- Provides motor overload, ground fault and short circuit protection
- When used in circuits subject to surge currents such as those caused by motors, transformers and other inductive components, these fuses can be sized close to full-load amps to give maximum over current protection
- The time delay feature makes it possible to use fuse amperage ratings which are much smaller than those of non-time delay fuses
- Considerable cost savings occur by permitting the use of smaller size switches, panels and fuses themselves
- Provides a good deg of short circuit protection (greater current limitation) to help protect downstream components from high fault currents
- Gives motor running back-up protection to motors without extra cost
- Helps protect motors against burnout from overloads and single phasing when sized properly
- Simplifies and improves blackout prevention (selective co-ordination ratios)
- Dual element fuses can be applied in circuits subject to temporary motor overloads and surge currents to provide both high performance short circuit and overload protection
- https://www.youtube.com/watch?v=YMvqUyoETXk
Specifications
Brand: Bussmann
Amperage Rating: 300, 300 A
Body Type: Cartridge
Class: RK5
Indicating/Non-Indicating: Non-Indicating
Interrupt Rating: 200 kA, 200/20
Rejection/Non-Rejection: Rejection
Response Time: 10, 10 s at 500%
Series: FRS-R
Terminal Type: Blade, Knife Blade
Type: Current Limiting Renewable
Voltage Rating: 600 VAC/300 VDC
Country of origin: MX
Material: Fiberglass
Mounting type: Holder
Manufacturer Name: Eaton
UNSPSC: 39121606
UPC: 00051712508513
Bussmann FRS-R-300 Time Delay Fuse
Bussmann Fusetron Time Delay Fuse, Current Limiting Renewable, Series: FRS-R, Indicating/Non-Indicating: Non-Indicating, Rejection/Non-Rejection: Rejection, 300 A, 600 VAC/300 VDC, 200 kA Interrupt, Class: RK5, 10 s at 500% Response, Blade Terminal, Holder Mount, Cartridge Body Type, Dual Element, Fiberglass, 2.34 in Dia x 11.63 in L Body Size
Additional Description: BUSS-FRS-R-300 FUSETRON DUAL ELEMENT FUSE CLASS RK5
Catalog Description: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 300 A, non-indicating fuse, interrupting rating of 200 kA at 600 Vac and 20 kA at 300 Vdc
Item FeaturesCombination Starters, Machinery Disconnects, Motor Control Centers and Power Panelboard Applications, Safety and Security Systems
Item Features
Item FeaturesCE Certified|CSA File No. 53787 C22.2/248.12 1422-02|UL 248-12/File No. E4273|UL Guide JDDZ