Bussmann Time Delay Fuse FRN-R Series 60A 250VAC/125VDC Class RK5 Dual Element Ferrule End

Bussmann Time Delay Fuse FRN-R Series 60A 250VAC/125VDC Class RK5 Dual Element Ferrule End

Professional-Grade Motor and Circuit Protection with Current Limiting Technology

The Bussmann Time Delay Fuse FRN-R Series 60A delivers superior electrical protection and circuit safety for motor circuits and industrial applications. 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

Advanced Motor Protection

• Dual Element Design - Provides time delay for motor starting currents while offering fast response to short circuits
• 60A Current Rating - Handles substantial motor loads and industrial equipment with reliable overcurrent protection
• 10 Second Time Delay at 500% - Allows motor starting transients while protecting against sustained overloads
• Current Limiting Technology - Reduces let-through energy and limits fault current for enhanced system protection

Safety & Standards Compliance

• Class RK5 Performance - Meets NEC requirements for motor branch circuit protection with selective coordination capability
• 200 kAIC at 250V Interrupt Rating - Safely clears high fault currents in industrial electrical systems
• CE Marked Compliance - Meets international electrical safety standards for global installations

Technical Specifications

60 ampere current rating, 250VAC/125VDC voltage rating, 200 kAIC interrupt rating at 250V and 20 kAIC at 125VDC, Class RK5 current limiting fuse, dual element time delay design, ferrule end connections, 10 second response time at 500% rated current, 2.59 x 2.59 x 2.59 inch dimensions, 3.3 pound weight, non-indicating design for standard electrical panel installations.

Installation & Setup

1. Verify electrical system is de-energized and follow NFPA 70E safety procedures before installation
2. Confirm fuse holder compatibility with Class RK5 ferrule end fuse dimensions and ratings
3. Install fuse with proper orientation ensuring secure ferrule end connections in fuse clips
4. Verify amperage rating matches motor full load current and NEC sizing requirements
5. Test installation with proper electrical testing equipment before energizing circuit
6. Document installation per NEC requirements and facility electrical maintenance procedures

Professional Applications

Ideal for:

• Motor Protection Circuits - HVAC motors, pump motors, conveyor systems, and industrial machinery requiring time delay protection
• Industrial Control Panels - Motor control centers, variable frequency drive protection, and automated equipment circuits
• Commercial HVAC Systems - Air handling units, chiller circuits, and building automation motor protection
• Manufacturing Equipment - Production machinery, material handling systems, and process control motor circuits
• Power Distribution Systems - Feeder circuits, branch circuit protection, and electrical panel overcurrent protection
• Lighting Circuits - High-intensity discharge lighting and large lighting load protection
• Transformer Protection - Primary side protection for control transformers and distribution transformers
• Electrical Panels - Main panels, sub-panels, and motor control center overcurrent protection

Dual Element Current Limiting Advantage

Bussmann dual element technology combines time delay overload protection with fast-acting short circuit protection, providing superior motor starting capability while limiting dangerous fault currents. The current limiting design reduces arc flash hazards and protects downstream equipment from damaging let-through energy during fault conditions.

Why Choose Bussmann Quality?

Bussmann commitment to electrical safety includes rigorous testing for NEC compliance, reliable overcurrent protection performance, and professional-grade construction for critical electrical installations. Every FRN-R series fuse delivers consistent time-current characteristics and dependable circuit protection that electrical contractors and facility managers trust for motor protection and industrial applications.