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JJN LIMITRON™ 300V Class T Fast-acting Fuses

JJN LIMITRON™ 300V Class T Fast-acting Fuses

Description: Advanced protection Class T current -limiting,fast-acting fuses.

Catalog Symbol: JJN-(amp)

Ratings:
Volts: 300Vac (1-10A); 300Vac, 160Vdc (15-600A); 300Vac, 170Vdc (700-1200A)
Amps: 1-1200A
IR: 200kA Vac RMS Sym. 20kA Vdc (15-600A); 100kA Vdc (700-1200A)

Agency Information:
CE, UL Listed, Std. 248-15, Class T, Guide JDDZ, File E4273
CSA Certified, C22.2 No. 248.15, Class 1422-02, File 53787

Features:
• Small, space-saving fuses provide a high degree of current limitation on short-circuits for excellent component protection
• Commonly applied in electric heat circuits, load center, disconnect switches, and meters
• The small size of the JJN Class T fuses permits installation in panelboards and control centers for system upgrading when existing circuit breakers cannot safely interrupt larger available short-circuit currents
• High speed of response for semiconductor protection

Catalog Numbers (amps)

JJN-1 JJN-35 JJN-110 JJN-400
JJN-2 JJN-40 JJN-125 JJN-450
JJN-3 JJN-45 JJN-150 JJN-500
JJN-6 JJN-50 JJN-175 JJN-600
JJN-10 JJN-60 JJN-200 JJN-700
JJN-15 JJN-70 JJN-225 JJN-800
JJN-20 JJN-80 JJN-250 JJN-1000
JJN-25 JJN-90 JJN-300 JJN-1200
JJN-30 JJN-100 JJN-350  

Dimensions – in

Recommended Fuse Blocks

Fuse Amps 1-Poles 2-Pole 3-Pole 4-Pole
½-30 - T30030-2_ T30030-3_ T30030-4_
35-60 - T30060-2_ T30060-3_ T30060-4_
70-100 - T30100-1_ T30100-2_ T30100-3_
110-200 T30200-1_ - - -
200 1B0083 - - -
225-400 T30400-1_ - - -
450- 600 T30600-1_ - - -

Time-Current Curves - Average Melt

Current-Limitation Curves

Current-Limiting Effects

Prosp.  S.C.C.  Gui                                    Let-Through Current  (Apparent RMS Symmetrical  Vs. Fuse Rating)
  15A 30A 60A 100A 200A 400A 600A 800A 1200A
500 1000 1000 1000 1000 1000 1000 1000 1000 1000
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
5000 1000 1000 1000 1000 2000 3000 5000 5000 5000
10,000 1000 1000 1000 2000 2000 4000 6000 7000 9000
15,000 1000 1000 1000 2000 3000 4000 6000 9000 10,000
20,000 1000 1000 1000 2000 3000 5000 7000 10,000 11,000
25,000 1000 1000 2000 2000 3000 5000 7000 10,000 12,000
30,000 1000 1000 2000 2000 3000 5000 8000 11,000 13,000
35,000 1000 1000 2000 3000 4000 6000 8000 11,000 13,000
40,000 1000 1000 2000 3000 4000 6000 9000 11,000 13,000
50,000 1000 1000 2000 3000 4000 7000 9000 12,000 15,000
60,000 1000 1000 2000 3000 4000 7000 10,000 13,000 16,000
70,000 1000 1000 2000 3000 5000 7000 10,000 14,000 17,000
80,000 1000 2000 2000 3000 5000 8000 11,000 15,000 17,000
90,000 1000 2000 2000 3000 6000 8000 11,000 15,000 18,000
100,000 1000 2000 2000 4000 6000 8000 12,000 16,000 19,000
150,000 1000 2000 3000 4000 6000 9000 13,000 17,000 22,000
200,000 2000 2000 3000 4000 7000 9000 15,000 19,000 23,000

 


Custom Designs
Printed circuit board versions available up to 60 amps.
 
Dimensions - in

Fuse Amps/Catalog Number
PN A B
JJN-1L 0.406 0.125
JJN-2L
JJN-3L
JJN-6L
JJN-10L
JJN-15L
JJN-20L
JJN-25L
JJN-30L
JJN-35L 0.563 0.125
JJN-40L
JJN-45L
JJN-50L
JJN-60L
JJN-35L-01 0.563 0.165
JJN-40L-01
JJN-45L-01
JJN-50L-01
JJN-60L-01

The JJN-XXL products are UL Component Recognized under Guide JFHR2, File E56412.