JJS FUSE

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JJS Limitron™ 600Vac, 1-800A, fast-acting
Class T fuses


Catalog Symbol:
• JJS-(amp)

Description:
Eaton’s Bussmann™ series Limitron™ advanced 
protection Class T current-limiting, fast-acting
fuses.

Specifications:
Ratings
• Volts — 600 Vac
• Amps — 1-800 A
• IR — 200 kA Vac RMS Sym.

Agency Information
• UL® Listed, Std. 248-15, Class T, Guide JDDZ,
  File E4273
• CSA® Certified, C22.2 No. 248.15, Class 142202,
  File 53787
• CE
• RoHS complaint

Features:
• Provides 10X better current limitation to help
  prevent equipment damage caused by short-
  circuit events.
• 200 kA Interrupting rating complies with NEC®
  Section 110.9 for today’s large capacity systems.
• Fast-acting fuse helps prevent equipment
  damage caused by short-circuit events.
• Small, space-saving fuses provide a high
  degree of current limitation on short-circuits for
  excellent component protection.
• Ideal for critical industrial or commercial
  applications that have specific current limitation
  requirements.

Catalog numbers (amps)-non-indicating fuses
JJS-1 JJS-30 JJS-90 JJS-250
JJS-2 JJS-35 JJS-100 JJS-300
JJS-3 JJS-40 JJS-110 JJS-350
JJS-6 JJS-45 JJS-125 JJS-400
JJS-10 JJS-50 JJS-150 JJS-450
JJS-15 JJS-60 JJS-175 JJS-500
JJS-20 JJS-70 JJS-200 JJS-600
JJS-25 JJS-80 JJS-225 JJS-800

Carton quantity

Amp rating Carton qty.
Up to 60 10
70-100 5
110-800 1 

Dimensions – in

Custom designs
Printed circuit board versions available up to 60 amps. Consult your
Bussmann series product representative for details.
UL Component Recognized, Guide JFHR2, File E56412.

Dimensions — in
 
Recommended fuse blocks* 

Fuse amps 1-Pole 2-Pole 3-Pole
up to30 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_ -  
* For additional information, see data sheet no. 1116.

Time-current curves - average melt

Current-limitation curves
 
Current-limiting effects
Prosp. S.C.C. Let-through current (apparent RMS Sym vs. rating fuse)
- 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 10,000 14,000 17,000
60,000 1000 2000 3000 4000 6000 10,000 16,000 18,000
70,000 1000 2000 3000 4000 7000 11,000 17,000 19,000
80,000 1000 2000 3000 4000 7000 11,000 17,000 20,000
90,000 1000 2000 3000 4000 7000 12,000 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