution systems requiring maximum availability, such as data centers, hospitals, office buildings, etc. Since selective main circuit breakers are designed for overvoltage category IV and built-in isolation function, they are predestined to serve as the primary protection and isolation device in all main distribution boards or metering centers. ABB's selective main circuit breakers are line-independent without any connection required to an external power source or neutral conductor. Benefits • Perfect selectivity for downstream circuit breakers • Exceptional selectivity for upstream protective devices due to unique current-limiting selectivity • Designed to be used as the primary isolation device. Features • Separate series for DIN-rail mounting and direct rail mounting • Available in all common pole configurations (1, 2, 3, 4) and three-pole block with one-pole tripping. Tripping characteristics: E-selective and K-selective This product description is an automated translation of the original Finnish description.