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

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

Heavy-Duty Electrical Protection for High-Current Industrial Applications

The Bussmann Time Delay Fuse FRS-R Series 600A delivers superior electrical protection and circuit safety for high-current 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 for motor circuits and power distribution systems.

Professional Features & Benefits

Advanced Current Protection

• 600 Ampere Rating - Handles high-current loads with reliable overcurrent protection for industrial equipment
• Dual Element Design - Provides time delay for motor starting currents while offering fast response to short circuits
• Current Limiting Technology - Reduces let-through energy and limits fault current to protect downstream equipment
• 10 Second Time Delay at 500% - Allows motor starting and temporary overloads while clearing dangerous faults quickly

Safety & Standards Compliance

• Class RK5 Classification - Meets NEC requirements for selective coordination and electrical safety standards
• 200 kAIC Interrupt Rating at 600VAC - Safely clears high fault currents in industrial power distribution systems
• CE Marked Compliance - Meets international electrical safety standards for global installations

Technical Specifications

600 ampere rating, 600VAC/300VDC voltage rating, 200 kAIC interrupt rating at 600VAC, Class RK5 current limiting design, dual element construction, blade end x blade end connection, 10 second time delay at 500% rated current, non-indicating type, dimensions 1.06" H x 1.06" W x 5.5" L, weight 3 pounds, standard packaging.

Installation & Setup

1. Verify power is completely de-energized and follow lockout/tagout procedures for electrical safety
2. Confirm fuse holder is rated for 600 amperes and Class RK5 fuses with proper blade end connections
3. Check that system voltage does not exceed 600VAC or 300VDC rating
4. Insert fuse into holder ensuring proper blade end contact and secure mounting
5. Verify all connections are tight and properly torqued per manufacturer specifications
6. Test system operation and confirm proper selective coordination with upstream and downstream protective devices

Professional Applications

Ideal for:

• Motor Protection Circuits - Large industrial motors, compressors, and high-horsepower equipment requiring time delay protection
• Transformer Primary Protection - Power transformers and distribution transformers in industrial and commercial facilities
• Industrial Control Panels - Main disconnect protection for motor control centers and electrical distribution panels
• Power Distribution Systems - Feeder circuits and branch circuit protection in manufacturing facilities
• Commercial Buildings - HVAC systems, elevator motors, and large electrical loads requiring selective coordination
• Manufacturing Equipment - Production machinery, conveyor systems, and automated equipment protection
• Electrical Switchgear - Main breaker panels and electrical distribution equipment in industrial settings
• Data Center Power - UPS systems and critical power distribution requiring reliable overcurrent protection

Current Limiting Technology Advantage

Bussmann current limiting technology provides superior arc suppression and fault clearing capability, reducing let-through energy to protect sensitive downstream equipment. The dual element design ensures selective coordination with other protective devices while providing reliable time delay for motor starting currents and temporary overloads in industrial applications.

Why Choose Bussmann Quality?

Bussmann commitment to electrical safety includes rigorous testing for NEC compliance, reliable overcurrent protection performance, and professional-grade construction for industrial installations. Every fuse meets strict quality standards for current limiting capability, selective coordination, and long-term reliability in demanding electrical environments.