Square D QMB364W Fusible Disconnect Switch 3 Pole 200A 600V

The Square D QMB364W Fusible Panelboard Disconnect Switch is a 3-pole, 200 A, 600 VAC (max) fusible disconnect designed for indoor use as a main or feeder disconnect in 3‑phase power distributions. As a wide, 9‑inch panel‑mount unit in Schneider Electric’s QMB fusible panelboard family, it accepts Class R fuses and is compatible with QMB E1 and E2 panel boards. It is rated up to 150 HP at 600 VAC and carries a short‑circuit current rating of 200 kAIC (as listed at 480 VAC), providing robust fault clearance for motor loads and other 3‑phase equipment. The enclosure is NEMA 1, and the device is intended for panel‑mounted installations, offering a compact, dependable disconnect solution for control panels and switchgear distribution systems.