AJT9 – Mersen | CLASS J TD 600V 9A

Description

The Mersen AJT9 is a Class J time-delay fuse designed for optimal protection in a variety of electrical systems. Its compact design and advanced features ensure reliable circuit protection while saving space.

Key Features

• SmartSpot Indicator: Equipped with a SmartSpot visual indicator for easy identification of a blown fuse.
• Time-Delay Function: Features time-delay characteristics suitable for handling inrush currents from motors and transformers, reducing unnecessary interruptions.
• High Interrupting Rating: 300kA interrupting rating, with self-certification and UL witnessed tests.
• Exceptional Current-Limiting: Provides excellent current-limiting performance, minimizing peak let-thru currents and protecting circuits.
• Arc Flash Energy Reduction: Recommended for reducing arc flash energy, enhancing safety.
• Compact Design: Requires only half the mounting space compared to 600VAC Class RK fuses, allowing for smaller and more economical fuse blocks.
• Easy Selectivity: Facilitates 2-to-1 selectivity to prevent nuisance shutdowns and ensure reliable operation.
• Unique Dimensions: Class J dimensions help prevent incorrect replacements.
• High-Visibility Label: Features a bright orange label for instant brand recognition.
• Durable Construction: Constructed with a fiberglass body and high-grade silica filler for durability and effective arc quenching.
• Traceability: Includes metal-embossed date and catalog number for traceability and lasting identification.
• Optional Indicator/Switch: Available EI indicator/switch mount for improved fuse status indication (for AJT70 to 600).

Specifications

• Manufacturer Part Number: AJT9
• Voltage Rating (AC): 600 V
• Ampere Rating: 9 A
• Fuse Class: Class J
• Body Material: Fiberglass with high-grade silica filler
• Standards Approvals:
  • UL listed to standard 248-8 File E2137
  • DC listed to UL standard 248
  • CSA certified to standard C22.2 No. 248.8
  • IEC 60269-2-1
• Applications:
  • Motor circuits
  • Mains
  • Feeders
  • Branch circuits
  • Lighting, heating, and general loads
  • Transformers
  • Control panels
  • Circuit breaker back-up
  • Bus duct
  • Load centers

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