Square D QMB362TW Panelboard Fusible Switch 3 Phase 60A 600V

Square D QMB362TW Fusible Panelboard Switch is a 3-pole, 60 A, 600 V AC fusible switch designed for use with Square D QMB panelboards. This compact twin-unit, plug-in style device provides two fuse blocks in a single housing to protect and disconnect a 3‑phase feeder within QMB E1/E2 panel boards. It accepts Class R, H, and K fuses, enabling standard fuse replacements and straightforward maintenance. Encased in a NEMA 1 enclosure for indoor installations, the unit is rated for up to 200 kA short‑circuit current at 480 V, supporting reliable protection in moderate to heavy distribution circuits. The 60 A rating and 600 V maximum capacity accommodate diverse motor and power feeder applications in commercial and light‑industrial environments where space is at a premium and fuse-based protection is preferred over solid‑state disconnects. Used as a main or feeder disconnect within QMB panelboards, this fusible twin switch provides a safe, code‑compliant isolation point and can be integrated into existing QMB E1/E2 lineups for scalable circuit protection.