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FRS-R Fusetron Class RK5 600Vac/300Vdc Dual Element Time-Delay Fuses

FRS-R Fusetron Class RK5 600Vac/300Vdc Dual Element Time-Delay Fuses

Description: Advanced protection, energy efficient Class RK5 dual element, current-limiting, time-delay fuses with optional open fuse indication on select ratings.
Time-delay – 10 second (minimum) at 500% of rated current.

Catalog Symbol:
FRS-R-(amp) (non-inducating)
FRS-R-(amp)ID (indicating)

Ratings:
Volts: 600Vac,300Vdc (1⁄10-30A & 65-600A),250Vdc (35-60A)
Amps: 1/10-600A
IR: 200kA Vac RMS Sym. 20kA Vdc

Agency Information:
CE, UL Listed, Std. 248-12, Class RK5, Guide JDDZ, File E4273
CSA Certified, C22.2 No. 248.12, Class 1422-02, File 53787

Catalog Numbers (amps)

FRS-R-1⁄10 FRS-R-2 FRS-R-10 FRS-R-100
FRS-R-1⁄8 FRS-R-2-1⁄4 FRS-R-12 FRS-R-110
FRS-R-15⁄100 FRS-R-2-1⁄2 FRS-R-15 FRS-R-125
FRS-R-2⁄10 FRS-R-2-8⁄10 FRS-R-17-1⁄2 FRS-R-150
FRS-R-1⁄4 FRS-R-3 FRS-R-20 FRS-R-175
FRS-R-3⁄10 FRS-R-3-2⁄10 FRS-R-25 FRS-R-200
FRS-R-4⁄10 FRS-R-3-1⁄2 FRS-R-30 FRS-R-225
FRS-R-1⁄2 FRS-R-4 FRS-R-35 FRS-R-250
FRS-R-6⁄10 FRS-R-4-1⁄2 FRS-R-40 FRS-R-300
FRS-R-8⁄10 FRS-R-5 FRS-R-45 FRS-R-350
FRS-R-1 FRS-R-5-6⁄10 FRS-R-50 FRS-R-400
FRS-R-1-1⁄8 FRS-R-6 FRS-R-60 FRS-R-450
FRS-R-1-1⁄4 FRS-R-6-1⁄4 FRS-R-65 FRS-R-500
FRS-R-1-4⁄10 FRS-R-7 FRS-R-70 FRS-R-600
FRS-R-1-1⁄2 FRS-R-7-1⁄2 FRS-R-75  
FRS-R-1-6⁄10 FRS-R-8 FRS-R-80  
FRS-R-1 8⁄10 FRS-R-9 FRS-R-90  

Catalog Numbers (amps) (Open fuse indication available)

FRS-R-6ID FRS-R-9ID FRS-R-20ID FRS-R-45ID
FRS-R-6-1⁄4ID FRS-R-10ID FRS-R-25ID FRS-R-50ID
FRS-R-7ID FRS-R-12ID FRS-R-30ID FRS-R-60ID
FRS-R-7-1⁄2ID FRS-R-15ID FRS-R-35ID  
FRS-R-8ID FRS-R-17-1⁄2ID FRS-R-40ID  

Carton Quantity

Amp Rating Carton Qty.
1/10-60 10
65-100 1

 

Dimensions - in

Features:
• 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 overcurrent protection.
• Permits the use of smaller and less costly switches. The time-delay feature makes it possible to use fuse amp ratings which are much smaller than those of non-time delay fuses. Considerable cost saving occurs by permitting the use of smaller size switches, panels and fuses themselves.
• Provides a higher degree of short-circuit protection (greater current-limitation) in circuits in which surge currents or temporary overloads occur.
• Helps protect motors against burnout from overloads
• Gives motor running back-up protection to motors without extra costs
• Helps protect motors against burnout from single phasing on three phase systems
• Simplifies and improves blackout prevention (selective coordination)
• 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
• The overload element provides protection against low level overcurrent of overloads and will hold an overload which is five times greater than the amp rating of the fuse for a minimum of ten seconds

 
Recommended Fuse Blocks
Fuse Amps 1-Pole 2-Pole 3-Pole
0-30 R60030-1 R60030-2 R60030-3
35-60 R60060-1 R60060-2 R60060-3
70-100 RM60100-1CR RM60100-2CR RM60100-3CR
110-200 RM60200-1CR RM60200-2CR RM60200-3CR
225-400 RM60400-1CR RM60400-2CR RM60400-3CR
450-600 RM60600-1CR RM60600-2CR RM60100-3CR
Fuse Reducers For Class R Fuses
Equipment Fuse Clips Desired Fuse (Case) Size Catalog Numbers (Pairs) 600V
60A 30A NO.663-R
100A 30A NO.216-R
60A NO.616-R
200A 60A NO.626-R
200A 100A NO.2621-R
400A 100A NO.2641-R
200A NO.642-R
600A 100A NO.2661-R
200A NO.2662-R
400A NO.2664-R†
† Single reducer only (pair not required)
Time-Current Curves - Average Melt

Current-Limitation Curves
Current-Limiting Effects
Prosp.  S.C.C.  Let-Through Current (Apparent RMS Symmetrical  Vs. Fuse Rating)
  30A 60A 100A 200A 400A 600A
5000 1000 1000 3000 4000 5000 5000
10,000 1000 2000 4000 5000 9000 10,000
15,000 1000 2000 4000 6000 10,000 14,000
20,000 2000 2000 5000 7000 11,000 15,000
25,000 2000 2000 5000 7000 12,000 17,000
30,000 2000 3000 5000 8000 13,000 18,000
35,000 2000 3000 5000 8000 13,000 18,000
40,000 2000 3000 6000 9000 14,000 19,000
50,000 2000 3000 6000 9000 14,000 20,000
60,000 2000 3000 6000 10,000 15,000 22,000
70,000 3000 4000 7000 11,000 17,000 23,000
80,000 3000 4000 7000 12,000 17,000 23,000
90,000 3000 4000 7000 12,000 17,000 24,000
100,000 3000 4000 8000 13,000 18,000 25,000
150,000 3000 5000 9000 14,000 21,000 27,000
200,000 4000 6000 9000 16,000 23,000 32,000