Bussmann Fusetron Dual-Element Class Rk5 Fuses - 100AMP 250VAC

Bussmann Fusetron dual-element Class RK5 fuses deliver reliable overcurrent protection for solar PV systems, battery energy storage, and general electrical applications. Available in 250VAC/125VDC and 600VAC/300VDC ratings, these current-limiting time-delay fuses provide separate overload and short-circuit protection elements.

Key Features

• Dual-Element Design: Separate overload and short-circuit elements for precise protection
• Time Delay: Handles motor inrush and transient currents without nuisance blowing
• Current Limiting: Protects downstream components from high fault currents
• Rejection Style: Eliminates replacement with incorrect fuse types
• 2:1 Selective Coordination: Prevents unnecessary upstream fuse openings
• Insulated End Caps: Enhanced safety on 225A-600A sizes

Specifications

• Class: RK5 current limiting, time delay
• Voltage Ratings: 250VAC/125VDC or 600VAC/300VDC
• Terminal Type: Ferrule
• Construction: Fiberglass tube, cylindrical clip-mountable
• Certifications: UL Listed, CE Marked, CSA Certified

Applications

• Solar PV Installations: String and combiner box protection
• Battery Energy Storage: Overcurrent protection for battery circuits
• Motor Control Centers: Time-delay handles inrush without false trips
• Power Distribution: Panel boards, disconnect switches, and combination starters