Eaton Bussmann FNQ-R-2 Series Time-delay Fuse 2A 600V

Eaton Bussmann FNQ-R-2 2A Class CC Time-Delay Fuse

Buy Eaton Bussmann FNQ-R-2 fuse online.The Eaton Bussmann FNQ-R-2 is a 2 amp, 600Vac Class CC time-delay current-limiting fuse designed for small control transformers, industrial control circuits, branch circuits and line protection applications.

Part of the Bussmann series LIMITRON™ FNQ-R family, this dual-element fuse combines high-inrush time-delay performance with rapid current limitation during short-circuit conditions. Its compact Class CC construction is suitable for industrial and commercial electrical systems that require dependable overcurrent protection and a high interrupting rating.

Key Features

• Catalog Number: FNQ-R-2
• Rated Current: 2 A
• Rated Voltage: 600 Vac
• Fuse Class: Class CC
• Operating Characteristic: Time-delay
• Fuse Construction: Dual-element
• Protection Type: Current-limiting
• Interrupting Rating: 200 kAIC at 600 Vac
• Published Response: 12 seconds at 200% rated current
• Special Feature: Rejection-style construction
• Fuse Indicator: Non-indicating
• Connection: Ferrule end to ferrule end
• Body Material: Melamine tube
• Dimensions: 1.50 × 0.41 × 0.41 in

Technical Specifications

Typical Applications

• Small control transformer protection
• Industrial control panels
• Branch circuit protection
• Line protection
• Machine control circuits
• Relay and contactor circuits
• Factory automation equipment
• Commercial and industrial electrical systems

Time-Delay Protection for High-Inrush Circuits

Small control transformers, relays, contactors and other inductive components can draw temporary inrush current when energized. A fuse without an appropriate time-delay characteristic may open during normal startup even when no damaging fault is present.

The Bussmann FNQ-R-2 is designed to accommodate normal short-duration inrush conditions while maintaining protection against sustained overcurrent. Its published response is 12 seconds at 200% of rated current, making it suitable for applications that specifically require a 2 amp Class CC time-delay fuse.

Class CC Current-Limiting Performance

During a high-level short circuit, the FNQ-R-2 limits the amount of fault current allowed to pass through the circuit. This current-limiting action helps reduce thermal and mechanical stress on conductors, control transformers, switching devices and other downstream electrical components.

The fuse provides an interrupting rating of 200 kA at 600 Vac. The system voltage and available fault current must remain within the published ratings of both the fuse and the installed fuse holder.

Rejection-Style Class CC Design

The FNQ-R-2 incorporates a Class CC rejection feature. When used with a compatible rejection-style fuse holder, this design helps prevent the installation of lower-rated supplemental midget fuses that do not provide the same Class CC branch-circuit protection.

The rejection-style FNQ-R fuse can be installed in compatible standard or rejection-style Class CC holders. Always confirm the holder voltage, current, interrupting rating, mounting method and terminal configuration before installation.

Compact Industrial Fuse Format

The FNQ-R-2 measures approximately 1.50 inches long and 0.41 inches in diameter. This compact cylindrical construction provides Class CC protection in space-conscious industrial control panels and electrical equipment.

Ferrule terminals at both ends support installation in compatible Class CC fuse blocks, DIN-rail holders, panel-mount holders and in-line holders. Physical fit alone does not confirm electrical compatibility.

Compatible Fuse Blocks and Holders

Eaton lists several Bussmann holder families for FNQ-R Class CC fuses, including BCM603 modular fuse blocks, CHCC DIN-rail holders, OPM holders, HPS and HPF panel-mount holders, and HEY or HEZ in-line holders.

The exact holder catalog number depends on pole count, terminal style, mounting method and system requirements. Confirm the full fuse-holder specification before ordering or installation.

Standards and Compliance

• UL Listed to UL 248-4, Class CC
• CSA Certified, Class CC
• CE marked
• RoHS compliant

FNQ-R-2 and FNQ-2 Are Different Fuse Types

The FNQ-R-2 should not be confused with the FNQ-2. The FNQ-R-2 is a 600Vac Class CC current-limiting branch-circuit fuse with a rejection feature. The standard FNQ family consists of supplemental fuses with different voltage, interrupting and application characteristics.

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

Important Voltage Information

The FNQ-R-2 is rated for 600 Vac. Eaton lists a 300Vdc rating only for selected 15A and 20A FNQ-R models. Do not describe or apply the FNQ-R-2 as a 300Vdc fuse unless separate application-specific documentation confirms an approved rating.

Important Selection Information

Before purchasing, confirm the complete manufacturer catalog number FNQ-R-2, the required 2 amp rating, the 600Vac rating, available fault current and compatibility with the installed Class CC fuse holder.

Do not select a replacement fuse solely by amperage, physical dimensions or appearance. Voltage rating, fuse class, time-current characteristic, interrupting rating and equipment requirements must all be verified.

Ordering Information

Order using the complete manufacturer part number Eaton Bussmann FNQ-R-2. Confirm the required quantity, product condition and all electrical specifications before purchase or installation.