ABB Moulded Case Circuit Breakers (MCCBs)

ABB is a pioneering technology leader that works closely with utility, industry, transportation, and infrastructure customers to write the future of electrification, industrial automation, motion, and robotics. Our solutions connect engineering know-how and software to optimize how things are manufactured, moved, powered and operated.

One of ABB's significant product lines is the Molded Case Circuit Breaker (MCCB), an electrical protection device that safeguards electrical circuits up to 630A from overloads and short circuits. MCCBs are available in various frame sizes and employ different types of trip units, including electronic, magnetic, fixed thermal-magnetic or adjustable thermal-magnetic, to detect thermal, magnetic faults and many more.

ABB SACE has an extensive range of moulded case circuit breakers with different standard-compliant versions:

Tmax XT series (available in IEC 60947-1&2 or UL 489 and CSA versions) delivers extreme performance and protection features up to 630A.

Tmax T series (available in IEC 60947-1&2 or UL 489 and CSA versions) up to 3200A, as well as high voltage MCCBs (1000Vac / 1500Vac)

FORMULA series (IEC / UL) offers simplicity and quality in some of the smallest dimensions.

Most popular current ratings are 15-20A, 50-60A, 100-150A, 150-200A, 350-400A, and short circuit breaking ratings 10-20kA, 30-40kA, 80-90kA.

In the product pages below, you will find ABB's comprehensive catalogues and manuals providing detailed information, including trip curves, operating mechanisms and installation guidelines, ensuring optimal performance and safety.