Eaton Bussmann

Bussmann FNQ-1/2 Time-Delay Midget Fuse 500mA 500VAC

SKU: LL1-BSM-FNQ-1/2*1

$6.98

Available

PRODUCT GALLERY 01 / 2

Bussmann FNQ-1/2 Time-Delay Midget Fuse 500mA 500VAC

✓ Product images for part identification

Eaton Bussmann

Bussmann FNQ-1/2 Time-Delay Midget Fuse 500mA 500VAC

SKU: LL1-BSM-FNQ-1/2*1

PRODUCT PRICE USD

$6.98

Available to order

Select Option Choose your purchase option

Quantity

Request a Quote

Need multiple units or help confirming a model? Contact our team.

↗ Free U.S. Shipping Standard delivery

↻ 30-Day Returns Subject to return policy

▤ Bulk Purchase Request volume quotes

✓ Secure Checkout Shopify-powered checkout

PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand	Bussmann (Eaton)
Model Number	FNQ-1/2
Manufacturer Catalog Number	FNQ-1/2
Product Category	Time-Delay Midget Fuse
Fuse Series	FNQ
Current Rating	0.5 A (500 mA)
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 Caps
Fuse Indication	Non-Indicating
Interrupting Rating at 500 VAC	10 kAIC (10,000 A)
Fuse Body Construction	Fiber Tube (FNQ Series Specification)
End Cap Construction	Nickel-Plated Brass (FNQ Series Technical Data)
End Cap Material in Product Specification	Nickel-Plated Bronze
Series Color Code	Orange (500 VAC Maximum)
UPC	051712786225
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

500 mA Current Rating

Rated at 0.5 A (500 mA), the FNQ-1/2 provides supplemental overcurrent protection for appropriately specified low-current industrial electrical control circuits.

500 VAC Voltage Rating

Designed for compatible AC equipment and control circuits operating within the published maximum voltage rating of 500 VAC. The FNQ series uses an orange voltage-class color code.

Time-Delay Operation

Helps accommodate temporary inrush currents associated with motor control transformers and other compatible inductive loads, subject to the manufacturer's published time-current characteristics.

10 kA Interrupting Rating

Provides a published interrupting capacity of 10,000 A at 500 VAC. The available short-circuit current at the installation must not exceed the applicable fuse interrupting rating.

Compact Midget Fuse Format

Features nominal dimensions of 10.3 mm in diameter and 38.1 mm in length for use with appropriately rated and dimensionally compatible midget cartridge fuse holders.

Industrial Cartridge Construction

Combines FNQ series fiber tube construction, non-indicating operation and nickel-plated ferrule end caps for use in compatible industrial control equipment.

Applications

Motor control transformer supplemental protection
Industrial AC control circuits with temporary inrush currents
Compatible low-current transformer primary circuits
Industrial electrical control panels
Electrical equipment requiring a 500 mA time-delay fuse
Industrial automation control circuit maintenance
Compatible DIN-rail midget fuse holders and blocks
Electrical equipment servicing and specified fuse replacement

Purchase Information

We support online purchase of the Bussmann FNQ-1/2 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-1/2?
It is a 500 mA, 500 VAC time-delay midget cartridge fuse from the Eaton Bussmann FNQ series, intended for supplemental overcurrent protection.

Who manufactures FNQ-1/2?
FNQ-1/2 is part of the Eaton Bussmann fuse range. Its manufacturer catalog number is FNQ-1/2.

What is the rated current?
The rated current is 0.5 amperes, equivalent to 500 milliamperes or one-half of an ampere.

What is the AC voltage rating?
The published maximum voltage rating is 500 VAC. The FNQ series uses orange as its voltage-class color code.

Is FNQ-1/2 a fast-acting fuse?
No. FNQ-1/2 is a time-delay fuse intended for applications where temporary inrush currents may occur. Its suitability should be checked against the manufacturer's time-current characteristics.

What is the interrupting rating at 500 VAC?
Eaton specifies a 10 kA interrupting rating at 500 VAC for FNQ-1/2, 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-1/2 have a blown-fuse indicator?
No. The standard FNQ-1/2 is a non-indicating cartridge fuse.

What materials are used in this fuse?
Eaton FNQ Technical Data 1012 describes fiber tube construction and nickel-plated brass end caps for the series. The individual Eaton FNQ-1/2 product specification describes nickel-plated bronze end caps.

Can FNQ-1/2 replace an FNQ-R-1/2 fuse?
Do not assume these models are interchangeable. FNQ is a 500 VAC supplemental fuse series, whereas FNQ-R is a Class CC fuse series with different protection classifications and application requirements.

Can FNQ-1/2 be used for branch-circuit protection?
FNQ-1/2 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-1/2 model number, 500 mA current rating, 500 VAC voltage rating, 10 kA interrupting capacity, time-delay characteristics, physical dimensions and fuse-holder compatibility. Refer to Eaton Bussmann FNQ Technical Data 1012 for series specifications.

Need help confirming a model?

Send us your part number and technical requirements.

Contact Our Team