TJN40 - 40Amp Fuse

TJN40 - 40 Amp Fuse

The TJN40 is a 40 amp Class T fuse made for fast, reliable circuit protection in your electrical systems where downtime and equipment damage can become expensive problems. Its very fast-acting design helps respond quickly during overloads and short circuits, helping you to protect sensitive equipment before larger issues develop. With a 200 kA interrupting rating at 300VAC, the TJN40 is well suited for applications that demand high fault-current protection in a compact fuse size. The cartridge-style body allows for easy installation in control panels, power distribution equipment, and other electrical assemblies where space may be limited.

This fuse is commonly used in commercial and industrial environments to help protect drives, control circuits, transformers, and other sensitive electrical components. Its current-limiting design helps reduce the amount of energy that passes through during a fault condition, which can help minimize damage to connected equipment.

Key Features and Benefits

• 40 amp Class T fuse
• Very fast-acting protection
• 200 kA interrupting rating at 300VAC
• Current-limiting design
• Compact cartridge-style construction
• Non-indicating fuse type
• Helps protect sensitive electrical equipment from overloads and short circuits

Technical Specifications

• Part Number: TJN40
  
• Type: Class T Fuse
  
• Series: TJN
  
• Amperage: 40A
  
• Voltage Rating: 300VAC
  
• Interrupting Rating: 200 kA @ 300VAC
  
• Style: Cartridge
  
• Indication: Non-Indicating
  
• Height: 0.875 in.
  
• Width: 0.562 in.
  
• Depth: 0.562 in.
  

Material Compliance and Certifications

• The TJN40 is designed for use in electrical protection applications requiring high interrupting capacity and fast fault response. Class T fuses are widely used in commercial and industrial systems where dependable overcurrent protection is important for equipment safety and system performance.

Where It Works Best

• Industrial control panels
• Power distribution equipment
• Variable frequency drives (VFDs)
• UPS and backup power systems
• OEM machinery
• Commercial electrical systems
• Sensitive electronic equipment protection