TJN45 - 45Amp Fuse

TJN45 - 45 Amp Fuse

The TJN45 Class T fuse is designed for your electrical systems that require fast, dependable protection without occupying unnecessary space in a panel or disconnect. Rated at 45 amps, this cartridge-style fuse reacts quickly during overloads and short circuits, helping reduce the chance of damage to sensitive electrical equipment and minimizing system downtime. Its current-limiting design helps you to control fault energy before it can spread through the circuit, making it a solid fit for demanding commercial and industrial environments.

With a 200 kA interrupting rating at 300 VAC, the TJN45 is designed for applications where high-fault-current protection is critical. The compact body size also makes installation easier in tighter electrical assemblies where space can be limited. Because it is a non-indicating fuse, replacement and maintenance remain simple for technicians already familiar with Class T fuse applications.

Key Features and Benefits

• Very Fast-Acting Protection: Very fast-acting Class T fuse for quick fault response.
• Current-Limiting Design: Current-limiting protection helps reduce equipment damage.
• 45-Amp Rating: 45-amp rating for commercial and industrial electrical systems.
• Compact Cartridge Design: Compact cartridge design fits easily into space-conscious equipment.
• High Interrupting Capacity: High 200 kA interrupting capacity at 300 VAC.
• Equipment Protection: Helps protect transformers, control panels, drives, and power distribution equipment.
• Non-Indicating Design: Non-indicating design for standard fuse replacement applications.
  

Technical Specifications

• Part Number: TJN45
  
• Type: TJN
  
• Fuse Class: Class T
  
• Style: Cartridge Style
  
• Amperage: 45A
  
• Voltage Rating: 300 VAC
  
• Interrupting Rating: 200 kA @ 300 VAC
  
• Fuse Characteristics: Very Fast-Acting, Current-Limiting, Non-Indicating
  
• Dimensions:
  • Height: 0.875 in.
  • Width: 0.562 in.
  • Depth: 0.562 in.

Material Compliance and Certifications

• Application Standards: The TJN45 fuse is manufactured for use in electrical systems requiring Class T current-limiting overcurrent protection.
• Performance Expectations: It is designed to meet the performance expectations commonly associated with industrial and commercial fuse applications.
• Installation Guidance: Always verify compatibility with your equipment specifications and local electrical code requirements before installation.
  

Where It Works Best

• The TJN45 works well in systems where rapid fault protection is important, especially in commercial and industrial settings. It is commonly used in control panels, power distribution equipment, transformers, UPS systems, HVAC equipment, and machinery circuits that need fast interruption during fault conditions. Its compact footprint also makes it useful in installations with limited panel space.