TJN350 - 350Amp Fuse

TJN350 - 350 Amp Fuse

The TJN350 Class T fuse is built for your applications where speed and protection matter. Rated at 350 amps with a 200 kA interrupting capacity at 300 VAC, this very fast-acting fuse helps you to protect electrical systems from damaging overloads and short circuits before they can spread through connected equipment. Its current-limiting design helps reduce let-through energy, making it a smart choice for protecting sensitive components and minimizing downtime. The compact knife-blade style construction also makes installation easier in switchboards, panelboards, and other tight electrical assemblies where space can be limited.

Instead of waiting for a fault to escalate, the TJN350 reacts quickly to help isolate the issue and protect valuable electrical infrastructure. It’s commonly used in commercial and industrial environments where reliable overcurrent protection is essential to maintaining safe, efficient operation. The non-indicating design keeps the fuse simple and dependable while still delivering the high-performance protection Class T fuses are known for.

Key Features and Benefits

• 350 amp Class T current-limiting fuse: Designed to provide dependable overcurrent protection in commercial and industrial electrical systems.
• Very fast-acting protection: Helps protect sensitive electrical equipment from damaging overloads and short circuits before they can spread through connected components.
• 200 kA interrupting rating at 300 VAC: Supports applications where high available fault current protection is essential.
• Knife-blade style terminals: Allows for secure installation in switchboards, panelboards, and other electrical assemblies.
• Compact size: Works well in space-conscious equipment layouts where installation room may be limited.
• Current-limiting performance: Helps reduce damage caused by short circuits and overloads by minimizing let-through energy.
• Non-indicating fuse design: Keeps replacement and maintenance straightforward while maintaining reliable protection performance.
• Commercial and industrial applications: Suitable for power distribution systems where dependable fault protection is required.
  

Technical Specifications

• Part Number: TJN350
  
• Type: TJN Class T Fuse
  
• Amperage: 350A
  
• Voltage Rating: 300 VAC
  
• Interrupting Rating: 200 kA @ 300 VAC
  
• Fuse Characteristics: Very Fast-Acting, Current-Limiting
  
• Terminal Style: Knife-Blade
  
• Indication: Non-Indicating
  
• Dimensions:
  • Height: 2.75 in.
  • Width: 1.312 in.
  • Depth: 1.312 in.

Material Compliance and Certifications

• Low-Voltage Electrical Distribution Use: The TJN350 is manufactured for use in low-voltage electrical distribution systems requiring Class T fuse protection.
• Current-Limiting Performance: Its high interrupting rating and current-limiting performance support applications where dependable fault protection and equipment safety are important.
  

Where It Works Best

• The TJN350 is a strong fit for commercial buildings, manufacturing facilities, control panels, motor control centers, UPS systems, transformers, and other electrical distribution equipment where high available fault current is present. Its fast response time makes it especially useful for protecting sensitive electrical components and minimizing damage during fault events.