Siemens HF322NR is a heavy-duty fusible safety switch designed to provide reliable overcurrent protection and disconnection in industrial and commercial power systems. This 60A, 240VAC/250VDC switch features a 3-pole configuration with a solid neutral for 4-wire applications, housed in a NEMA 3R enclosure rated for outdoor use. The unit measures 16.93 x 10.41 x 9.21 inches, weighs 18.999 lb, and is constructed with a Class R fuse holder for high-fault current protection. It is UL listed and certified to meet rigorous safety standards, supporting an AIC rating of 200kA at 240V. Typical applications include motor control centers, panelboards, and branch circuit protection in industrial facilities, commercial buildings, and outdoor installations requiring a weatherproof disconnect.