BUSSMANN FRS-R-250 FRSR250 FRSR 250V FUSETRON DUAL ELEMENT TIME-DELAY FUSE 10:48

• BUSSMANN
• FRS-R-250 FRSR250
• 250A, 600V
• FUSETRON DUAL ELEMENT
• TIME-DELAY FUSE
• CLASS RKS FUSE
• HRC-I
• 200000 amps rms
• BUSSMANN MFG, DIV
• USA

The Bussmann FRS-R-250 is a 250 amp, 250-volt dual-element time-delay fuse designed for robust circuit protection. Part of the renowned FUSETRON series, it safely handles temporary overloads (like motor startups) while providing a quick response to dangerous short-circuits. Its 200,000-amp interrupting rating ensures safety in high-fault environments.

Detailed Product Description

Reliable Overload & Short-Circuit Protection for Demanding Applications

The Bussmann FRS-R-250 FUSETRON fuse is a premium industrial-grade fuse engineered for superior circuit protection where both overload and high fault currents are a concern. This 250-amp, 250-volt fuse is the ideal solution for safeguarding motors, feeders, and branch circuits in industrial, commercial, and utility settings.

Key Features & Benefits:

• Dual-Element, Time-Delay Design: The fuse incorporates two precise-acting elements. One provides a intentional time-delay, allowing it to withstand harmless temporary inrush currents (like those from motor startups or transformer energization) without nuisance blowing. The second element acts instantaneously to clear dangerous short-circuit faults.

• High Interrupting Rating (200,000 AIC): With an Interrupting Rating of 200,000 amps RMS symmetrical, this fuse can safely interrupt extremely high fault currents, preventing damage to equipment and ensuring personnel safety in the event of a severe short-circuit.

• Class RK5 Fuse: The FRS-R-250 meets the Class RK5 standard, indicating a high degree of current limitation and a 250-volt AC rating. It is a direct physical and electrical replacement for many older RK5 fuses.

• Vibration & Fatigue Resistant: Unlike thermal circuit breakers that can be sensitive to vibration, the fuse’s sealed construction ensures reliable operation in harsh environments.

• Space Saving: Provides a high level of protection in a compact form factor, making it an excellent choice for panelboards and disconnect switches.

Common Applications:

• Motor Circuit Protection: Ideal for protecting motors and their associated wiring from overloads and short circuits.

• Feeder and Branch Circuits: Used as a main or branch fuse in panelboards and switchboards.

• Industrial Control Panels: Protects transformers, power supplies, and heavy machinery.

• Heavy-Duty Power Supplies & Welding Equipment.

• Service Entrance Equipment.

Technical Specifications:

• Manufacturer: Eaton (Bussmann Series)

• Part Number: FRS-R-250 (also commonly searched as FRSR250, FRSR 250)

• Ampere Rating: 250 Amps

• Voltage Rating: 250V AC

• Interrupting Rating: 200,000 Amps (200kA)

• Fuse Class: RK5 (Dual-Element, Time-Delay)

• Speed: Time-Delay

• Terminal Type: Ferrule (Knife Blade)

Why Choose Bussmann FUSETRON?

Bussmann is a globally trusted leader in circuit protection. The FUSETRON line is synonymous with durability, safety, and performance. By choosing the FRS-R-250, you are investing in a component that ensures operational continuity and protects your valuable electrical assets.