AJT80 - 80 Amp Fuse

AJT80 - 80 Amp Fuse

The AJT80 Class J Time-Delay Fuse is designed for your electrical systems that need dependable protection without unnecessary interruptions during startup. Its time-delay design helps you prevent nuisance openings during those brief surges while still providing fast protection if an overload or short circuit occurs.

One thing that makes the AJT80 a practical choice is its compact Class J design. It takes up less space than many traditional fuse types, which can help when working inside crowded electrical panels or control equipment. The built-in SmartSpot® visual indicator is also helpful during maintenance because it allows technicians to quickly identify when the fuse has opened, reducing troubleshooting time and helping systems get back online faster.

The AJT80 also provides strong current-limiting protection, helping reduce the amount of fault energy that passes through the system during a short circuit. That added protection can help minimize damage to connected equipment, wiring, and other electrical components. With a 200 kA interrupting rating and support for both AC and DC applications, this fuse works well in demanding environments where reliable overcurrent protection is important every day.

Key Features and Benefits

• Time-delay design helps reduce nuisance fuse openings during startup currents: Helps allow temporary startup surges without unnecessary fuse openings.
• Current-limiting protection helps minimize equipment damage during fault conditions: Helps reduce fault energy during short circuits.
• SmartSpot® visual indicator allows quick fuse identification during maintenance: Helps simplify troubleshooting and reduce downtime.
• Compact Class J construction helps save panel space: Useful in crowded electrical panels and control equipment.
• Suitable for both AC and DC applications: Supports a wide range of electrical systems.
• High 200 kA interrupting capacity for demanding electrical systems: Built for commercial and industrial applications.
• Blade-style terminals support secure installation: Helps provide dependable electrical connections.
• Helps support IEC Type 2 “No Damage” protection when properly coordinated: Supports coordinated protection systems.
• Designed for commercial and industrial overcurrent protection applications: Suitable for demanding power distribution systems.
  

Technical Specifications

• Catalog Number: AJT80
  
• Series: AJT – Class J – Time-Delay
  
• Fuse Type: Amp-Trap 2000®
  
• Ampere Rating: 80 Amps
  
• Voltage Rating (AC): 600 VAC
  
• Voltage Rating (DC): 400 VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class J
  
• Characteristic: Time Delay
  
• Interrupting Rating: 200 kA
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Mounting Style: Clip or Bolted
  
• Indication System: SmartSpot® Visual Open Fuse Indicator
  
• Product Diameter: 27 mm
  
• Product Length: 117.6 mm
  
• Body Material: GMG
  
• Product Weight: 0.1093 kg
  

Material Compliance and Certifications

• Industry Standards: The AJT80 fuse is manufactured for Low Voltage UL/CSA applications and is intended for use in commercial and industrial electrical systems. When properly coordinated within a system, it supports IEC Type 2 “No Damage” protection requirements.
  

Where It Works Best

• The AJT80 is commonly installed in HVAC equipment, motor control centers, industrial machinery, transformers, feeder circuits, branch circuits, and electrical distribution panels where temporary startup surges are expected but dependable overcurrent protection is still required.
  
• For applications that need reliable circuit protection, easier maintenance, and efficient use of panel space, the AJT80 Class J Time-Delay Fuse offers a practical solution for everyday industrial and commercial electrical systems.