AJT50 – Mersen | CLASS J TD 600V 50A

Description

The Mersen AJT50 is a Class J time-delay fuse designed for reliable circuit protection. Its compact design and advanced materials make it ideal for various industrial and commercial applications where space and performance are critical.

Key Features

• SmartSpot Indicator: Includes a visual SmartSpot indicator for easy identification of a blown fuse.
• Time-Delay Function: Provides time-delay characteristics, which are crucial for managing motor starting and transformer inrush currents.
• High Interrupting Rating: Capable of handling up to 300kA interrupting rating, with tests confirmed by UL.
• Current-Limiting: Offers superior current-limiting performance to reduce peak let-thru currents.
• Arc Flash Energy Reduction: Recommended for reducing arc flash energy, enhancing safety.
• Compact Design: Requires less mounting space compared to traditional fuses, allowing for more economical fuse blocks.
• Selectivity: Provides 2-to-1 selectivity to prevent nuisance shutdowns.
• Error Prevention: Unique Class J dimensions help prevent incorrect fuse replacements.
• High-Visibility Label: Features a bright orange label for instant brand recognition.
• Durable Construction: Made with a fiberglass body and high-grade silica filler for stability and quick arc quenching.
• Traceability: Metal-embossed date and catalog number ensure lasting identification.
• Optional Indicator/Switch: Available with an optional EI indicator/switch mount for enhanced open fuse indication.

Specifications

• Manufacturer Part Number: AJT50
• Voltage Rating (AC): 600 V
• Ampere Rating: 50 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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