Siemens HJX3P400 Molded Case Circuit Breaker is a three-pole MCCB rated for 400 A at up to 600 V AC, designed to protect medium- to large-sized electrical feeders. It uses an electronic trip unit (ETU) for adjustable overcurrent protection and carries an interrupting rating up to 25 kA at 600 VAC, suitable for demanding industrial applications. This Siemens device is intended for integration into industrial and commercial power distribution systems where reliable protection and coordination with other protective devices are required.
