Description
The Bussmann FRS-R-12 is a Fusetron series dual-element, time-delay fuse manufactured by Eaton under the Bussmann brand. It is designed for compatible electrical distribution and industrial circuits where controlled time-delay operation and current-limiting protection are required.
With a rated current of 12A and a voltage rating of 600V AC / 300V DC, the FRS-R-12 is part of the Class RK5 fuse range. Its time-delay characteristics help accommodate suitable temporary inrush currents while providing protection against sustained overloads and short circuits when correctly selected.
Key Specifications
| Specification | Details |
|---|---|
| Brand | Bussmann (Eaton) |
| Series | Fusetron FRS-R |
| Model | FRS-R-12 |
| Rated Current | 12A |
| Rated Voltage | 600V AC / 300V DC |
| Fuse Class | Class RK5 |
| Fuse Type | Dual-Element Time-Delay Fuse |
| Protection Design | Current-Limiting |
| Interrupting Rating | 200 kA at 600V AC; 20 kA at 300V DC |
| Response Time | 10 Seconds at 500% of Rated Current |
| Indication | Non-Indicating |
| Connection | Ferrule Ends |
| Typical Applications | Suitable for Motor, Transformer and Industrial Distribution Circuits |
Specifications are based on Eaton’s official FRS-R-12 product information and FRS-R series technical data sheet.
Features and Benefits
Dual-Element Time-Delay Protection
The dual-element design provides time-delay performance for circuits that experience suitable starting or inrush currents, helping reduce unwanted fuse operation during normal startup.
Current-Limiting Performance
The fuse helps limit fault current under specified conditions, supporting protection of downstream electrical components.
Class RK5 Design
The Class RK5 construction is intended for compatible branch-circuit protection applications and must be installed in an appropriately rated fuse holder.
Motor and Transformer Applications
When properly sized, the FRS-R series can be used to help protect compatible motor and transformer circuits against overload and short-circuit conditions.
Typical Applications
Depending on the circuit design and protection requirements, the FRS-R-12 may be considered for:
– Industrial electrical distribution panels
– Compatible motor circuits
– Transformer protection
– Control panels and electrical equipment
– Circuits with suitable temporary inrush currents
– Compatible Class R fuse holders
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