Mersen AJT4.5 - Class J Fuse 4.5A 600VAC (Time-Delay)
Mersen AJT4.5 - Class J Fuse 4.5A 600VAC (Time-Delay)

Mersen AJT4.5 - Class J Fuse 4.5A 600VAC (Time-Delay)

Mersen
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The Mersen AJT4.5 is a 4.5-amp, 600-volt AC/300-volt DC Class J time-delay fuse designed for branch circuit protection of motor circuits, transformers, and other inductive loads. It features a 200,000-amp interrupting rating (AIC) for high-fault applications and a compact rejection-style design that prevents substitution with lower-rated fuses. Constructed with a melamine body and silver-plated end caps, the fuse measures approximately 2.25 inches in length with a 13/32-inch diameter. It complies with UL 248-8 and CSA C22.2 No. 248.8 standards, ensuring reliable overcurrent protection in industrial control panels, switchgear, and motor starter applications. The time-delay characteristic allows it to withstand harmless inrush currents without nuisance opening.

Key Features & Specifications
  • Type: Class J, time-delay, rejection-style fuse
  • Voltage Rating: 600 VAC / 300 VDC
  • Current Rating: 4.5 A
  • Dimensions: 2.25 in length, 13/32 in diameter
  • Standards: UL 248-8, CSA C22.2 No. 248.8
  • Applications: Motor circuits, transformers, inductive loads, branch circuit protection
  • AIC rating: 200,000 A
  • Fuse Class: J
  • Mounting: Clip or ferrule
  • Weight: 5.19 lb


Product Identification
  • UPC: 0782001963071