Eaton Bussmann

Bussmann FNQ-R-1/4 Class CC Time-Delay Fuse 0.25A 600VAC

SKU: LL1-BSM-FNQ-R-1/4*1

$6.13

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Bussmann FNQ-R-1/4 Class CC Time-Delay Fuse 0.25A 600VAC

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Eaton Bussmann

Bussmann FNQ-R-1/4 Class CC Time-Delay Fuse 0.25A 600VAC

SKU: LL1-BSM-FNQ-R-1/4*1

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$6.13

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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand	Bussmann (Eaton)
Model Number	FNQ-R-1/4
Product Category	Class CC Time-Delay Fuse
Product Series	LIMITRON FNQ-R
Current Rating	0.25 A (250 mA)
AC Voltage Rating	600 VAC
Fuse Class	Class CC
Operating Characteristic	Time-Delay (Slow-Blow)
Fuse Type	Current-Limiting High-Inrush Time-Delay Fuse
Interrupting Rating at 600 VAC	200 kA RMS Symmetrical (200,000 A)
Response Time	12 Seconds at 200% Rated Current (Eaton Product Specification)
Fuse Format	Class CC Midget Cartridge Fuse
Nominal Dimensions	10.3 x 38.1 mm (0.41 x 1.50 in)
Body Material	Melamine Tube
Terminal Configuration	Ferrule End x Ferrule End
Rejection Feature	Rejection-Style Fuse
Fuse Indication	Non-Indicating
Mounting Type	Requires Compatible Fuse Holder or Fuse Block
UPC	051712147002
EAN	5027590449656
UL Approval	UL Listed, UL 248-4, Class CC, File E4273
CSA Approval	CSA Certified, Class CC, File 53787-HRC-MISC
CE Compliance	CE Marked
RoHS Status	Not RoHS Compliant According to Eaton Technical Data 1014 (August 2015)
Protection Classification	Class CC Branch-Circuit Protection
Manufacturer Reference	Eaton Bussmann FNQ-R Technical Data 1014

Key Features

0.25 A Current Rating

Rated at one-quarter ampere (250 mA), the FNQ-R-1/4 is designed for compatible low-current electrical circuits requiring Class CC overcurrent protection.

600 VAC Voltage Rating

Supports appropriately specified AC electrical circuits operating at or below 600 VAC. The circuit voltage and installation conditions must comply with the fuse's applicable electrical ratings.

Time-Delay Performance

Designed to accommodate temporary inrush currents, including those associated with small control transformers. Eaton lists a response time of 12 seconds at 200% of rated current for this model.

200 kA Interrupting Capacity

Provides a manufacturer-specified 200,000 A RMS symmetrical interrupting rating at 600 VAC, supporting applications with appropriately evaluated prospective short-circuit current.

Current-Limiting Class CC Design

The FNQ-R series combines current-limiting performance with Class CC branch-circuit protection. Its rejection-style configuration is designed for compatible fuse holders and appropriately classified installations.

Compact Industrial Construction

Features a melamine tube body, non-indicating operation and ferrule end connections in a nominal 10.3 x 38.1 mm cartridge format for compatible industrial fuse holders.

Applications

Small industrial control transformer protection
Industrial control panels requiring Class CC fuses
Compatible low-current AC branch circuits
Electrical line protection applications
Control circuits with temporary transformer inrush currents
Industrial machinery control equipment
Compatible Class CC DIN-rail fuse holders and blocks
Exact-model industrial equipment fuse replacement

Purchase Information

We support online purchase of the Bussmann FNQ-R-1/4 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. Please note that Eaton Technical Data 1014 identifies FNQ-R-1/4 as an exception to the FNQ-R series RoHS compliance statement. If RoHS compliance is required for your application, verify the product's current compliance status before ordering.

Frequently Asked Questions

What is the Bussmann FNQ-R-1/4?
It is a 0.25 A, 600 VAC Class CC current-limiting time-delay cartridge fuse from the Eaton Bussmann FNQ-R series, designed for compatible branch-circuit and industrial control applications.

Who manufactures FNQ-R-1/4?
FNQ-R-1/4 belongs to the Eaton Bussmann product range. Its manufacturer catalog number is FNQ-R-1/4.

What is the current rating?
The rated current is 0.25 amperes, equivalent to 250 milliamperes or one-quarter ampere.

What is the AC voltage rating?
The published maximum AC voltage rating is 600 VAC. The application circuit must remain within the fuse's applicable voltage rating.

Is FNQ-R-1/4 a time-delay fuse?
Yes. It is a time-delay fuse intended to accommodate temporary inrush currents in compatible applications. Eaton's product specification lists a response time of 12 seconds at 200% of rated current.

What is the interrupting rating?
Eaton specifies a 200 kA RMS symmetrical interrupting rating at 600 VAC, equivalent to 200,000 amperes.

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-1/4 have a blown-fuse indicator?
No. FNQ-R-1/4 is a non-indicating cartridge fuse.

What material and connection type does this fuse use?
Eaton specifies a melamine tube body and ferrule-to-ferrule connections. The product also incorporates a Class CC rejection-style design.

Can FNQ-R-1/4 replace FNQ-1/4?
Do not assume interchangeability. FNQ-R-1/4 is a 600 VAC Class CC branch-circuit fuse with a 200 kA interrupting rating, whereas FNQ-1/4 belongs to the 500 VAC supplemental fuse series. Their protection classifications and installation requirements differ.

Is FNQ-R-1/4 RoHS compliant?
Eaton FNQ-R Technical Data 1014, effective August 2015, explicitly identifies FNQ-R-1/4 as not RoHS compliant. Confirm its current compliance status with Eaton if RoHS conformity is required.

What should be checked before ordering?
Confirm the exact FNQ-R-1/4 model number, 0.25 A current rating, 600 VAC voltage rating, 200 kA interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and any required compliance documentation. Refer to Eaton Bussmann FNQ-R Technical Data 1014.

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