AJT350 – Mersen | CLASS J TD 600V 350A

Description

The Mersen AJT350 is a high-capacity Class J time-delay fuse designed for robust protection in industrial and commercial electrical systems. It combines advanced technology with a compact design to provide exceptional performance and safety.

Key Features

• SmartSpot Indicator: Equipped with a solid-state or non-indicating SmartSpot visual open fuse indicator for easy identification of a blown fuse.
• Time-Delay Function: Time-delay characteristics handle inrush currents from motors and transformers, preventing unnecessary fuse blowing.
• High Interrupting Rating: 300kA interrupting rating, validated through self-certification and UL witnessed tests.
• Current-Limiting Capabilities: Extremely current-limiting, managing low peak let-thru currents efficiently.
• Space-Efficient Design: Requires only half the mounting space compared to 600VAC Class RK fuses, allowing for more compact fuse blocks.
• Arc Flash Energy Reduction: Recommended for reducing arc flash energy, enhancing safety.
• Selectivity: Provides 2-to-1 selectivity to prevent nuisance shutdowns.
• Dimensional Stability: Fiberglass body ensures stability and durability in harsh industrial settings.
• High-Visibility Label: Features a bright orange label for instant brand recognition.
• Traceability: Includes a metal-embossed date and catalog number for traceability and lasting identification.
• Optional Indicator/Switch: Available with an EI indicator/switch mount for enhanced open fuse indication.

Specifications

• Manufacturer Part Number: AJT350
• Voltage Rating (AC): 600 V
• Ampere Rating: 350 A
• Fuse Class: Class J
• Interrupting Rating: 300kA
• Body Material: Fiberglass with high-grade silica filler
• Standards Approvals:
  • UL listed to standard 248-8
  • 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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