Which Fuse for an HVAC Unit FLNR60 or FRN-R60
What is the difference between a FLNR 60 Fuse and a FRN-R 60 Fuse?
Replace a Blown HVAC Fuse
Electrical Question: What is the difference between a FLNR 60 Fuse and a FRN-R 60 Fuse?
I found a blown fuse in my fuse Box for my HVAC unit. I am looking to find out the difference in the type of coding between FLNR 60 and FRN-R 60. From checking the product descriptions there does not seem to be a difference and the only thing I can figure is that it’s attributable to differing brands.
I just need confirmation.
This electrical wiring question came from James, a Homeowner in Maryland.
James, Thank You for Visiting Ask-the-Electrician!
Thanks for your electrical wiring question James.
Which Fuse for an HVAC Unit
Application: Blown Fuse for a HVAC Unit.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Licensed HVAC Contractor.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the , turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in Maryland. A permit and inspections may also be required.
Fuse Types FLNR and FRN Class RK5 Dual Element Time Delay Fuse
This electrical wiring project is about Blown Fuse for an HVAC unit.
Replacing a HVAC Unit Blown Fuse
- James, from the information you have provided, I see that both of these UL Class RK5 Fuses are very similar with few exceptions, notes as follows:
- The FLNR UL Class RK5 Fuse is a General Purpose fuse which provides short circuit and overload protection for all types of circuits especially those containing motors.
- The FRN-R UL Class RK5 Fuse also provides motor overload and Ground Fault and Short-Circuit protection, and also helps protect motors against burnout from overloads.
- Either fuse will work for an HVAC Unit, However, check the HVAC Unit Specifications Nameplate to see if a specific fuse is listed for your specific unit.
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