Bussmann FRS-R-35 Class RK5 35A Time-Delay Dual-Element Fuse Industrial Protection for Motors, Panels & Disconnects

Bussmann FRS-R-35 Class RK5 Time-Delay Dual-Element Fuse

The Bussmann FRS-R-35 is a dual-element, time-delay industrial fuse designed to provide reliable overload and short-circuit protection in motor control centers, machinery disconnects, and power panelboards. Its Class RK5 construction ensures controlled current limitation, enhancing equipment safety and reducing fault energy.

Why It Helps
The time-delay design allows equipment with high inrush currents—such as motors and transformers—to start without nuisance tripping. The dual-element structure provides precise overload protection while quickly responding to severe faults. This makes the fuse an efficient, dependable choice for industrial circuit protection.

Key Highlights

• Dual-element construction offers combined overload and short-circuit protection, enabling proper coordination in industrial systems.

• Time-delay performance provides a minimum of 10 seconds at 500% current, allowing heavy-duty motor loads to start smoothly.

• Current-limiting design reduces peak let-through energy, protecting downstream components during fault conditions.

• Durable cartridge body with ferrule ends ensures compatibility with standard Class RK5 fuse holders.

• Non-indicating style maintains a simple, rugged design appropriate for high-demand environments.

System Compatibility
The FRS-R-35 fits standard Class RK5 fuse holders and is compatible with 600V AC and 250V DC industrial circuits, including motor control systems, power distribution panels, and machinery disconnects.

Applications
Ideal for protecting motor circuits, industrial equipment, combination starters, and panelboards where time-delay, current-limiting performance is essential. Its robust construction ensures dependable protection in demanding environments.