Littelfuse JLLs User Manual
POWR-GARD® Fuse Datasheet
CLASS T – JLLN / JLLS SERIES FUSES
300/600 VAC • Fast-Acting • 1-1200 A
Ordering Information
1 30 90 250 800
2 35 100 300 900*
3 40 110 350 1000
6 45 125 400 1100
10 50 150 450 1200
15 60 175 500
Description
JLLN/JLLS fuses are less than 1/3 the size of comparable
Class R fuses and are typically used for short circuit
protection of drives and surge sensitive components. When
rated in accordance with the NEC
®
, JLLN/JLLS fuses provide
fast-acting overload and short circuit protection for noninductive circuits and equipment.
Applications
• Variable speed drive protection
• Compact mains switches
20 70 200 600
25 80 225 700
*JL L S o n l y
Note: Contact the factory for RoHS compliant Class T fuses.
SERIES VOLTA GE AMP
JLLS 600 6 – JLLS006 JLLS006.T
JLLN 300 35 V JLLN035V JLLN035.TXV
Part Numbering System
AMPERE R ATINGS
MOUNTING
SUFFIX
CATALOG
NUMBER
ORDERING
NUMBER
Features/Benefits
• Extremely current-limiting
• Compact design
• 200 kA Interrupting Rating
Specifications
Voltage Ratings AC: 300 V (JLLN)
600 V (JLLS)
DC: 160 V (JLLN 1 – 60 A)
125 V (JLLN 70 – 1200 A)
300 V (JLLS)
Interrupting Ratings AC: 200 kA rms symmetrical
DC: 20 k A (JLLN & JLLS)
Ampere Range 1 – 1200 A
Approvals AC: Standard 248-15, Class T
UL Listed (File: E81895) :
JLLN (1 – 1200 A)
JLLS (1 – 800 A)
UL Recognized (File: E71611)
JLLN PCB Mount (35 – 60 A)
JLLS ( 900 – 1200 A)
CSA Certified (File: LR29862)
JLLN/JLLS (1 – 600 A)
DC: UL Listed (File: E81895):
JLLN (35 – 1200 A)
Littelfuse self-certified
JLLN (1 – 30 A)
JLLS (1 – 1200 A)
Environmental RoHS Compliant
JLLN xxx T XL
Series
Amperage
Package Quantity
T = 10 (1-60 A )
V = 5 (70-100 A)
X = 1 (110-1200 A)
Mounting Options
JLLN 35-6 0 A Only
Blank = Cartridge Type
XL = Leaded
XV = Vertical Mount
XLS = Solder Lead
Web Resources
TC Curves, downloadable CAD drawings and other technical
information:
Littelfuse.com/jlln
Littelfuse.com/jlls
Recommended Fuse Holders
LFT30 Series
LFT60 Series
LSCR Series for 700-800 A
Dimensions
Please refer to the Class T dimensions on page 3
1 of 3
© 2013 Littelfuse POWR-GARD® ProductsLittelfuse.com
Rev: 012413
POWR-GARD® Fuse Datasheet
2000
3000
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20000
30000
40000
60000
80000
100000
200000
100
200
300
400
600
800
1000
100
200
300
400
600
800
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
300000
400000
600000
800000
1000000
800A
600A
400A
200A
100A
60A
30A
PEAK LET-THRU IN AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
JLLS
CLASS T – JLLN / JLLS SERIES FUSES
Peak Let-Thru Curve and Current-Limiting Effects of JLLN (300 V) Fuses
JLLN
1000000
800000
600000
400000
300000
200000
100000
80000
60000
40000
30000
20000
10000
PEAK LET-THRU IN AMPERES
8000
6000
4000
3000
2000
1000
SHORT
CIRCUIT
CURRENT*
5,000
10,000
15,000
