TJN225 - 225Amp Fuse

TJN225 - 225 Amp Fuse

The TJN225 Class T fuse is designed for your electrical systems that need fast, dependable protection against fault currents. Rated at 225 amps with a 200 kA interrupting capacity at 300 VAC, this very fast-acting fuse helps you to reduce damage to sensitive equipment by limiting fault energy before it can spread through the system. Its compact knife-blade design makes it a practical fit for industrial panels, switchboards, UPS equipment, and commercial power distribution setups where space and performance both matter. Because it’s a current-limiting Class T fuse, the TJN225 reacts quickly during short-circuit conditions, helping you to protect downstream components like transformers, drives, and control equipment. The non-indicating design keeps installation simple, while the high interrupting rating makes it a solid choice for applications with elevated available fault current. Whether used in new equipment or as a replacement component, the TJN225 delivers the level of protection many facilities rely on to keep electrical systems operating safely and efficiently.

Key Features and Benefits

• 225 amp Class T fuse: Designed for industrial and commercial electrical protection applications.
• Very Fast-Acting Response: Helps minimize equipment damage during electrical faults by reacting quickly to fault currents.
• 200 kA Interrupting Rating at 300 VAC: Suitable for high fault-current applications requiring dependable interruption capability.
• Current-Limiting Design: Reduces thermal and mechanical stress on downstream electrical equipment.
• Knife-Blade Style Construction: Supports secure installation in compatible electrical systems and assemblies.
• Compact Dimensions: Helps fit tight electrical enclosures, switchboards, and panel applications.
• Protection for Sensitive Equipment: Suitable for protecting transformers, drives, control equipment, and power distribution systems.
  

Technical Specifications

• Part Number: TJN225
  
• Type: TJN
  
• Fuse Class: Class T
  
• Amperage: 225A
  
• A.I.C. Rating: 200 kA @ 300 VAC
  
• Style: Knife-Blade
  
• Indication: Non-Indicating
  
• Acting Speed: Very Fast-Acting
  
• Dimensions:
  • Height: 2.75 in.
  • Width: 1.312 in.
  • Depth: 1.312 in.

Material Compliance and Certifications

• Current-Limiting Protection: The TJN225 is manufactured for use in demanding electrical protection applications that require current-limiting performance and high interrupting capacity.
• Industry Applications: Class T fuses are commonly specified in commercial and industrial systems designed to meet modern electrical safety standards and NEC installation practices.
  

Where It Works Best

• The TJN225 works well in electrical systems where rapid fault clearing is important to protect valuable equipment and reduce downtime. Common applications include motor control centers, commercial distribution panels, industrial machinery, UPS and backup power systems, transformer protection applications, control panels, switchgear, and high fault-current electrical systems.