Eaton Bussmann

Bussmann FNQ-9 Time-Delay Midget Fuse 9A 500VAC

SKU: LL1-BSM-FNQ-9*1

$6.98

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Bussmann FNQ-9 Time-Delay Midget Fuse 9A 500VAC

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Eaton Bussmann

Bussmann FNQ-9 Time-Delay Midget Fuse 9A 500VAC

SKU: LL1-BSM-FNQ-9*1

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$6.98

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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand	Bussmann (Eaton)
Model Number	FNQ-9
Manufacturer Catalog Number	FNQ-9
Product Category	Time-Delay Midget Fuse
Fuse Series	FNQ
Current Rating	9 A
AC Voltage Rating	500 VAC
Operating Characteristic	Time-Delay (Slow-Blow)
Fuse Format	Midget Cartridge Fuse (5AG)
Nominal Dimensions	10.3 x 38.1 mm (13/32 x 1-1/2 in)
Mounting Type	Requires Compatible Fuse Holder
Termination Style	Ferrule End x Ferrule End
Fuse Indication	Non-Indicating
Interrupting Rating at 500 VAC	10 kAIC (10,000 A)
Fuse Body Construction	Fiber Tube (FNQ Series Specification)
End Cap Material	Nickel-Plated Bronze (Eaton Product Specification)
Series End Cap Construction	Nickel-Plated Brass (FNQ Technical Data 1012)
Series Color Code	Orange (500 VAC Maximum)
UPC	051712786331
EAN	5027590407694
UL Approval	UL Listed, UL 248-14, File E19180
CSA Approval	CSA Certified, C22.2 No. 248.14, File 53787
Compliance	CE Marked; RoHS Compliant
Protection Type	Supplemental Overcurrent Protection
Manufacturer Reference	Eaton Bussmann FNQ Technical Data 1012

Key Features

9 A Current Rating

Rated at 9 amperes, the FNQ-9 provides supplemental overcurrent protection for appropriately specified industrial electrical control circuits, motor control transformers and compatible equipment.

500 VAC Voltage Rating

Designed for compatible AC circuits operating at or below its published maximum voltage rating of 500 VAC. Orange series color coding identifies the FNQ voltage class.

Time-Delay Operation

Its time-delay characteristic helps accommodate temporary inrush currents associated with motor control transformers and other compatible inductive loads. Select the fuse using the manufacturer's published time-current characteristics.

10 kA Interrupting Rating

Provides a manufacturer-specified interrupting capacity of 10,000 amperes at 500 VAC. The available short-circuit current at the installation must not exceed this applicable interrupting rating.

Compact Midget Cartridge Design

Uses a nominal 10.3 mm diameter and 38.1 mm length cylindrical fuse format for installation in appropriately rated and dimensionally compatible midget fuse holders or fuse blocks.

Industrial Ferrule Construction

Features a non-indicating cartridge design and ferrule end connections. Eaton's FNQ-9 product specification identifies nickel-plated bronze end caps, while the FNQ series technical data describes fiber tube construction and nickel-plated brass end caps.

Applications

Motor control transformer supplemental protection
Industrial AC control circuits with temporary inrush currents
Compatible control transformer primary circuits
Industrial machinery electrical control panels
Electrical equipment requiring a 9 A time-delay fuse
Compatible inductive electrical control circuits
Compatible DIN-rail midget fuse holders and fuse blocks
Industrial equipment maintenance and specified fuse replacement

Purchase Information

We support online purchase of the Bussmann FNQ-9 Time-Delay Midget 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-9?
It is a 9 A, 500 VAC time-delay midget cartridge fuse from the Eaton Bussmann FNQ series, intended for supplemental overcurrent protection in compatible industrial control circuits.

Who manufactures FNQ-9?
FNQ-9 belongs to the Eaton Bussmann fuse range. Its manufacturer catalog number is FNQ-9.

What is the rated current?
The rated current is 9 amperes, equivalent to 9000 milliamperes.

What is the AC voltage rating?
The maximum published AC voltage rating is 500 VAC. The application circuit voltage must remain within the applicable fuse rating.

Is FNQ-9 a fast-acting fuse?
No. FNQ-9 is a time-delay fuse designed for compatible circuits where temporary inrush currents may occur. Its suitability should be evaluated using the manufacturer's published time-current characteristics.

What is the interrupting rating at 500 VAC?
Eaton specifies a 10 kA interrupting rating at 500 VAC for FNQ-9, equivalent to 10,000 amperes.

What are the physical dimensions?
The nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 13/32 inch by 1-1/2 inches.

Does FNQ-9 have a blown-fuse indicator?
No. The standard FNQ-9 is a non-indicating cartridge fuse.

What materials and terminals does FNQ-9 use?
Eaton's FNQ-9 product specification identifies nickel-plated bronze end caps and ferrule-to-ferrule connections. FNQ series Technical Data 1012 describes fiber tube construction and nickel-plated brass end caps. Confirm the exact end-cap alloy with Eaton if material composition is critical.

Can FNQ-9 replace an FNQ-R-9 fuse?
Do not assume these models are interchangeable. FNQ is a 500 VAC supplemental fuse series with a 10 kA interrupting rating, whereas FNQ-R is a 600 VAC Class CC series with different protection classifications and installation requirements.

Can FNQ-9 be used for branch-circuit protection?
FNQ-9 is intended for supplemental overcurrent protection. Applications requiring branch-circuit protection must use an appropriately classified protective device with a suitable interrupting rating.

What should be verified before ordering?
Confirm the exact FNQ-9 model number, 9 A current rating, 500 VAC voltage rating, 10 kA interrupting capacity, time-delay characteristics, cartridge dimensions and fuse-holder compatibility. Consult Eaton Bussmann FNQ Technical Data 1012 for application specifications.

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