Siemens HMY3A800 Three Phase Molded Case Circuit Breaker

Siemens HMY3A800 Three-Phase Molded Case Circuit Breaker is an 800-amp, 600-volt, three-pole molded case protector built for industrial power systems. This MG-frame device uses an electronic trip unit to deliver precise overcurrent protection and trip diagnostics, and it offers a high interrupting rating of up to 100 kA at 240 VAC and 65 kA at 480 VAC. Line and load terminations use lug connections (not included with the breaker). The compact MG frame measures about 7 in high, 19 in long, and 10 in wide, and is suitable for installation in panelboards, switchgear, and motor control centers. This unit protects feeders and branch circuits on 600 V systems in commercial or industrial settings, including motors, pumps, and conveyors, delivering reliable three-phase protection and fast tripping when faults occur.