Bussmann Time Delay Fuse FRS-R Series 30A 600VAC/300VDC Class RK5 Dual Element Ferrule End

Bussmann Time Delay Fuse FRS-R Series 30A 600VAC/300VDC Class RK5 Dual Element Ferrule End

Professional-Grade Dual Element Circuit Protection

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

• Time Delay Response - 10 second delay at 500% rated current prevents nuisance tripping during motor starting
• Dual Element Design - Separate overload and short circuit elements provide comprehensive protection
• 30 Ampere Rating - Handles continuous current up to 30A with reliable overcurrent protection
• Class RK5 Performance - Current limiting design reduces fault energy and protects downstream equipment

Safety & Standards Compliance

• High Interrupt Rating - 200 kAIC at 600V and 20 kAIC at 300VDC for superior fault clearing capability
• CE Marked Compliance - Meets international electrical safety standards for global installations
• Non-Indicating Design - Professional grade construction for reliable operation without visual indication

Technical Specifications

30 ampere rating, 600VAC/300VDC voltage rating, 200 kAIC interrupt rating at 600V, 20 kAIC at 300VDC, Class RK5 current limiting, ferrule end connections, dual element construction, 10 second time delay at 500% rated current, dimensions 2.34" H x 2.34" W x 11.63" L, weight 2.25 lbs, non-indicating design for professional installations.

Installation & Setup

1. Verify power is completely disconnected and follow lockout/tagout procedures for electrical safety
2. Confirm fuse holder is rated for 30A and Class RK5 fuses with proper ferrule end connections
3. Insert fuse ensuring proper ferrule end contact with fuse holder terminals
4. Verify secure mechanical connection and proper fuse seating in holder
5. Test installation with appropriate electrical testing equipment before energizing
6. Document installation per NEC requirements and facility maintenance records

Professional Applications

Ideal for:

• Motor Protection Circuits - HVAC motors, pump motors, conveyor systems, and industrial machinery protection
• Transformer Circuits - Primary protection for control transformers and power distribution transformers
• Control Panel Protection - Industrial control panels, motor control centers, and automation systems
• Lighting Circuit Protection - Commercial lighting panels and high-intensity discharge lighting circuits
• Industrial Machinery - Manufacturing equipment, processing machinery, and production line protection
• Commercial Buildings - Office buildings, retail facilities, and institutional electrical systems
• Power Distribution - Electrical distribution panels, switchgear, and load centers
• Electrical Panel Protection - Main panels, sub-panels, and branch circuit protection

Time Delay Technology Advantage

Bussmann FRS-R Series dual element technology provides superior motor starting protection by allowing temporary overloads while quickly clearing dangerous short circuits. The 10-second time delay at 500% rating prevents nuisance tripping during normal motor starting while the current limiting design reduces arc energy and protects electrical equipment from fault damage.

Why Choose Bussmann Quality?

Bussmann commitment to electrical safety includes rigorous testing for interrupt capacity, current limiting performance, and time delay accuracy. Each FRS-R Series fuse meets stringent electrical standards for reliable overcurrent protection, ensuring professional installations maintain electrical system integrity and worker safety in demanding industrial and commercial applications.