POWR-GARD
®
Fuse Datasheet
L70S SERIES HIGH-SPEED FUSE
700 Vac • 650 Vdc • 10-800 A • Traditional Round Body Style
Specifications
Voltage Rating
Amperage Rating
700 Vac
650 Vdc
10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80,
90, 100, 125, 150, 175, 200, 225, 250, 300,
350, 400, 450, 500, 600, 700, 800
AC: 200 kAIC
DC: 20 kAIC
Body: Melamine
Terminals: Copper (silver plated)
Cylindrical (10 - 30 A)
Bolted Tags (35 - 800 A)
-55˚ C to +125˚ C
Up to 35˚ C with relative humidity less than 65%
UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
RoHS Compliant
Mexico
Interrupting Rating
Material
Mounting Type
Operating Temperature
Storage Temperature
Approvals
Description
Littelfuse L70S Series High-Speed Fuses are designed
to protect today’s equipment and systems, and are
manufactured with Littelfuse-developed technology that
sets tomorrow’s standards for accuracy, consistent quality,
reliability, and predictable performance.
Littelfuse engineers have redefined High-Speed Fuse
technology by using advanced metallurgical, polymer,
and materials research, mathematical modeling, and
computerized statistical analysis.
Environmental
Country of Origin
Part Numbering System
L70S xxx .T
Series
Amp Code
Package Quantity
Features/Benefits
•
•
•
•
•
•
•
•
•
Extremely Current Limiting
Low Watt Losses
Controlled Transient Over-voltages
UL Recognized
AC & DC Drives
DC Common Bus Protection
Power Converters
UPS
Soft-Starters
Refer to Amp Code
Column in Ordering
Information Table
SERIES
L70S
L70S
AMP
10
500
Refer to Pack Qty.
Column in Ordering
Information Table
ORDERING NUMBER
L70S010.T
L70S500.X
CATALOG NUMBER
L70S010
L70S500
Applications
Recommended Fuse Block
LSCR001 (35–100 A)
LSCR002 (125–800 A)
Web Resources
Download technical documents:
littelfuse.com/L70S
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© 2015 Littelfuse POWR-GARD
®
Products
Rev: 021815
POWR-GARD
®
Fuse Datasheet
L70S SERIES HIGH-SPEED FUSE
Recommended Torque Values For Bus Bar Mounting
RECOMMENDED TORQUE VALUES FOR BUS BAR MOUNTING FUSE
CATALOG NUMBER
L70S035
L70S040
L70S050
L70S060
L70S070
L70S080
L70S090
L70S100
L70S125
L70S150
L70S175
L70S200
L70S225
L70S250
L70S300
L70S350
L70S400
L70S450
L70S500
L70S600
L70S700
L70S800
FUSE TORQUE–METRIC (STANDARD)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
8 N m (70.81 in-lb)
8 N m (70.81 in-lb)
8 N m (70.81 in-lb)
8 N m (70.81 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
15 N m (132.76 in-lb)
54 N m (477.94 in-lb)
54 N m (477.94 in-lb)
54 N m (477.94 in-lb)
75 N m (663.81 in-lb)
75 N m (663.81 in-lb)
HARDWARE SIZE–METRIC (STANDARD)
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M6 (1/4")
M6 (1/4")
M6 (1/4")
M6 (1/4")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M8 (5/16")
M12 (1/2")
M12 (1/2")
M12 (1/2")
M14 (9/16")
M14 (9/16")
Temperature De-rating Curve (Temperature of Air Immediately Surrounding Fuse)
60
PERCENT OF UPRATING
40
20
0
0
PERCENT OF DOWNRATING
20
40
60
-60˚ C
-76˚ F
-40˚ C
-40˚ F
-20˚ C
-4˚ F
0˚ C
-32˚ F
20˚ C
68˚ F
40˚ C
104˚ F
60˚ C
140˚ F
80˚ C
176˚ F
100˚ C
212˚ F
120˚ C
248˚ F
140˚ C
284˚ F
AMBIENT TEMPERATURE
littelfuse.com
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© 2015 Littelfuse POWR-GARD
®
Products
Rev: 021815
POWR-GARD
®
Fuse Datasheet
L70S SERIES HIGH-SPEED FUSE
Time Current Curves
100000
90000
80000
70000
60000
50000
40000
100000
90000
80000
70000
60000
50000
40000
10000
9000
8000
7000
6000
5000
4000
20000
30000
10000
9000
8000
7000
6000
5000
4000
20000
30000
1000
900
800
700
600
500
400
2000
3000
1000
900
800
700
600
500
400
2000
3000
100
90
80
70
60
50
40
200
300
100
90
80
70
60
50
40
200
300
10
9
8
7
6
5
4
20
30
10
20
30
1
2
3
4 5 6 7 89
1
2
3
100
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
10
9
8
7
6
5
4
3
2
10
9
8
7
6
5
4
3
2
- 60A
- 50A
- 40A
- 35A
10
9
8
7
6
5
4
3
2
Melting (Pr
re‐arcing) Time in Seconds
25A -
20A -
15A -
0.3
0.2
0.3
0.2
Melting (Pre‐arcing) Time in Seconds
1
0.9
0.8
0.7
0.6
0.5
0.4
04
30A -
1
0.9
0.8
0.7
0.6
0.5
0.4
04
1
0.9
0.8
0.7
0.6
0.5
0.4
04
0.3
0.2
1
0.9
0.8
0.7
0.6
0.5
0.4
04
- 10A
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0001
10
9
8
7
6
5
4
20
30
100
90
80
70
60
50
40
200
300
1000
900
800
700
600
500
400
2000
3000
10000
9000
8000
7000
6000
5000
4000
20000
30000
100000
90000
80000
70000
60000
50000
40000
1
100
2
3
200
0.0001
0.0001
10
9
8
7
6
5
4
20
30
100
90
80
70
60
50
40
200
300
1000
900
800
700
600
500
400
2000
3000
10000
9000
8000
7000
6000
5000
4000
20000
30000
100000
90000
80000
70000
60000
50000
40000
1
2
3
0.0001
Prospective R.M.S Current in Ampere
TEST VOLTAGE:
BASIS FOR DATA:
700V
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
TEST VOLTAGE:
BASIS FOR DATA:
700V
Prospective R.M.S Current in Ampere
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
L70S 10A - 800A
L70S 10A - 800A
LITTELFUSE, INC.
