Bussmann Time Delay Fuse FRS-R Series 110A 600VAC/300VDC Class RK5 Dual Element Blade End Non-Indicating

Bussmann Time Delay Fuse FRS-R Series 110A 600VAC/300VDC Class RK5 Dual Element Blade End Non-Indicating

Professional-Grade Electrical Protection for Motor and Transformer Circuits

The Bussmann Time Delay Fuse FRS-R Series delivers superior electrical protection and circuit safety for motor protection and transformer 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 Current Limiting Protection

• 110 Ampere Rating - Provides precise overcurrent protection for high-capacity motor and transformer circuits
• Dual Element Design - Combines time delay characteristics with current limiting capability for superior circuit protection
• Class RK5 Performance - Delivers reliable current limiting action with 200 kAIC interrupt rating at 600V
• 10 Second Time Delay at 500% - Allows motor starting currents while protecting against sustained overloads

Safety and Standards Compliance

• CE Marked Certification - Meets European safety standards for electrical protection equipment
• Blade End Connection - Ensures secure electrical connection in fuse blocks and disconnect switches
• Non-Indicating Design - Professional grade construction for reliable operation in industrial environments

Technical Specifications

This professional time delay fuse operates at 110 amperes with dual voltage ratings of 600VAC and 300VDC. The Class RK5 current limiting design provides 200 kAIC interrupt rating at 600V and 20 kAIC at 300VDC. Physical dimensions measure 0.81 inches height by 0.81 inches width by 5 inches length, weighing 0.15 pounds. Blade end connections ensure secure installation with 10 second time delay response at 500% rated current.

Installation & Setup

1. Verify power is completely disconnected and use proper lockout/tagout procedures before installation
2. Inspect fuse holder or disconnect switch for proper amperage and voltage ratings matching fuse specifications
3. Insert blade end connections firmly into fuse clips ensuring complete contact engagement
4. Verify fuse is properly seated with no gaps or loose connections at blade terminals
5. Test installation with appropriate electrical testing equipment before energizing circuit
6. Document fuse installation including amperage rating and installation date for maintenance records

Professional Applications

Ideal for:

• Motor Protection Circuits - Large motor starters, HVAC equipment, and industrial machinery requiring time delay characteristics
• Transformer Protection - Primary and secondary protection for distribution and control transformers
• Industrial Control Panels - Main disconnect protection and feeder circuit protection in manufacturing facilities
• Commercial Building Systems - Electrical distribution panels, lighting contactors, and building automation systems
• Power Distribution Equipment - Switchgear, motor control centers, and electrical distribution boards
• Heavy Duty Applications - Industrial processes requiring 110 ampere protection with current limiting capability
• Electrical Service Equipment - Main electrical panels and sub-panels in commercial and industrial installations
• Motor Control Centers - Individual motor protection and feeder protection in MCC applications

Dual Element Current Limiting Advantage

The FRS-R Series dual element design provides superior electrical protection by combining time delay characteristics for motor starting with fast acting current limiting for fault protection. This technology allows normal motor inrush currents while providing immediate protection against dangerous fault currents, ensuring selective coordination and minimizing electrical system damage during fault conditions.

Why Choose Bussmann Quality?

Bussmann demonstrates unwavering commitment to electrical safety through CE marked certification, Class RK5 current limiting performance, and reliable overcurrent protection for professional installations. Every fuse undergoes rigorous testing to ensure consistent performance, proper interrupt ratings, and long-term reliability in demanding electrical environments where safety and system protection are paramount.