FRN-R-2-1/2 FRN-R-2-1/2 is a 2.5A cartridge fuse rated for 250VAC/125VDC with slow blow characteristics. It is Class RK5 and requires a fuse holder for mounting.
Mfr Part #:

FRN-R-2-1/2

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
FRN-R-2-1/2 is a 2.5A cartridge fuse rated for 250VAC/125VDC with slow blow characteristics. It is Class RK5 and requires a fuse holder for mounting.
Total Stock: 23 pcs
$ Price Range: $43.08 - $48.07

FRN-R-2-1/2 Available from 1 distributor

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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23 pcs
23 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

FRN-R-2-1/2 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
Mounting Type
Response Time
Tape & Reel
Voltage Rating

FRN-R-2-1/2 Description

Short technical summary and product information.

The FRN-R-2-1/2 is a 2.5A cartridge fuse manufactured by Eaton Bussmann Electrical Division. It is rated for 250V AC and 125V DC operation, with a breaking capacity of 200kA at 250V AC and 20kA at 125V DC. The fuse features a slow blow (time-delay) response, making it suitable for applications with inrush currents. It belongs to Class RK5, which indicates a high interrupting rating and current-limiting capability.

 

This fuse requires a holder for mounting and has dimensions of 0.560" diameter by 2.000" length (14.22mm x 50.80mm). It is approved by CE, CSA, and UL, and is intended for electrical and industrial applications. The package type is cartridge, non-standard. RoHS compliance is indicated as RoHS3 compliant, but this is unverified.

 

Due to its high breaking capacity and slow blow characteristic, the FRN-R-2-1/2 is commonly used in motor protection circuits, transformers, and other equipment where temporary overloads may occur but sustained faults must be cleared quickly.

FRN-R-2-1/2 Quick Information

Product Type: Cartridge Fuse
Series: FRN-R
Canonical Name: FRN-R-2-1/2 Cartridge Fuse, 2.5A, 250VAC/125VDC, Slow Blow, Class RK5
Subcategory: Class RK5 Fuse

FRN-R-2-1/2 Compliance

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

FRN-R-2-1/2 Estimated Pricing

Qty Low High
1+ $48.07 $48.07
5+ $43.73 $43.73
10+ $43.45 $43.45
50+ $43.08 $43.08

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

FRN-R-2-1/2 Features

  • 2.5A current rating with slow blow response.
  • 200kA AC interrupting capacity at 250V.
  • Class RK5 current-limiting fuse design.
  • Requires fuse holder for installation.
  • Approved by UL, CSA, and CE.

FRN-R-2-1/2 Applications

  • Motor branch circuit protection applications.
  • Transformer and lighting panel protection.
  • Industrial control panels and equipment.
  • General purpose AC and DC circuits.
  • Overload and short circuit protection.

FRN-R-2-1/2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the FRN-R-2-1/2?

The FRN-R-2-1/2 is rated for 2.5A.

What is the voltage rating of the FRN-R-2-1/2?

250V AC and 125V DC.

What is the breaking capacity of the FRN-R-2-1/2?

200kA at 250V AC and 20kA at 125V DC.

What is the response time of the FRN-R-2-1/2 fuse?

The fuse has a slow blow (time-delay) response.

What package does the FRN-R-2-1/2 come in?

It is a cartridge, non-standard package with dimensions 0.560" x 2.000" (14.22mm x 50.80mm).

What is the fuse class of the FRN-R-2-1/2?

It is a Class RK5 fuse.

What are the approvals for the FRN-R-2-1/2?

It is approved by CE, CSA, and UL.

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