The Mersen AJT Series Class J time-delay fuses are designed for motor, transformer, and general branch-circuit protection where compact size and high interrupting capacity are required. The series provides IEC Type 2 "No Damage" protection and current-limiting performance in about half the mounting space of 600V Class RK fuses, and covers ratings from 1A to 600A for a wide range of load types. Its time-delay design absorbs normal motor and transformer inrush current without nuisance opening.
Key Features
Class J time-delay fuse rated 600V AC (up to 500V DC depending on amperage)
Interrupting rating up to 200kA AC / 100kA DC
Available in ratings from 1A to 600A
SmartSpot visual open-fuse indicator available on select ratings
Optional mechanical indicator/microswitch mount (EI) available on blade-type fuses, 70-600A, for remote indication
Ferrule or blade terminal styles depending on amperage
Approximately half the mounting space required by 600V Class RK fuses
