KTN-R-150 - 150Amp Fuse

KTN-R-150 - 150Amp Fuse

When you need to replace a 150-amp fuse, the smartest move is to match the full specification—not just the number stamped on the body. The Eaton Bussmann KTN-R-150 is a 150A Class RK1 fuse rated for 250 Vac and 250 Vdc, with separate interrupt ratings of 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc. For electricians, plant maintenance teams, and electrical buyers, those details matter. Checking the KTN-R-150 catalog number, 150A rating, Class RK1 designation, AC/DC voltage ratings, interrupt ratings, connection style, and dimensions gives you a much clearer picture of whether this is the specified replacement.

Key Features and Benefits

• 150A Class RK1 fuse with clearly defined electrical ratings for straightforward specification matching.
• Rated for both 250 Vac and 250 Vdc, giving technicians separate AC and DC application values to verify.
• The blade-end-to-blade-end connection makes the physical connection style easy to compare with existing equipment.
• Single-element construction adds another useful identification point during replacement work.
• Melamine glass tube is the manufacturer-listed fuse material.
• 70/30 brass end cap construction is specifically identified as a feature of the KTN-R-150.
• The non-indicating design means this model does not include a built-in visual fuse-status indicator.

Technical Specifications

• Product Name: Eaton Bussmann Series KTN-R Fuse
  
• Catalog Number: KTN-R-150
  
• UPC: 051712407182
  
• EAN: 5027590267458
  
• Product Type: Fuse
  
• Class: Class RK1
  
• Amperage Rating: 150 A
  
• Voltage Rating: 250 Vac, 250 Vdc
  
• AC Interrupt Rating: 200 kAIC at 250 Vac
  
• DC Interrupt Rating: 100 kAIC at 250 Vdc
  
• Material: Melamine glass tube
  
• Number of Elements: 1
  
• Connection: Blade end x blade end
  
• Fuse Indicator: Non-indicating
  
• Special Feature: 70/30 brass end cap
  
• Length/Depth: 7.1 in
  
• Height: 1.56 in
  
• Width: 1.56 in
  
• Product Weight: 0.92 lb
  

Material Compliance and Certifications

For the KTN-R-150, the supplied manufacturer specifications list compliance as "Not Applicable." The provided product data states no additional material certifications or approval marks, so none are added or implied here. That's especially important for electrical components: details from a nearby model in the same product family shouldn't automatically carry over to this catalog number.

Where It Works Best

The Eaton Bussmann KTN-R-150 is well suited for replacement situations where the equipment documentation calls for a 150A Class RK1 fuse rated at 250 Vac or 250 Vdc and the required interrupt rating matches the applicable AC or DC specification. Its blade-end configuration, single-element construction, and 7.1 x 1.56 x 1.56-inch dimensions give maintenance personnel several additional points to check before installation.

A quick way to avoid mismatches is to work through the specification in order: start with KTN-R-150, confirm 150 amps and Class RK1, then check the 250V AC/DC rating, applicable interrupt rating, blade-end connection, and physical dimensions. That takes only a moment, but it gives the buyer far more useful information than a product page that merely repeats a manufacturer data table.