Bussmann FNQ-10 10A Time Delay Fuse Industrial Supplier

Eaton Bussmann FNQ-10 10A 500V Time-Delay Supplemental Fuse

Buy Eaton Bussmann FNQ-10 fuse online.The Eaton Bussmann FNQ-10 is a 10 amp, 500Vac time-delay supplemental midget fuse designed for motor control transformers and electrical circuits that experience temporary inrush current during normal operation.

Featuring a compact 13/32 inch × 1-1/2 inch cylindrical format, the FNQ-10 uses ferrule connections at both ends for installation in compatible midget fuse blocks, clips and fuse holders. Its time-delay operating characteristic helps accommodate temporary current surges while providing supplemental overcurrent protection for properly rated equipment.

Key Features

• Catalog Number: FNQ-10
• Rated Current: 10 A
• Rated Voltage: 500 Vac
• Operating Characteristic: Time-delay
• Protection Category: Supplemental fuse
• Interrupting Rating: 10 kA at 500 Vac
• Fuse Indicator: Non-indicating
• Connection: Ferrule end to ferrule end
• Nominal Size: 13/32 × 1-1/2 in
• Metric Size: 10.3 × 38.1 mm
• Series Identification: Orange color code for 500 Vac maximum voltage
• Construction: Fiber tube

Technical Specifications

Typical Applications

• Motor control transformers
• Circuits with temporary inrush current
• Industrial control equipment requiring supplemental protection
• Replacement applications that specifically call for FNQ-10
• Compatible midget fuse blocks, fuse clips and fuse holders

Time-Delay Performance for Inrush-Current Circuits

Motor control transformers and other inductive components may draw temporary inrush current when energized. A fuse without the required time-delay characteristic may open during normal startup, even when the circuit is operating as intended.

The FNQ-10 is designed with a time-delay response for circuits that experience temporary inrush current. This makes it suitable for applications where the equipment manufacturer specifies a 10 amp FNQ-series supplemental fuse.

Supplemental Overcurrent Protection

The Bussmann FNQ-10 is classified as a supplemental fuse. It is intended for supplemental protection within equipment or circuits where this fuse category is permitted.

It should not be used as a substitute for a required branch-circuit fuse. Before installation, verify the applicable electrical requirements, equipment documentation, system voltage and available fault current.

Compact Midget Fuse Format

The FNQ-10 uses the common 13/32 inch × 1-1/2 inch midget fuse format. Its ferrule terminals support installation in compatible midget fuse blocks, DIN-rail holders, panel-mount holders, in-line holders and approved fuse clips.

Physical fit alone does not confirm electrical compatibility. The selected holder must be rated for the required voltage, current, fuse dimensions and available fault current.

FNQ-10 and FNQ-R-10 Are Different Products

The FNQ-10 should not be confused with the FNQ-R-10. The FNQ-10 is a 500Vac supplemental midget fuse, while the FNQ-R product family consists of Class CC rejection-style fuses with different electrical and application characteristics.

Always verify the complete part number printed on the existing fuse or specified in the equipment documentation before ordering a replacement.

Standards and Compliance

• UL Listed to UL 248-14
• CSA Certified to CSA C22.2 No. 248.14
• CE marked
• RoHS compliant

Important Selection Information

Before purchasing, confirm the complete manufacturer catalog number FNQ-10, the required 10 amp rating, the 500Vac maximum voltage rating, the 10 kA interrupting rating and compatibility with the installed fuse holder.

Do not select a replacement fuse solely by amperage, appearance or physical dimensions. The voltage rating, fuse category, time-current characteristic and interrupting rating must also satisfy the equipment and circuit requirements.

Ordering Information

Order using the complete manufacturer part number Eaton Bussmann FNQ-10. Confirm the required quantity and all electrical specifications before purchase or installation.