Reference images. Contact us for photos of the available unit.


Littelfuse

FLNR.500

Littelfuse Class RK5 Dual Element Time Delay Fuse 0.5A 250VAC 125VDC


Voltage: 250VConnection: Ferrule Rejection
Choose your condition
Compare New & Re-Certified

New
Original equipment manufacturer (OEM) products that have never been energized. New items may come in their original factory packaging or may be unused components removed from new panels. Packaging and cosmetic appearance can vary; contact our team for details or photos of the available unit.

Re-Certified
Original equipment manufacturer (OEM) products that have previously been energized and have been inspected, tested, and recertified for return to service. These items may show signs of prior use. Contact our team for details about the unit’s condition, testing documentation, and applicable warranty.

Ask about this part →
Price:
Sale price$29.98 Regular price$45.52
Save $15.54
Stock:
10 In stock, ready to be shipped

Need it urgently? Call to confirm shipping options

Buying for a project? Request a quote

Same-Day Shipping

Most items ship same-day if ordered by 12:30 PM PST.

Product Description & Specifications

Confirm the complete catalog number and application requirements before ordering. The specifications below reflect the product information available for this listing.

Manufacturer
Littelfuse
Sub-Category
Low Voltage Fuse
Series
FLNR Series - UL Class RK5 Dual-Element Time-Delay Fuses
Frame
FLNR Series - UL Class RK5 Dual-Element Time-Delay Fuses
Voltage
250V
Interrupting rating
200kA@250V
Connection
Ferrule Rejection
Class rating
RK5
Barrels
1
Diameter
0.56 in
Country of origin
Mexico
Amperage
0.5
Velocity
TD - Time Delay
UPC
079458150247
Show all specifications (4 more)
GTIN
00079458150247
Dimensions
x 2 in x
Weight
17.4
Certification
CE, UL 248-12 Class RK5, CSA Certification, QPL-W-F-1814
Product description & additional details

FLNR.500


FLNR.500 is a Class RK5 dual element time delay fuse designed for general purpose circuit protection. This fuse provides reliable overload and short-circuit protection with a current rating of 0.5A and voltage ratings of 250VAC and 125VDC. The dual element design ensures advanced protection for a wide range of applications. The FLNR.500 fuse features a knife-blade style construction and is suitable for use in fuse blocks, clips, or holders. It is a current limiting fuse with a high interrupting rating, making it ideal for demanding electrical environments. The fuse is UL Listed and CSA Certified, meeting all relevant safety standards for industrial and commercial use.
  • Part Number: FLNR.500
  • Manufacturer: Littelfuse
  • Fuse Class: Class RK5
  • Amperage: 0.5A
  • AC Voltage Rating: 250V
  • DC Voltage Rating: 125V
  • Interrupting Rating: 200kA AC, 20kA DC
  • Mounting Type: Knife-Blade
  • Series: FLNR
  • Response Type: Time Delay
  • Element Type: Dual Element
  • Certifications: UL Listed, CSA Certified
At Essential Parts, we offer fast shipping, lowest price, and expert support to help you get the right product every time.

Specifications

  • Part Number: FLNR.500
  • Manufacturer : Littelfuse
  • Brand : Littelfuse
  • Category : Fuse
  • Item Subcategory : Low Voltage Fuse
  • Family : FLNR Series - UL Class RK5 Dual-Element Time-Delay Fuses
  • Type : FLNR Series - UL Class RK5 Dual-Element Time-Delay Fuses
  • Voltage : 250
  • Amperage : 0.5
  • AIC rating : 200kA@250V
  • Connection : Ferrule Rejection
  • Diameter : 0.56
  • Class Rating : RK5
  • Barrels : 1
  • Velocity : TD - Time Delay

Product Data

  • UPC : 079458150247
  • GTIN : 00079458150247
  • Country of Origin : Mexico
  • Dimensions : x 2 in x
  • Weight : 17.4
  • Certification : CE, UL 248-12 Class RK5, CSA Certification, QPL-W-F-1814

Return eligibility: what to know before ordering

Return requests must be made within 30 days of shipping and require authorization. Used, installed, energized, or tested items are not eligible. A restocking fee of up to 35% may apply. Review the full policy before purchase.

Product-specific restrictions apply. International orders are non-cancellable and non-refundable under the policy.

Read the complete return and warranty policy ↗

Warranty supplied by Essential Electric

Warranty coverage is provided by Essential Electric, subject to the product and policy terms. Essential Electric is an independent supplier. Surplus or discontinued inventory may not qualify for the original manufacturer’s warranty.

Review coverage, exclusions, and the claim process ↗

Hear from other buyers.

What customers say about ordering from Essential Electric.

Reviews for this product

You may also like

Save $200.45
default product icon JLLN-300 Littelfuse Powr-Gard Low Voltage Fuse
 300V  300A Fuse - Essential Electric Supply
Save $61.99
default product icon CCMR-050 Littelfuse Powr-Gard Low Voltage Fuse
 600V  50A Fuse - Essential Electric Supply
CCMR-050 - Littelfuse 50 Amp 600V AC Class CC Time Delay Fuse Dual Element
Sale price $60.89 Regular price $122.88
In stock
Save $7.34
default product icon CNN400 OZ/Gedney CNN Low Voltage Fuse
 130V  400A Fuse - Essential Electric Supply
CNN400 - Littelfuse 400A 48VDC CNN Series Very Fast Acting Bolt-Down Fuse
Sale priceFrom $0.00 Regular price $7.34
In stock
Choose options
Save $136.94
default product icon CNN600 OZ/Gedney CNN Low Voltage Fuse
 130V  600A Fuse - Essential Electric Supply
Save $144.45
default product icon JLLN-400 Littelfuse Powr-Gard Low Voltage Fuse
 300V  400A Fuse - Essential Electric Supply
JLLN-400 - Littelfuse 400 Amp 300 Volt AC Class T Fast Acting Fuse
Sale price $80.43 Regular price $224.88
In stock
Save $1,040.63
default product icon JLLN-800 Littelfuse Powr-Gard Low Voltage Fuse
 300V  800A Fuse - Essential Electric Supply
JLLN-800 - Littelfuse 800A 300V Class T Fast Acting Knife-Blade Fuse
Sale price $229.49 Regular price $1,270.12
In stock
Save $183.07
default product icon JLLN-250 Littelfuse Powr-Gard Low Voltage Fuse
 300V  250A Fuse - Essential Electric Supply
Save $271.16
default product icon JLLS-225 Littelfuse Powr-Gard Low Voltage Fuse
 600V  225A Fuse - Essential Electric Supply
JLLS-225 - Littelfuse 225A 600VAC/300VDC Class T Fast Acting Fuse
Sale price $130.96 Regular price $402.12
In stock
Save $276.59
default product icon JLS-200 Littelfuse  Low Voltage Fuse
    Fuse - Essential Electric Supply
JLS-200 - Littelfuse 200 Amp 600 Volt Class J Fast Acting Fuse Knife-Blade
Sale price $86.69 Regular price $363.28
In stock