Industrial AJT90 Class J High Voltage Time Delay Fuse

The Mersen Amp-Trap 2000 AJT90 is a Class J time-delay fuse rated for 90 A at up to 600 VAC, engineered to handle motor starting and transformer inrush while delivering reliable short-circuit protection. It uses blade terminals and, as part of the Amp-Trap 2000 SmartSpot line, offers a visual open-fuse indicator for quick status checks. The device carries an AC interrupting rating of 200 kA and a DC rating up to 100 kA, with body dimensions of about 1-1/16 in. diameter and 4-5/8 in. length. UL 248-8 and CSA C22.2 certifications apply to the AJT family, and the AJT90 is available in SmartSpot and non-indicating variants for applications in motor circuits, feeders, branch circuits, and general power distribution.