Shawmut AJT150 Fuse

The Mersen/Ferraz Shawmut AJT150 is a 150 A, 600 V Class J time-delay fuse from the Amp-Trap 2000 family, designed to protect power circuits while tolerating motor-start inrush. It uses SmartSpot indicating technology to visibly signal a blown fuse, and its cylindrical fiberglass body measures 5-3/4 in (146.1 mm) in length and 1-5/8 in (41.3 mm) in diameter. Rated for 600 VAC and 500 VDC, the AJT150 is intended for general-purpose protection in distribution panels, switchgear, feeders, and other industrial equipment where 150 A protection is required and a compact Class J package is desirable. As part of the Amp-Trap 2000 line, it delivers reliable time-delay performance and strong fault-current handling within a rugged, easy-to-integrate form factor that supports common industrial power architectures. Common applications include protection of feeders, branch circuits, motor drives, and power supplies in industrial environments, where a 150 A, 600 V-rated Class J fuse aligns with standard protection schemes.