CHICAGO, IL. USA
2000
10000
9000
8000
7000
6000
1000
900
800
700
600
3000
4000
5000
DRAWN BY:
LLL
DATE:
1/23/2015
REVISION:
A
20000
30000
40000
DRAWING NO.:
LITTELFUSE, INC.
CHICAGO, IL. USA
2000
10000
9000
8000
7000
6000
1000
900
800
700
600
3000
4000
5000
100
200
300
400
500
DRAWN BY:
LLL
DATE:
1/23/2015
REVISION:
A
20000
30000
40000
DRAWING NO.:
100000
90000
80000
70000
60000
200000
100000
90000
80000
70000
60000
200000
50000
50000
100
90
80
70
60
50
40
30
20
TIME CURRENT CHARACTERISTIC CURVES
300
400
500
FCC01 L70S
FCC01-L70S
SHEET 2 OF 5
- THIS DATA IS GENERATED IN EXCEL -
- 600A
- 500A
- 450A
100
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
TIME CURRENT CHARACTERISTIC CURVES
FCC01 L70S
FCC01-L70S
SHEET 3 OF 5
- THIS DATA IS GENERATED IN EXCEL -
- 800A
- 700A
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
- 200A
- 175A
- 150A
- 125A
10
9
8
7
6
5
4
3
2
10
9
8
7
6
5
4
3
2
10
9
8
7
6
5
4
3
2
- 400A
1
0.9
0.8
0.7
0.6
0.5
0.4
04
0.3
0.2
1
0.9
0.8
0.7
0.6
0.5
0.4
04
0.3
0.2
1
0.9
0.8
0.7
0.6
0.5
0.4
04
0.3
0.2
- 350A
- 300A
- 250A
- 225A
Melting (Pre‐arcing) Time in Seconds
Melting (Pre‐arcing) Time in Seconds
1
0.9
0.8
0.7
0.6
0.5
0.4
04
0.3
0.2
100A -
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
90A -
80A -
70A -
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.01
0.0090
0.0080
0.0070
0.0060
0.0050
0.0040
0.0030
0.0020
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0010
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0 0003
0.0002
0.0001
100
200
300
400
500
1000
900
800
700
600
2000
3000
4000
5000
10000
9000
8000
7000
6000
20000
30000
40000
50000
100000
90000
80000
70000
60000
200000
0.0001
0.0001
100
200
300
400
500
1000
900
800
700
600
2000
3000
4000
5000
10000
9000
8000
7000
6000
20000
30000
40000
50000
100000
90000
80000
70000
60000
200000
0.0001
Prospective R.M.S Current in Ampere
TEST VOLTAGE:
BASIS FOR DATA:
700V
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
TEST VOLTAGE:
BASIS FOR DATA:
700V
Prospective R.M.S Current in Ampere
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
L70S 10A - 800A
L70S 10A - 800A
littelfuse.com
LITTELFUSE, INC.
CHICAGO, IL. USA
DRAWN BY:
LLL
DATE:
1/23/2015
REVISION:
A
DRAWING NO.:
5 of 7
SHEET 4 OF 5
LITTELFUSE, INC.
CHICAGO, IL. USA
© 2015 Littelfuse POWR-GARD
®
Products
DRAWING NO.:
DRAWN BY:
LLL
DATE:
1/23/2015
REVISION:
A
TIME CURRENT CHARACTERISTIC CURVES
FCC01 L70S
FCC01-L70S
TIME CURRENT CHARACTERISTIC CURVES
FCC01 L70S
FCC01-L70S
SHEET 5 OF 5
Rev: 021815
- THIS DATA IS GENERATED IN EXCEL -
- THIS DATA IS GENERATED IN EXCEL -
Analog electronics
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