AJT70 – Mersen | CLASS J TD 600V 70A

Description

The Mersen AJT70 is a Class J time-delay fuse designed for reliable protection in electrical systems. It combines compact dimensions with high performance, making it suitable for various applications where space and efficiency are critical.

Key Features

• SmartSpot Indicator: Includes a SmartSpot visual indicator to easily identify a blown fuse.
• Time-Delay Characteristics: Designed with time-delay features to handle motor and transformer inrush currents, preventing unnecessary interruptions.
• High Interrupting Rating: Provides up to 300kA interrupting rating, confirmed by UL witnessed tests.
• Current-Limiting: Extremely effective at limiting current to reduce peak let-thru currents and potential damage.
• Arc Flash Energy Reduction: Recommended for arc flash energy reduction to enhance safety.
• Compact Design: Requires less mounting space compared to traditional fuses, allowing for more compact and economical fuse blocks.
• Selectivity: Features 2-to-1 selectivity to avoid nuisance shutdowns and ensure reliable operation.
• Unique Dimensions: Class J dimensions help prevent incorrect replacements.
• High-Visibility Label: Equipped with a bright orange label for immediate brand recognition.
• Durable Construction: Made 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 identification.
• Optional Indicator/Switch: Available EI indicator/switch mount for improved fuse status indication.

Specifications

• Manufacturer Part Number: AJT70
• Voltage Rating (AC): 600 V
• Ampere Rating: 70 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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