KTN-R-4 - 4Amp Fuse

KTN-R-4 - 4Amp Fuse

The useful question isn’t simply, “Is it a 4-amp fuse?” A proper replacement check involves the complete specification. The Eaton Bussmann KTN-R-4 is a 4A, 250V Class RK1 fuse with a single-element configuration and a non-indicating design. If your required catalog number is KTN-R-4, checking the 4A rating, 250V rating, RK1 class, dimensions, and other listed characteristics together is a much better approach than choosing a replacement based on amperage alone.

Key Features and Benefits

• 4A amperage rating — clearly identifies the electrical rating for specification matching.
• 250V rating gives buyers another essential value to verify against equipment requirements.
• Class RK1 fuse — the manufacturer identifies the KTN-R-4 specifically within this fuse class.
• Single-element construction provides a clear physical specification for replacement verification.
• Non-indicating configuration matches applications where this fuse type is specified.
• Catalog number KTN-R-4 helps distinguish this 4A model from other amperage ratings within the KTN-R series.

Technical Specifications

• Product Name: Eaton Bussmann series KTN-R fuse
  
• Catalog Number: KTN-R-4
  
• UPC: 051712407328
  
• Product Type: Fuse
  
• Amperage Rating: 4 A
  
• Voltage Rating: 250 V
  
• Class: Class RK1
  
• Number of Elements: 1
  
• Fuse Indicator: Non-indicating
  
• Product Length/Depth: 2 in
  
• Product Height: 0.56 in
  
• Product Width: 0.56 in
  
• Product Weight: 0.1 lb
  

Material Compliance and Certifications

The supplied manufacturer data for the KTN-R-4 fuse lists compliance as: Not Applicable. No material specification or additional certification information is provided for this catalog number. Rather than applying specifications from other KTN-R models, those details are intentionally left unstated here.

Where It Works Best

The Eaton Bussmann KTN-R-4 is appropriate to evaluate when equipment documentation specifically calls for a 4A, 250V Class RK1 fuse and the remaining published specifications also match. Its 2-inch length, 0.56-inch height and width, single-element configuration, and non-indicating format provide additional checkpoints when comparing it with an existing fuse or maintenance documentation.