Bussmann Time Delay Fuse FNQ-R Series 15A 600VAC/300VDC Class CC Current Limiting Ferrule End

Bussmann Time Delay Fuse FNQ-R Series 15A 600VAC/300VDC Class CC Current Limiting Ferrule End

Professional-Grade Current Limiting Circuit Protection

The Bussmann FNQ-R Series Time Delay Fuse delivers superior electrical protection and circuit safety for control circuits and small transformer applications. This Class CC current-limiting fuse features rejection-style design with 12-second time delay at 200% rating, designed for electrical contractors, industrial facilities, and commercial installations, providing the reliable overcurrent protection and industry-leading safety that electrical professionals demand.

Professional Features & Benefits

Current Limiting Protection

• 200 kAIC Interrupt Rating at 600VAC - Superior fault current clearing capability for high-energy electrical systems
• Current Limiting Technology - Reduces peak let-through current and energy for enhanced circuit protection
• Time Delay Characteristics - 12-second delay at 200% rating prevents nuisance tripping on motor starting currents
• Dual Voltage Rating - 600VAC/300VDC operation provides versatility for AC and DC applications

Safety & Standards Compliance

• Class CC Rejection Design - Prevents installation of incorrect fuse types for enhanced electrical safety
• CE Marked Compliance - Meets European safety standards for international installations
• Melamine Tube Construction - High-temperature resistant housing ensures reliable arc suppression

Technical Specifications

15 ampere rating, 600VAC/300VDC voltage rating, 200 kAIC interrupt rating at 600VAC, Class CC fuse classification, ferrule end connections, 12-second time delay at 200% rating, 1.5" x 0.41" x 0.41" dimensions, 0.15 lb weight, melamine tube construction, non-indicating design, rejection-style safety feature.

Installation & Setup

1. Verify power is OFF and use proper lockout/tagout procedures before fuse installation
2. Confirm fuse holder accepts Class CC rejection-style fuses to prevent incorrect installation
3. Insert ferrule ends fully into fuse clips ensuring secure mechanical and electrical connection
4. Verify proper fuse rating matches circuit protection requirements and NEC guidelines
5. Test circuit operation and confirm proper overcurrent protection functionality
6. Document fuse installation with amperage rating and installation date for maintenance records

Professional Applications

Ideal for:

• Control Circuit Protection - Motor control panels, PLC circuits, and industrial automation systems
• Small Transformer Circuits - Control transformers, lighting transformers, and power supply protection
• Industrial Control Systems - Manufacturing equipment, process control, and instrumentation circuits
• Branch Circuit Protection - Lighting circuits, receptacle circuits, and small motor feeders
• Commercial Buildings - HVAC controls, lighting controls, and building automation systems
• Electrical Panels - Distribution panels, control panels, and motor control centers
• Power Distribution - Secondary distribution, feeder protection, and load center applications
• Motor Protection - Small motor circuits requiring time delay for starting current accommodation

Current Limiting Technology Advantage

Bussmann current-limiting technology provides superior arc fault suppression and reduces peak let-through current during fault conditions. The 200 kAIC interrupt rating ensures reliable fault clearing in high-energy electrical systems, while the time delay characteristic prevents nuisance tripping during normal motor starting and transformer inrush conditions, enabling selective coordination with downstream protective devices.

Why Choose Bussmann Quality?

Bussmann demonstrates unwavering commitment to electrical safety through CE marked compliance, Class CC rejection-style design preventing incorrect installations, and current-limiting technology that enhances overall electrical system protection. The melamine tube construction and ferrule end connections ensure reliable performance in professional electrical installations, providing the overcurrent protection and electrical safety that contractors and facility managers trust for critical applications.