Schneider Electric's Square D QMB367-MW is a three-pole, panel-mount fusible switch rated at 800 A and 600 V, acting as the main disconnect for QMB E1/E2 panel boards and other QMB-series switchgear. This NEMA 1 indoor enclosure accepts Class R fuses and is designed for three-phase distribution, with a short-circuit current rating of 200 kA at 480 V. It is part of the QMB fusible panelboard family and provides a manually operated main disconnect for servicing or emergency shutdown of the panel system.
