cooper bussmann

JJS LIMITRON™ 600V Class T Fast-acting Fuses

  
Description:
Advanced protection Class T current-limiting, fast-acting fuses.
 
Catalog Symbol: JJS-(amp)
 
Ratings:
Volts: 600Vac
Amps: 1-800A
IR: 200kA Vac RMS Sym.
 
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 currentlimitation on short-circuits for excellent component protection
• Commonly applied in electric heat circuits, load center, disconnect switches, and meters
• The small size of the JJS 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 response for semiconductor protection
• Available for printed circuit board applications
 
Catalog Numbers (amps)
JJS-1 JJS-25 JJS-70 JJS-175 JJS-450
JJS-2 JJS-30 JJS-80 JJS-200 JJS-500
JJS-3 JJS-35 JJS-90 JJS-225 JJS-600
JJS-6 JJS-40 JJS-100 JJS-250 JJS-800
JJS-10 JJS-45 JJS-110 JJS-300  
JJS-15 JJS-50 JJS-125 JJS-350  
JJS-20 JJS-60 JJS-150 JJS-400  


Dimensions – in


Recommended Fuse Blocks
Amps Rating 1-Pole 2-Pole 3-Pole
1-30 T60030-1_ T60030-2_ T60030-3_
35-60 T60060-1_ T60060-2_ T60060-3_
70-100 T60100-1_ T60100-2_ T60100-3_
110-200 T60200-1_   1B0089
225-400 T60400-1_    
450-600 T60600-1_    


Time-Current Curves - Average Melt


Current-Limitation Curves


Current-Limiting Effects
Prosp. S.C.C. Let-Through Current (Apparent RMS Symmetrical Vs. Fuse Rating)
  15A 30A 60A 100A 200A 400A 600A 800A
500 1000 1000 1000 1000 1000 1000 1000 1000
1000 1000 1000 1000 1000 1000 1000 1000 1000
5000 1000 1000 1000 2000 3000 4000 5000 5000
10,000 1000 1000 1000 2000 3000 6000 8000 9000
15,000 1000 1000 2000 3000 4000 7000 10,000 11,000
20,000 1000 1000 2000 3000 4000 7000 10,000 12,000
25,000 1000 1000 2000 3000 5000 7000 11,000 13,000
30,000 1000 1000 2000 3000 5000 8000 12,000 14,000
35,000 1000 1000 2000 3000 5000 9000 13,000 15,000
40,000 1000 2000 2000 4000 5000 9000 13,000 15,000
50,000 1000 2000 2000 4000 6000 10000 14,000 17,000
60,000 1000 2000 3000 4000 6000 10000 16,000 18,000
70,000 1000 2000 3000 4000 7000 11000 17,000 19,000
80,000 1000 2000 3000 4000 7000 11000 17,000 20,000
90,000 1000 2000 3000 4000 7000 12000 18,000 21,000
100,000 2000 2000 3000 5000 7000 12,000 19,000 22,000
150,000 2000 3000 4000 6000 8000 14,000 22,000 25,000
200,000 2000 3000 4000 6000 9000 16,000 24,000 28,000



Custom Designs

Printed circuit board versions available up to 60 amps.
UL Component Recognized, Guide JFHR2, File E56412.
 
Catalog Numbers
JJS-1V JJS-15V JJS-40V
JJS-2V JJS-20V JJS-45V
JJS-3V JJS-25V JJS-50V
JJS-6V JJS-30V JJS-60V
JJS-10V JJS-35V  

Dimensions - in

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