FRS-R FUSE

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Fusetron™ 600 V Class RK5, FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses


Catalog symbol: 
• FRS-R-(amp) (non-indicating)
• FRS-R-(amp)ID (indicating)

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

Specifications:
Ratings
• Volts
  • 600 Vac, 300 Vdc (1/10-30 A)
  • 600 Vac, 250 Vdc (35-60 A)
• Amps — 1/10-60 A  
• Interrupting rating  
  • 200 kA Vac RMS Sym
  • 20 kA 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
• CE

Features:
• Dual-element feature provides the best
  time-delay performance, allowing closer
  sizing and superior protection of motors and
  transformers
• Closer sizing allows for smaller fuses and
  less costly switches
• Class RK5 fuses with a 200 kA interrupting
  rating for use in a broad range of
  applications
• Provides motor overload, ground fault, and
  short-circuit protection
• Helps protect motors against burnout from
  overloads and single-phasing when sized
  properly
• 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
• Offers a 10-second time delay at 5 times the
  rated current
• The time-delay feature makes it possible
  to use fuse amp ratings that 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 current limitation to help protect
  downstream components from high fault
  currents.
• Gives motor running back-up protection to
  motors without extra costs.
 
Catalog numbers (amps)-non-indicating fuses
FRS-R-1/10 FRS-R-1-8/10 FRS-R-8*
FRS-R-1/8 FRS-R-2 FRS-R-9*
FRS-R-15/100 FRS-R-2-1/4 FRS-R-10*
FRS-R-2/10 FRS-R-2-1/2 FRS-R-12*
FRS-R-1/4 FRS-R-2-8/10 FRS-R-15*
FRS-R-3/10 FRS-R-3 FRS-S-17-1/2*
FRS-R-4/10 FRS-R-3-2/10 FRS-R-20*
FRS-R-1/2 FRS-R-3-1/2 FRS-R-25*
FRS-R-6/10 FRN-R-4 FRS-R-30*
FRS-R-8/10 FRS-R-4-1/2 FRS-R-35*
FRS-R-1 FRS-R-5 FRS-R-40*
FRS-R-1-1/8 FRS-R-5-6/10 FRS-R-45*
FRS-R-1-1/4 FRS-R-6* FRS-R-50*
FRS-R-1-4/10 FRS-R-6-1/4* FRS-R-60*
FRS-R-1-1/2 FRS-R-7*  
FRS-R-1-6/10 FRS-R-7-1/2*  
* Open fuse indication available by inserting the sufix
  “ID.” E.g., FRS-R-15ID.
 
Carton quantity:

Amp rating Carton qty.
1/10-60 10

Dimensions - in:

Recommended fuse blocks: 

Fuse amps 1-Pole 2-Pole 3-Pole
0- 30 RM60030-1 RM60030-2 RM60030-3
35 to 60 RM60060-1 RM60060-2 RM60060-3

Fuse reducers for class R fuses

Equipment fuse clips Desired fuse (case) size Catalog number (pairs) 600V
60A 30A No. 663-R
100A 30A No. 216-R
100A 60A No. 616-R
200A 60A No. 626-R
For additional information on class R fuse reducers, see data 
sheet No. 1118.

Time-current curves–average melt
10 to 60 amps

Time-current curves–average melt
1/10 to 8 amps

Current-limitation curves
 
 
 
Current-limiting effects

Prosp. S.C.C. Let-through current (apparent RMS Symmetrical vs. fuse rating)
- 30A 60A
5000 1000 1000
10,000 1000 2000
15,000 1000 2000
20,000 2000 2000
25,000 2000 2000
30,000 2000 3000
35,000 2000 3000
40,000 2000 3000
50,000 2000 3000
60,000 2000 3000
70,000 3000 4000
80,000 3000 4000
90,000 3000 4000
100,000 3000 4000
150,000 3000 5000
200,000 4000 6000 




Fusetron™ 600V Class RK5 
FRS-R — 600 Vac/300 Vdc, 65-600 A, dual element, time-delay fuses

Catalog symbol: 
• FRS-R-(amp)

Description:
Advanced protection, energy efficient Class RK5
dual element, current-limiting, time-delay fuses.
Time-delay – 10 seconds (minimum) at 500% of
rated current.

Specifications:
Ratings
• Volts — 600Vac, 300Vdc
• Amps — 65-600A
• Interrupting rating
  • 200 kA Vac RMS Sym
  • 20 kA Vdc

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

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
• 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 good degree 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 coordination 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
 

Catalog numbers
FRS-R-65 FRS-R-125 FRS-R-350
FRS-R-70 FRS-R-150 FRS-R-400
FRS-R-75 FRS-R-175 FRS-R-450
FRS-R-80 FRS-R-200 FRS-R-500
FRS-R-90 FRS-R-225 FRS-R-600
FRS-R-100 FRS-R-250  
FRS-R-110 FRS-R-300  

Amp rating Carton qty.
65-100 1
101-200 1
201-400 1
401-600 1

Amp rating A B
65-100 7.88 1.11
110-200 9.63 1.61
225-400 11.63 2.34
450-600 13.38 2.88

Dimensions - in:


Recommended fuse blocks:

Fuse amps 1-Pole 2-Pole 3-Pole
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
For additional information on the RM600 volt fuse blocks, see data sheet
No. 10489.

Fuse reducers for class R fuses

Equipment fuse clips Desired fuse (case) size Catalog numbers (pairs) 600 V
200A 100A No. 2621-R
400A 100A No. 2641-R
  200A No. 642-R
  100A No. 2661-R
600A 200A No. 2662-R
  400A No. 2664-R†
† Single reducer only (pair not required). 

For additional information on Class R fuse reducers, see data
sheet No. 1118.

Current-Limitation curves
 
Time-current curves - average melt
 
Current-limiting effects

Prosp. S.C.C Let-through current (apparent RMS symmetrical vs. fuse rating)
  100A 200A 400A 600A
5000 3000 4000 5000 5000
10,000 4000 5000 9000 10,000
15,000 4000 6000 10,000 14,000
20,000 5000 7000 11,000 15,000
25,000 5000 7000 12,000 17,000
30,000 5000 8000 13,000 18,000
35,000 5000 8000 13,000 18,000
40,000 6000 9000 14,000 19,000
50,000 6000 9000 14,000 20,000
60,000 6000 10,000 15,000 22,000
70,000 7000 11,000 17,000 23,000
80,000 7000 12,000 17,000 23,000
90,000 7000 12,000 17,000 24,000
100,000 8000 13,000 18,000 25,000
150,000 9000 14,000 21,000 27,000
200,000 9000 16,000 23,000 32,000