Siemens MXD63L800 – 800A 3 Pole Motor Circuit Protector Hassle-Free Returns

Engineered for heavy-duty motor branch circuits, the Siemens MXD63L800 is a 3-pole, 800A motor circuit protector. It delivers instantaneous short-circuit protection for industrial applications. This MD-frame unit installs into Siemens Sentron S4 and S5 panelboards, switchboards, and motor control centers. It replaces legacy CMD63L800 models. Delivering 50 kAIC at 480VAC, it includes an adjustable magnetic trip (3000-6000A) to coordinate with motor starters and prevent nuisance tripping.