The
Terasaki TemPower2 AR320H 3-Pole Air Circuit Breaker is designed for electrical networks exposed to extremely high short-circuit currents. With a
2000A frame size and an adjustable current setting range of
800A to 2000A, it is ideal for
main incomers, generator protection, and transformer feeders in heavy-duty power systems.
Featuring an extra high AC breaking capacity of 100kA at 440VAC, the AR320H provides superior fault-clearing performance, reducing the risk of equipment damage and system downtime. The integrated LSIG electronic protection delivers comprehensive protection against overloads, short-time faults, instantaneous faults, and ground faults.
Built with a fixed mounting design and fully compliant with IEC 60947-2, the Terasaki AR320H offers Ics = 100% of Icu and Icw = 100% of Icu, ensuring full selectivity and short-time withstand capability. Combined with trip memory and Terasaki’s proven engineering, it is a reliable choice for mission-critical power distribution.