AJT225 - 225 Amp Fuse

AJT225 - 225 Amp Fuse

The AJT225 Class J Time-Delay Fuse from the Amp-Trap 2000® series is engineered for high-performance overcurrent protection in demanding commercial and industrial electrical systems. Designed to handle the heavy startup currents commonly associated with motors, transformers, HVAC systems, and industrial machinery, this 225 amp fuse delivers dependable circuit protection while helping you reduce unnecessary fuse openings during temporary inrush conditions. Its time-delay design allows normal equipment startups to pass without interruption, while the fuse still reacts quickly during overloads and short circuits to help protect your sensitive electrical components and connected equipment.

Whether used in feeder circuits, branch circuits, or main power distribution applications, the AJT225 offers a strong combination of safety, reliability, and space-saving performance for modern electrical systems that demand consistent protection under tough operating conditions.

Key Features and Benefits

• Time-delay performance helps prevent nuisance fuse openings during motor and transformer startup currents: Allows temporary startup surges to pass without unnecessary interruptions.
• Current-limiting design helps reduce equipment damage during short-circuit conditions: Helps minimize thermal and mechanical stress on connected electrical systems.
• Compact Class J construction saves valuable panel and enclosure space: Fits well into installations where enclosure space is limited.
• SmartSpot® visual indicator allows quick identification of opened fuses: Helps maintenance teams quickly locate opened fuses during troubleshooting.
• High interrupting capacity supports demanding industrial and commercial applications: Suitable for high fault-current electrical environments.
• Suitable for both AC and DC electrical systems: Compatible with a variety of electrical distribution systems.
  

Technical Specifications

• Catalog Number: AJT225
  
• Series: AJT – Class J – Time-Delay
  
• Product Type: Amp-Trap 2000® Fuse
  
• Ampere Rating: 225 Amps
  
• Voltage Rating (AC): 600 VAC
  
• Voltage Rating (DC): 500 VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class J
  
• Characteristic: Time Delay
  
• Interrupting Rating: 200 kA
  
• Mounting Type: Clip or Bolted
  
• Terminal Type: Blade
  
• Terminal Material: Brass
  
• Indication System: SmartSpot® Visual Indicator
  
• Body Material: GMG
  
• Product Diameter: 54 mm
  
• Product Length: 181.1 mm
  
• Product Weight: 0.8119 kg
  

Material Compliance and Certifications

• Industry Standards: The AJT225 is part of the Low Voltage UL/CSA Fuse product group and is engineered to meet demanding North American electrical protection standards.
• Protection Requirements: Its advanced fuse design supports IEC Type 2 “No Damage” protection requirements when properly applied within coordinated electrical systems.
  

Where It Works Best

• The AJT225 is well-suited for motor control centers, HVAC equipment, industrial machinery, transformers, switchboards, panelboards, feeder circuits, branch circuits, and power distribution systems where temporary startup surges are common but reliable overcurrent protection remains critical. Its compact size and high interrupting capacity make it especially useful in facilities where space savings and dependable fault protection are equally important.