1200A
800A
600A
400A
200A
100A
60A
30A
20,000
25,000
30,000
35,000
40,000
50,000
60,000
800
600
400
300
200
100
100
200
300
400
600
800
2000
3000
4000
6000
1000
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
8000
10000
20000
30000
40000
60000
80000
100000
200000
80,000
100,000
150,000
200,000
*Prospective RMS Symmetrical Ampere s Shor t-Circuit Current
Note: Data Derived from Peak Let-Thru Curves
APPA RE NT RMS SYMMETRICA L CURRE NT F OR
VARIOUS FUSE RATINGS
30 A 6 0 A 100 A 2 00 A 4 00 A 600 A 800 A 1200 A
700 775 1,100 1,650 3,500 4,000 5,000 5,000
900 1,000 1, 4 0 0 2 ,100 4,400 5,10 0 6,750 8,250
1,000 1,100 1, 600 2,400 5,000 5,900 7,750 10,000
1,100 1,25 0 1,80 0 2,700 5,500 6,500 8,750 11,000
1,230 1, 300 1, 950 2,900 6,000 7,000 9,500 12,000
1,3 00 1,47 5 2,050 3,100 6,400 7,500 10,000 12,500
1,3 30 1,57 5 2,150 3,300 6,750 7,7 5 0 10,500 13,500
1,4 30 1,60 0 2,300 3,500 7,000 8,000 11,000 14,000
1,500 1,7 50 2,400 3,700 7,500 8,750 12,000 15,000
1,700 1,900 2,700 4,000 8,000 9,500 12,500 16,000
1,8 50 2,10 0 2,800 4,400 9,000 10,500 14,000 17,500
2,000 2,250 3,15 0 4,800 9,750 11,500 15,000 18,500
2,300 2,600 3,600 5,500 11,000 13,000 17,500 22,000
2,600 2,800 3,900 6,000 12,000 14,500 19,500 24,000
Peak Let-Thru Curve and Current-Limiting Effects of JLLS (600 V) Fuses
JLLS
1000000
800000
600000
400000
300000
200000
100000
80000
60000
40000
30000
20000
10000
8000
6000
4000
3000
2000
PEAK LET-THRU IN AMPERES
1000
800
600
400
300
200
100
SHORT
CIRCUIT
CURRENT*
5,000
10,000
15,000
800A
600A
400A
200A
100A
60A
30A
100
200
300
400
600
800
2000
3000
4000
6000
1000
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
8000
10000
20000
30000
40000
60000
80000
100000
200000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
*Prospective RMS Symmetrical Ampere s Shor t-Circuit Current
Note: Data Derived from Peak Let-Thru Curves
2 of 3
APPA RE NT RMS SYMMETRICA L CURRE NT F OR
VARIOUS FUSE RATINGS
30 A 60 A 100 A 200 A 400 A 600 A 8 00 A 1200 A
750 1,22 5 1,4 00 2,850 4,600 5,000 5,000 5,000
945 1, 525 1,7 0 0 3,600 6,000 8,500 9,400 10,000
1,0 5 0 1,700 2,000 4,050 6,600 9,750 10,500 13,000
1,150 1,900 2,200 4,450 7,25 0 10,500 11,000 14,750
1,3 00 2,050 2,400 4,800 8,000 11,500 12,500 15,500
1,3 75 2,150 2,450 5,000 8,250 12,000 13,75 0 16,500
1,4 00 2,250 2,600 5,100 8,500 13,000 14,000 17,000
1,4 25 2,400 2,800 5,200 8,700 14,000 14,750 18,000
1,6 0 0 2,450 2,900 6,000 9,500 14,500 16,000 20,000
1,6 5 0 2,625 3,100 6,250 10,000 15,500 17,3 0 0 21,000
1,8 25 2,800 3,400 7,000 11,000 17,000 18,7 50 23,000
2,000 3,100 3,70 0 7, 2 5 0 12,000 18,000 20,000 25,000
2,250 3,400 4,300 8,500 13,000 21,000 23,000 28,500
2,450 3,800 4,600 9,000 15,000 23,000 25,000 31,000
© 2013 Littelfuse POWR-GARD® ProductsLittelfuse.com
Rev: 012413
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