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FRN-R-8 Eaton Bussmann FRN-R-8 is an 8A RK5 slow blow cartridge fuse rated 250VAC/125VDC with 200kA AC interrupting capacity.
Mfr Part #:

FRN-R-8

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton Bussmann FRN-R-8 is an 8A RK5 slow blow cartridge fuse rated 250VAC/125VDC with 200kA AC interrupting capacity.
✓ Total Stock: 26 pcs
$ Price Range: $37.83 - $44.94

FRN-R-8 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
26 pcs
On Request
26 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FRN-R-8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity @ Rated Voltage
Class
Current Rating (Amps)
Fuse Type
Industrial Grade
Mounting Type
Response Time
Tape & Reel
Voltage Rating
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FRN-R-8 Description

Short technical summary and product information.

The Eaton Bussmann FRN-R-8 is a 8 amp RK5 class cartridge fuse designed for overcurrent protection in electrical and industrial applications. It features a slow blow (time-delay) response characteristic, allowing it to tolerate temporary inrush currents without nuisance opening. The fuse is rated for 250VAC and 125VDC operation with a high interrupting capacity of 200kA AC and 20kA DC.

 

This fuse requires a separate holder for installation and comes in a non-standard cartridge package measuring 0.560 inches in diameter by 2.000 inches in length (14.22mm x 50.80mm). It carries approvals from CE, CSA, and UL, indicating compliance with major safety standards.

 

The FRN-R series is commonly used in motor circuits, feeders, and branch circuit protection where time-delay characteristics are needed. The RK5 class provides a degree of current limitation while offering a compact footprint compared to larger fuse classes.

FRN-R-8 Quick Information

Product Type: Cartridge Fuse
Series: RK5
Canonical Name: Eaton Bussmann FRN-R-8 8A RK5 Slow Blow Cartridge Fuse, 250VAC/125VDC
Subcategory: RK5 Class Fuse

FRN-R-8 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FRN-R-8 Estimated Pricing

Qty Low High
1+ $44.94 $44.94
5+ $38.73 $38.73
10+ $37.83 $37.83

Estimated market price range - modelled values for guidance only, not live distributor offers.

FRN-R-8 Features

  • Rated 8A continuous current.
  • 250VAC / 125VDC voltage rating.
  • 200kA AC interrupting capacity.
  • Slow blow (time-delay) response.
  • RK5 class cartridge fuse.

FRN-R-8 Applications

  • Branch circuit protection in panelboards.
  • Motor circuit overcurrent protection.
  • Feeder protection in industrial controls.
  • Transformer and lighting panel protection.

FRN-R-8 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the FRN-R-8?

The FRN-R-8 is rated for 8 amps continuous current.

What are the voltage ratings for this fuse?

It is rated for 250VAC and 125VDC operation.

What is the interrupting capacity of the FRN-R-8?

The FRN-R-8 has a breaking capacity of 200kA AC and 20kA DC.

Is this a fast-acting or slow-blow fuse?

It is a slow blow (time-delay) fuse.

What is the physical size of this fuse?

The fuse measures 0.560 inches diameter by 2.000 inches length (14.22mm x 50.80mm).

What mounting method does this fuse require?

This fuse requires a separate holder for installation; it is not direct mount.

What safety approvals does the FRN-R-8 carry?

It is approved by CE, CSA, and UL.

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