Allen-Bradley 140U-G2C3-C10 Molded Case Circuit Breaker – 100A, 3-Pole, 600V AC, G-Frame, Fixed Thermal-Magnetic

The 140U-G2 is a "G-Frame" breaker, which is the global standard for 100A-class protection. It features a fixed thermal-magnetic trip unit, meaning the 100A threshold is factory-set and cannot be dialed down. It is highly sought after for its "Global Ratings," carrying UL, CSA, and IEC certifications, making it suitable for machines exported worldwide.