Eaton Bussmann

Bussmann FNQ-R-1-1/4 Class CC Time-Delay Fuse 1.25A 600VAC

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

$6.13

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Bussmann FNQ-R-1-1/4 Class CC Time-Delay Fuse 1.25A 600VAC

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Eaton Bussmann

Bussmann FNQ-R-1-1/4 Class CC Time-Delay Fuse 1.25A 600VAC

SKU: LL1-BSM-FNQ-R-1-1/4*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-1-1/4
Product Category	Class CC Time-Delay Fuse
Product Series	LIMITRON FNQ-R
Current Rating	1.25 A (1250 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
Fuse Element	Dual-Element
Interrupting Rating at 600 VAC	200 kA RMS Symmetrical (200,000 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)
Body Material	Melamine Tube
Terminal Configuration	Ferrule End x Ferrule End
Special Feature	Rejection-Style Design
Fuse Indication	Non-Indicating
Mounting Type	Compatible Class CC Fuse Holder or Fuse Block
UPC	051712496940
EAN	5027590407540
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 Compliance	RoHS Compliant
Protection Classification	Class CC Branch-Circuit Protection
Manufacturer Reference	Eaton Bussmann FNQ-R Technical Data 1014

Key Features

1.25 A Current Rating

Rated at 1.25 amperes, the Bussmann FNQ-R-1-1/4 provides Class CC overcurrent protection for appropriately designed industrial control circuits, small control transformers and compatible electrical equipment.

600 VAC Voltage Rating

Designed for compatible AC electrical circuits operating at or below 600 VAC, supporting appropriately specified industrial control and branch-circuit protection applications.

High-Inrush Time-Delay Performance

Its time-delay characteristic accommodates temporary magnetizing inrush currents associated with compatible small control transformers. Eaton specifies a response time of 12 seconds at 200% of rated current for this model.

200 kA Interrupting Capacity

Provides a manufacturer-specified interrupting rating of 200,000 amperes RMS symmetrical at 600 VAC for properly engineered electrical circuits with evaluated available short-circuit current.

Current-Limiting Class CC Design

Combines current-limiting performance with Class CC branch-circuit protection. The rejection-style configuration supports installation in compatible fuse holders and helps prevent inappropriate fuse substitution in rejection-style holders.

Compact Melamine Cartridge

Features a melamine tube body, dual-element construction, non-indicating operation and ferrule end connections in a nominal 10.3 x 38.1 mm cartridge format.

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 fuse holders and fuse blocks
Exact-model industrial equipment fuse replacement

Purchase Information

We support online purchase of the Bussmann FNQ-R-1-1/4 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.

Frequently Asked Questions

What is the Bussmann FNQ-R-1-1/4?
It is a 1.25 A, 600 VAC Class CC current-limiting time-delay cartridge fuse from the Eaton Bussmann LIMITRON FNQ-R series, designed for compatible industrial control and branch-circuit protection applications.

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

What is the current rating?
The rated current is 1.25 amperes, equivalent to 1250 milliamperes or one and one-quarter amperes.

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

Is FNQ-R-1-1/4 a time-delay fuse?
Yes. It is a high-inrush time-delay fuse intended for compatible circuits with temporary inrush currents. Eaton 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-1-1/4 have a blown-fuse indicator?
No. Eaton identifies FNQ-R-1-1/4 as a non-indicating cartridge fuse without a built-in visual blown-fuse indicator.

What material and terminal configuration does this fuse use?
Eaton specifies a melamine tube body with ferrule-to-ferrule connections. The fuse incorporates dual-element and Class CC rejection-style construction.

Can FNQ-R-1-1/4 replace an FNQ series fuse?
Do not assume interchangeability based on current rating or physical size alone. FNQ-R-1-1/4 is a 600 VAC Class CC branch-circuit fuse with a 200 kA interrupting rating, while the FNQ series uses a 500 VAC supplemental protection classification. Confirm electrical and holder compatibility before replacement.

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

What should be verified before ordering?
Confirm the exact FNQ-R-1-1/4 catalog number, 1.25 A current rating, 600 VAC voltage rating, 200 kA interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and applicable circuit protection requirements. Consult Eaton Bussmann FNQ-R Technical Data 1014.

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