The
Terasaki TemPower2 AR440SB (Draw-Out Type) Air Circuit Breaker is engineered for large-scale power systems exposed to extremely high fault levels. Featuring a
3-pole configuration and an adjustable current setting range from
1600A to 4000A, this ACB is ideally suited for
main incomers, generator breakers, transformer protection, and critical feeders.
With an extra-high AC breaking capacity of 100kA at 440VAC, the AR440SB ensures rapid and reliable fault interruption, protecting valuable equipment and maintaining system stability. Its LSIG electronic protection provides complete coverage against overloads, short-time, instantaneous, and ground faults.
The draw-out mounting design allows safe isolation, inspection, and maintenance without disconnecting power cables, reducing downtime and improving operator safety. Fully compliant with IEC 60947-2, the Terasaki AR440SB offers Ics = 100% of Icu and Icw = 100% of Icu, ensuring maximum service continuity and short-time withstand capability.