The Square D QMB364W Panelboard Switch Handle Cap is an official replacement part designed to fit the QMB364W fusible panelboard switch assembly. The QMB364W is a 200 A, 600 V fusible, three-pole switch in the Square D QMB family (Series E1), typically used in panelboard configurations that require fusible protection and up to 150 HP at 600 VAC. This handle cap completes the switch handle assembly for the QMB364W, ensuring proper alignment with standard QMB handle components and a consistent finish on the handle area within industrial electrical distributions.
