FRS-R-20 TIME DELAY FUSE

Product Description

The FRS-R-20 Time Delay Fuse is a Class RK5, dual-element, current-limiting fuse designed for protecting motor circuits, transformers, HVAC systems, and industrial control panels where short-term overloads and high inrush currents occur.

It belongs to the Eaton Bussmann FRS-R (Fusetron) series, which is widely used in heavy-duty electrical protection systems.

Key Features

• Time-delay (slow-blow) fuse for motor starting currents
• Class RK5 rejection-type design for secure installation
• Dual-element construction for overload + short-circuit protection
• High interrupting capacity for industrial fault conditions
• Current-limiting design reduces damage during short circuits
• Withstands temporary surge currents without nuisance blowing
• Cylindrical ferrule cartridge type for standard fuse holders
• Reliable protection for motors and transformers
• Suitable for industrial and commercial electrical systems
• UL/CSA certified safety standard design

Specifications

1. Product Type: Time Delay Fuse
2. Model: FRS-R-20
3. Brand: Eaton Bussmann
4. Fuse Class: RK5
5. Rated Current: 20A
6. Rated Voltage: 600V AC / 300V DC
7. Interrupting Rating: 200 kA @ 600V AC / 20 kA @ 300V DC
8. Response Type: Time Delay (Slow Acting)
9. Time Delay Characteristic: ~10 seconds at 500% overload
10. Body Size: Approx. 13/16″ × 5″ (20.6 mm × 127 mm)
11. Construction: Fibreglass/melamine tube with metal end caps
12. Element Type: Dual-element current limiting
13. Mounting Type: Cartridge fuse holder
14. Application: Motor control centers, transformers, HVAC systems, industrial panels