Westinghouse Electric Corporation E78191P20A Fuse

The Westinghouse E78191P20A Fuse is a 120 VAC, 1-pole industrial fuse designed for branch circuit and overcurrent protection in electrical distribution systems. As a single-pole industrial fuse, it protects industrial control panels, machinery power circuits, HVAC equipment, and commercial electrical systems that require reliable circuit protection. It offers a 20 A current rating, 120 VAC voltage rating, and industrial-duty construction, with part number E78191P20A and alternate part number E-7819-1P-20A. Maintenance electricians, OEMs, and panel builders use this fuse for equipment protection and the replacement of blown fuses in electrical maintenance applications. Common replacements include Bussmann FRN-R-20 and Mersen TR20R. It is commonly used in automation panels, motor control systems, lighting circuits, distribution equipment, and machinery installations where overcurrent protection maintains equipment safety and uptime.