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FRN-R 250V Class RK5 Fusetron® Dual-element Time-delay Fuses

FRN-R 250V Class RK5 Fusetron® 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(1⁄10-60A).
Time-delay – 10 seconds (minimum) at 500% of rated current (8 seconds for 1⁄10-30A sizes).

Catalog Symbol:
FRN-R-(amp) (non-indicating)
FRN-R-(amp)ID (indicating)

Ratings:
Volts: 250Vac, 125Vdc (1/10-200A),  250Vdc (225-600A)
Amps: 1⁄10-600 Amps
IR: 200kA Vac RMS Sym. 20kA Vdc

Agency Information:
CE, UL Listed, Std. 248-12, Class RK-5, Guide JDDZ, File E4273
CSA Certified, C22.2 No. 248.12, Class 1422-02, File 53787

Catalog Numbers (amps)

FRN-R-1/10 FRN-R-1 8/10 FRN-R-8 FRN-R-10ID FRN-R-90
FRN-R-1/8 FRN-R-2 FRN-R-9 FRN-R-12ID FRN-R-100
FRN-R-15/100 FRN-R-2 1/4 FRN-R-10 FRN-R-15ID FRN-R-110
FRN-R-2/10 FRN-R-2 1/2 FRN-R-12 FRN-R-17 1/2ID FRN-R-125
FRN-R-1/4 FRN-R-2 8/10 FRN-R-15 FRN-R-20ID FRN-R-150
FRN-R-3/10 FRN-R-3 FRN-R-17 1/2 FRN-R-25ID FRN-R-175
FRN-R-4/10 FRN-R-3 2/10 FRN-R-20 FRN-R-30ID FRN-R-200
FRN-R-1/2 FRN-R-3 1/2 FRN-R-25 FRN-R-35ID FRN-R-225
FRN-R-6/10 FRN-R-4 FRN-R-30 FRN-R-40ID FRN-R-250
FRN-R-8/10 FRN-R-4 1/2 FRN-R-35 FRN-R-45ID FRN-R-300
FRN-R-1 FRN-R-5 FRN-R-40 FRN-R-50ID FRN-R-350
FRN-R-1 1/8 FRN-R-5 6/10 FRN-R-45 FRN-R-60ID FRN-R-400
FRN-R-1 1/4 FRN-R-6 FRN-R-50 FRN-R-70 FRN-R-450
FRN-R-1 4/10 FRN-R-6 1/4 FRN-R-60 FRN-R-75 FRN-R-500
FRN-R-1 1/2 FRN-R-7 FRN-R-8ID FRN-R-80 FRN-R-600
FRN-R-1 6/10 FRN-R-7 1/2 FRN-R-9ID FRN-R-85  

The part numer finishing with "ID" is with open fuse indication.

Carton Quantity

Amp Rating Carton Qty.
1/10-15 10
17 1/2-30 10
35-60 10
70-100 5
101-200 1
201-400 1
401-600 1

Dimensions - in

Features:
• Provides motor overload, ground fault and short-circuit protection
• Helps protect motors against burnout from overloads
• 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 ampere rating of the fuse for a minimum of ten seconds.

Recommended Fuse Blocks
Fuse Amps 1-Pole 2-Pole 3-Pole
0-30 H25030-1 H25030-2 H25030-3
R25030-1 R25030-2 R25030-3
35-60 H25060-1 H25060-2 H25060-3
R25060-1 R25060-2 R25060-3
70-100 RM25100-1CR RM25100-2CR RM25100-3CR
110-200 RM25200-1CR RM25200-2CR RM25200-3CR
225-400 RM25400-1CR RM25400-2CR RM25400-3CR
450-600 RM25600-1CR RM25600-2CR RM25600-3CR
Fuse Reducers For Class R Fuses
Equipment Fuse Clips Desire Fuse (Case) Size Catalog Numbers (Pairs) 250V
60A 30A NO.263-R
100A 30A NO.213-R
60A NO.216-R
200A 60A NO.226-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
5000 1000 2000
10,000 2000 3000
15,000 2000 3000
20,000 2000 4000
25,000 2000 4000
30,000 2000 4000
35,000 2000 4000
40,000 2000 5000
50,000 3000 5000
60,000 3000 5000
70,000 3000 6000
80,000 3000 6000
90,000 3000 6000
100,000 3000 6000
150,000 4000 7000
200,000 4000 8000

Prosp. 
S.C.C.
 Let-Through Current 
(Apparent RMS Symmetrical  Vs. Fuse Rating)
100A 200A 400A 600A
5000 3000 5000 5000 5000
10,000 4000 7000 10,000 10,000
15,000 5000 8000 11,000 15,000
20,000 5000 8000 12,000 16,000
25,000 6000 9000 13,000 17,000
30,000 6000 10,000 14,000 18,000
35,000 6000 10,000 15,000 19,000
40,000 7000 11,000 15,000 20,000
50,000 7000 11,000 17,000 21,000
60,000 8000 12,000 18,000 22,000
70,000 8000 13,000 19,000 23,000
80,000 8000 13,000 19,000 24,000
90,000 9000 14,000 20,000 25,000
100,000 9000 14,000 21,000 26,000
150,000 10,000 16,000 24,000 29,000
200,000 11,000 18,000 26,000 32,000