Overview
The Bussmann FRS-R-60 600V/60A fuse is an industry-standard Class RK5 dual-element, time-delay, current-limiting cartridge fuse manufactured by Eaton. Designed for motor circuits, power distribution panels, combination starters, and machinery disconnects, this fuse provides both overload and short-circuit protection with exceptional coordination characteristics. UL listed and certified to CSA standards.
Key Features
- Dual-element construction — enables 10-second time delay at 5× rated current, allowing superior motor startup tolerance without nuisance trips
- 200kA interrupting rating at 600VAC — high rupturing capacity handles severe fault conditions safely
- Current-limiting design — protects downstream equipment from destructive peak fault currents
- Non-indicating body — ferrule terminal with holder-mount configuration for secure clip connections
- UL 248-12 and CSA C22.2 No. 248.12 certified — meets North American electrical safety standards
Technical Specifications
- Voltage Rating: 600 VAC / 300 VDC
- Current Rating: 60 Amperes
- Class: Class RK5
- Fuse Type: Dual element, time delay
- Interrupting Rating: 200 kA at 600 VAC, 20 kA at 250 VDC
- Time-Delay Response: 10 second response at 5× rated current
- Body Dimensions: 1.06″ diameter × 5.5″ length
- Terminal Style: Ferrule — holder mount
- Material: Fiberglass body, dual element
- Standards: UL 248-12, CSA C22.2 No. 248.12, CE certified
Typical Applications
The FRS-R-60 is ideal for:
- Motor branch circuits and combination starters
- Power distribution panel boards and switchboards
- Machinery disconnects and control equipment
- Equipment requiring selective coordination and nuisance-trip prevention
- Transformer and motor overload protection on 600V systems
Compatibility & Replacements
Compatible With
- Class R fuse holders and clips (standard ferrule-terminal mounting)
- RM60060-1, RM60060-2, and RM60060-3 recommended fuse blocks (1-, 2-, and 3-pole configurations)
- Standard 600V industrial power distribution systems
- Motor control centers and industrial control panels
- Equipment designed for RK5 Class fuses
Replaces / Drop-In Replacement For
- Bussmann Fusetron FRS-R-60 (current product designation)
- Cooper Bussmann FRS-R-60 (legacy product designation)
- Other Class RK5 60A/600V dual-element fuses with 10-second time delay
- For direct replacement eligibility, verify fuse block compatibility before ordering
Works With
- Class R fuse reducers (sold separately as NO.663-R for 30A reduction, NO.616-R for 60A reduction)
- Eaton standard fuse blocks and clips for Class RK5 cartridge fuses
- Industrial electrical design software and load calculation tools supporting UL 248-12 standards
- NEMA and IEC-compliant motor control and protection circuits
