Eaton Bussmann FRN-R-400 400A Dual Element Fuse – Class RK5 – 250VAC / 125VDC – Blade End – Finger Safe

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SKU: FRN-R-400 GTIN/UPC: 051712507530
Regular price $88.20
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The Eaton Bussmann FRN-R-400 is a dual-element Class RK5 fuse designed for dependable overcurrent protection in industrial and commercial electrical systems. Rated at 400A, it provides time-delay performance to withstand temporary inrush currents while protecting against sustained overloads and short circuits. With a finger-safe design and blade end connections, it ensures enhanced safety and reliable installation in motor circuits and general-purpose power distribution applications.

Voltage and Rating

  • Current Rating: 400A
  • Voltage Rating: 250VAC / 125VDC
  • Interrupt Rating: 200 kAIC @ 250VAC, 20 kAIC @ 125VDC
  • Response Time: 10 seconds @ 500% load

Key Specifications

  • Manufacturer: Eaton Bussmann
  • Catalog Number: FRN-R-400
  • Product Type: Fuse
  • Class: Class RK5
  • Number of Elements: Dual Element
  • Fuse Indicator: Non-Indicating
  • Connection Type: Blade End x Blade End
  • Special Features: Finger Safe
  • Application: Motor Circuits, General Circuit Protection

Technical Specifications

  • Time-Delay Function: Supports inrush current handling
  • Construction Type: Industrial Grade Fuse
  • Packaging Type: Standard
  • Compliance: CE Marked

Physical Details

  • Product Length/Depth: 8.63 in
  • Product Height: 2.06 in
  • Product Width: 2.06 in

Product Data

  • Manufacturer: Eaton Bussmann
  • UPC: 051712507530
  • EAN: 5027590060813
  • Model Number: FRN-R-400
  • Category: Fuses
  • Subcategory: Class RK5 Fuse
  • Product Weight: 1.6 lb
  • Warranty: Not Applicable


  • Type Circuit Breakers
  • Vendor Eaton Bussmann
  • Brand Eaton Bussmann

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You may return items within 30 days of delivery for a refund.

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