Bussmann Time Delay Fuse FRS-R Series 15A 600VAC/300VDC Class RK5 Dual Element Ferrule End

Bussmann Time Delay Fuse FRS-R Series 15A 600VAC/300VDC Class RK5 Dual Element Ferrule End

Professional-Grade Dual Element Time Delay Protection

The Bussmann Time Delay Fuse FRS-R Series delivers superior electrical protection and circuit safety for motor circuits and inductive loads. This Class RK5 time delay fuse features dual element current limiting technology 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

Dual Element Time Delay Protection

• 15 Ampere Rating - Precise overcurrent protection for motor and lighting circuits with reliable fault clearing capability
• 10 Second Time Delay at 500% - Allows motor starting currents while providing fast fault protection for electrical safety
• Dual Element Design - Combines overload and short circuit protection in single fuse for comprehensive circuit safety
• Current Limiting Technology - Reduces let-through energy and arc flash hazards for enhanced electrical worker safety

Safety & Standards Compliance

• Class RK5 Performance - Meets NEC requirements for motor protection and selective coordination in electrical systems
• 200 kAIC Interrupt Rating - Safely clears high fault currents up to 200,000 amperes at 600VAC for industrial applications
• CE Marked Compliance - Meets international electrical safety standards for global installation requirements

Technical Specifications

15 ampere rating, 600VAC/300VDC voltage rating, 200 kAIC interrupt rating at 600VAC, 5.0 x 0.81 x 0.81 inches dimensions, Class RK5 fuse classification, ferrule end connections, 10 second response time at 500% rated current, dual element construction, 0.15 lb weight, non-indicating design for standard electrical panel installations.

Installation & Setup

1. Turn off power at main breaker and verify zero energy state using proper lockout/tagout procedures for electrical safety
2. Remove existing fuse using appropriate fuse pullers and inspect fuse holder for damage or corrosion
3. Insert new Bussmann FRS-R fuse ensuring proper ferrule end contact with fuse clips for reliable connection
4. Verify fuse amperage rating matches circuit protection requirements per NEC Article 430 for motor circuits
5. Restore power and test circuit operation while monitoring for proper motor starting and protection coordination
6. Document fuse installation in electrical panel schedule for maintenance and inspection records

Professional Applications

Ideal for:

• Motor Protection Circuits - HVAC motors, pump motors, conveyor systems, and industrial machinery requiring time delay protection
• Lighting Control Circuits - Commercial lighting panels, ballast protection, and LED driver circuits in office buildings
• Control Panel Applications - PLC power supplies, control transformers, and automation equipment in manufacturing facilities
• HVAC System Protection - Air handling units, chiller controls, and building automation systems requiring reliable overcurrent protection
• Industrial Machinery - Production equipment, material handling systems, and process control applications
• Commercial Buildings - Electrical distribution panels, tenant spaces, and facility electrical systems
• Power Distribution - Feeder circuits, branch circuit protection, and electrical panel main disconnects
• Electrical Panel Boards - Load centers, distribution panels, and motor control centers requiring Class RK5 protection

Current Limiting Technology Advantage

Bussmann current limiting technology reduces peak let-through current and energy during fault conditions, minimizing arc flash hazards and protecting downstream electrical equipment. The dual element design provides superior selective coordination with upstream protective devices while allowing normal motor starting currents, ensuring reliable electrical system operation and enhanced worker safety.

Why Choose Bussmann Quality?

Bussmann commitment to electrical safety includes rigorous testing for NEC compliance, reliable overcurrent protection performance, and consistent quality manufacturing. Each FRS-R series fuse undergoes comprehensive quality control testing to ensure dependable circuit protection, proper time delay characteristics, and safe fault clearing capability for professional electrical installations requiring the highest standards of electrical safety and system reliability.