FRS-R-110 - 110Amp Fuse

FRS-R-110 - 110Amp Fuse

When your motor control centre or industrial panel demands dependable protection, the FRS‑R‑110 delivers performance you can trust. This 110 A fuse from the Eaton Bussmann Fusetron Class RK5 range is a dual‑element, time‑delay, current‑limiting design that helps equipment and systems keep running smoothly. With ratings of 600 V AC and 300 V DC, plus a high interrupting capacity, this fuse is well-suited for challenging commercial or industrial circuits. The intentional time delay at 500% of rated current means you can size closer to full‑load current and avoid nuisance trips caused by motor inrush or transformer energization. Whether you're working on a motor starter, control centre, or power distribution panel, the FRS‑R‑110 brings dependable circuit protection.

Key Features and Benefits

• Dual‑element, time‑delay construction: Means the fuse tolerates short bursts of inrush current (such as motor starts) without tripping, so your system stays operational under transient loads.
• Current‑limiting behaviour: Helps reduce the energy let‑through in fault conditions, so downstream components see less stress and damage is minimized.
• Voltage ratings: Rated for both 600 V AC and 300 V DC service, with an interrupting capacity of 200 kA at 600 V AC and 20 kA at 300 V DC, this fuse is fit for heavy duty industrial duties.
• Non‑indicating, blade‑end × blade‑end termination: Simplifies installation in compatible fuse holders, maintaining a compact footprint in starter panels and fusible disconnects.
• Class RK5 design: Means you can frequently use smaller components (switchgear, panels, starters) thanks to the time‑delay and current‑limiting features, reducing overall system cost.

Technical Specifications

• Amperage Rating: 110 A.
• Voltage Rating: 600 V AC / 300 V DC.
• Interrupting Rating: 200 kA at 600 V AC; 20 kA at 300 V DC.
• Response Time: Minimum 10 seconds at 500% of rated current.
• Fuse Class: RK5.
• Connection Type: Blade end × blade end.
• Dimensions: Length ~9.63 inches; Diameter ~1.61 inches.
• Weight: Approximately 1.05 lbs (typical).

Material Compliance and Certifications

• UL Compliance: Complies with UL 248‑12 for Class RK5 fuses.
• CSA Certification: Certified to CSA C22.2 No. 248.12.
• CE Marked: Meeting applicable European conformity requirements.

Where It Works Best

• The FRS‑R‑110 is ideal for industrial and commercial environments where motors, transformers, or other inductive loads cause temporary inrush current. Use it in combination starters, motor control centres, machinery disconnects, and power panelboards where you need both short‑circuit protection and selectivity for transient conditions. Because its time‑delay characteristic allows you to size closer to actual full‑load current, you’ll likely reduce nuisance trips and can opt for smaller starters, panels, and fuse blocks—saving space and lowering cost.