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Eaton Bussmann

Bussmann FNQ-R-15 Class CC Time-Delay Fuse

SKU: LL1-BSM-FNQ-R-15*1
$6.13
Available
Eaton Bussmann

Bussmann FNQ-R-15 Class CC Time-Delay Fuse

SKU: LL1-BSM-FNQ-R-15*1
PRODUCT PRICE USD
$6.13
Available to order
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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand Bussmann (Eaton)
Model Number FNQ-R-15
Product Category Class CC Time-Delay Fuse
Product Series LIMITRON FNQ-R
Current Rating 15 A
AC Voltage Rating 600 VAC
DC Voltage Rating 300 VDC
Fuse Class Class CC
Operating Characteristic Time-Delay (Slow-Blow)
Fuse Type Current-Limiting Time-Delay Cartridge Fuse
Fuse Element Dual-Element
AC Interrupting Rating 200 kA RMS Symmetrical at 600 VAC (200,000 A)
DC Interrupting Rating 20 kA at 300 VDC (20,000 A)
Response Time 12 Seconds at 200% of Rated Current (Eaton Product Specification)
Fuse Format Class CC Cartridge Fuse
Nominal Dimensions 10.3 x 38.1 mm (0.41 x 1.50 in)
Product Length 38.1 mm (1.50 in)
Product Diameter 10.3 mm (0.41 in)

Key Features

15 A Current Rating

Rated at 15 amperes, the Bussmann FNQ-R-15 provides Class CC overcurrent protection for appropriately specified industrial control circuits, small control transformers and compatible electrical equipment requiring a 15 A time-delay fuse.

600 VAC and 300 VDC Ratings

Supports appropriately designed AC circuits up to 600 VAC and DC circuits up to 300 VDC. Unlike many other current ratings in the FNQ-R series, the 15 A model has a manufacturer-specified DC voltage rating, making it suitable for compatible AC or DC applications.

High-Inrush Time-Delay Performance

The time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with compatible small control transformers. Eaton specifies a response time of 12 seconds at 200% of rated current. Selection should consider the complete published time-current curves and application conditions.

High AC and DC Interrupting Capacity

Provides an interrupting rating of 200 kA RMS symmetrical at 600 VAC and 20 kA at 300 VDC. These ratings support appropriately engineered circuits where the available prospective fault current is within the applicable AC or DC interrupting capacity.

Current-Limiting Class CC Design

Combines current-limiting performance with Class CC branch-circuit protection. Its rejection-style cartridge construction supports installation in appropriately selected Class CC fuse holders and helps prevent the use of incompatible supplemental fuses in rejection-style holders.

Compact Industrial Cartridge

Features a melamine tube body, dual-element construction, nickel-plated brass end caps and ferrule connections. The non-indicating 10.3 x 38.1 mm cartridge format is designed for installation in compatible Class CC fuse holders and fuse blocks.

Applications

  • Small industrial control transformer protection
  • Industrial control panels requiring Class CC fuses
  • Compatible 600 VAC branch-circuit protection
  • Compatible DC circuits rated up to 300 VDC
  • Industrial electrical line protection
  • Control circuits with temporary transformer inrush currents
  • Compatible Class CC fuse holders and fuse blocks
  • Exact-model industrial equipment fuse replacement

Purchase Information

We support online purchase of the Bussmann FNQ-R-15 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.

Frequently Asked Questions

What is the Bussmann FNQ-R-15?
It is a 15 A Class CC current-limiting time-delay cartridge fuse from the Eaton Bussmann LIMITRON FNQ-R series. The model is rated for 600 VAC and 300 VDC and is intended for compatible industrial control, line protection and branch-circuit applications.


Who manufactures FNQ-R-15?
FNQ-R-15 belongs to the Eaton Bussmann product range. Its manufacturer catalog number is FNQ-R-15.


What is the current rating?
The rated current is 15 amperes, equivalent to 15,000 milliamperes.


Can FNQ-R-15 be used in both AC and DC circuits?
Yes. Eaton specifies a maximum voltage rating of 600 VAC and 300 VDC for FNQ-R-15. Circuit voltage, available fault current, fuse-holder compatibility and the applicable protection requirements must all be checked before use.


What are the AC and DC interrupting ratings?
The AC interrupting rating is 200 kA RMS symmetrical at 600 VAC. The DC interrupting rating is 20 kA at 300 VDC. These are separate ratings and must not be interchanged.


Is FNQ-R-15 a time-delay fuse?
Yes. Eaton identifies FNQ-R-15 as a dual-element, current-limiting time-delay fuse. Its product specification lists a response time of 12 seconds at 200% of rated current. Actual opening behavior depends on the applied overcurrent and operating conditions.


What are the physical dimensions?
The nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.


Does FNQ-R-15 have a blown-fuse indicator?
No. FNQ-R-15 is a non-indicating cartridge fuse without a built-in visual blown-fuse indicator.


What materials and terminal configuration does FNQ-R-15 use?
Eaton specifies a melamine tube body with ferrule-to-ferrule connections. FNQ-R series product information also describes nickel-plated brass end caps and rejection-style Class CC construction.


Can FNQ-R-15 replace FNQ-15?
Do not assume interchangeability based only on current rating or physical dimensions. FNQ-R-15 is a Class CC branch-circuit fuse rated for 600 VAC and 300 VDC, while the FNQ supplemental fuse series has different electrical and protection characteristics. Verify the exact catalog designation, fuse class, holder compatibility and manufacturer time-current curves before replacement.


Is FNQ-R-15 RoHS compliant?
Yes. Eaton identifies FNQ-R-15 as RoHS compliant and CE marked. Eaton FNQ-R Technical Data 1014 specifies FNQ-R-1/4 as the exception to the series RoHS statement, not FNQ-R-15.


What should be verified before ordering?
Confirm the exact FNQ-R-15 catalog number, 15 A current rating, 600 VAC or 300 VDC circuit requirement, 200 kA AC or 20 kA DC interrupting rating, time-delay characteristics, Class CC fuse-holder compatibility and applicable circuit protection requirements. Refer to Eaton Bussmann FNQ-R Technical Data 1014 for detailed application guidance.

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