100
Square Body Semiconductor Fuses
700/1300 VAC
I
Very Fast-Acting
I
63 2500 Amperes
SPECIFICATIONS
Voltage Rating: AC: 700 Volts (LA070)
1300 Volts (LA130)
DC: Contact factory
Interrupting Rating: AC: 200,000 Amperes (LA070)
100,000 Amperes (LA130)
DC: Contact factory
Ampere Range: 63 2500 Amperes
Approvals: UL Recognized Component
Littelfuse's North American style square body semiconductor
fuses provide maximum flexibility in equipment design and
ultimate protection for today's power conversion equipment.
Available in different body sizes and multiple mounting
styles, the broad range of ampere ratings allows great flexi-
bility in equipment design.
Engineered to provide state-of-the-art protection for SCR's,
diodes, thyristors, GTO's, and IGBT devices, Littelfuse
square body fuses have pure die-cut elements embedded in
solidified sand to control arcing and lower I
2
t. All fuses are
also equipped with a blown fuse trip indicator.
FEATURES
I
Choice of mounting styles provides a wide choice for
equipment design.
I
Broad range of ampere ratings in a given body size for
design flexibility.
I
Very low I
2
t minimizes damage to protected components.
I
Superior cycling ability for long, reliable life on high
cyclic loading.
I
Extremely fast-acting and current limiting for improved
protection to equipment.
APPLICATIONS
Protection of rectifiers, inverters, DC drives, UPS systems,
reduced voltage motor starters, and other equipment in glob-
ally accepter applications.
LA 070 URD 31 LI 350
Class
Littelfuse
Mounting
Types
Voltage
070=700V
130=1300V
ORDERING INFORMATION
Amp
Rating
Straight-blade KI LI
Straight-blade LI LLI
Flat-type, one hole TTI
TTI
Size
700V 1300V
30
70
31
71
32
72
33
73
NEW
63
700
0.2
1.2
14
LA070URD30LI0063
LA070URD30KI0063
LA070URD30TTI0063
80
700
0.33
1.9
19
LA070URD30LI0080
LA070URD30KI0080
LA070URD30TTI0080
100
700
0.47
2.7
26
LA070URD30LI0100
LA070URD30KI0100
LA070URD30TTI0100
125
700
0.85
4.9
30
LA070URD30LI0125
LA070URD30KI0125
LA070URD30TTI0125
160
700
1.6
9.2
37
LA070URD30LI0160
LA070URD30KI0160
LA070URD30TTI0160
200
700
3
16.7
42/43
LA070URD30LI0200
LA070URD30KI0200
LA070URD30TTI0200
30
250
700
5.8
32.4
48/50
LA070URD30LI0250
LA070URD30KI0250
LA070URD30TTI0250
315
700
12
67
53/55
LA070URD30LI0315
LA070URD30KI0315
LA070URD30TTI0315
350
700
15.5
86
57/60
LA070URD30LI0350
LA070URD30KI0350
LA070URD30TTI0350
400
700
23
130
60/65
LA070URD30LI0400
LA070URD30KI0400
LA070URD30TTI0400
450
700
26
165
80/88
LA070URD30LI0450
LA070URD30KI0450
LA070URD30TTI0450
500
700
41
264
80/88
LA070URD30LI0500
LA070URD30KI0500
LA070URD30TTI0500
550
700
52
330
80/90
LA070URD30LI0550
LA070URD30KI0550
LA070URD30TTI0550
200
700
2.5
14.6
45
LA070URD31LI0200
LA070URD31KI0200
LA070URD31TTI0200
250
700
4.7
27
52
LA070URD31LI0250
LA070URD31KI0250
LA070URD31TTI0250
315
700
7.5
43
65
LA070URD31LI0315
LA070URD31KI0315
LA070URD31TTI0315
350
700
10.5
59
67
LA070URD31LI0350
LA070URD31KI0350
LA070URD31TTI0350
400
700
19
110
68
LA070URD31LI0400
LA070URD31KI0400
LA070URD31TTI0400
31
450
700
26.5
150
70
LA070URD31LI0450
LA070URD31KI0450
LA070URD31TTI0450
500
700
37
210
70/72
LA070URD31LI0500
LA070URD31KI0500
LA070URD31TTI0500
550
700
52
300
70/75
LA070URD31LI0550
LA070URD31KI0550
LA070URD31TTI0550
630
700
75
421
75/85
LA070URD31LI0630
LA070URD31KI0630
LA070URD31TTI0630
700
700
95
530
85/95
LA070URD31LI0700
LA070URD31KI0700
LA070URD31TTI0700
800
700
140
880
105/120
LA070URD31LI0800
LA070URD31KI0800
LA070URD31TTI0800
400
700
15
86
72/75
LA070URD32LI0400
LA070URD32KI0400
LA070URD32TTI0400
450
700
22
124
77/80
LA070URD32LI0450
LA070URD32KI0450
LA070URD32TTI0450
500
700
28
157
85/90
LA070URD32LI0500
LA070URD32KI0500
LA070URD32TTI0500
550
700
37
211
90/95
LA070URD32LI0550
LA070URD32KI0550
LA070URD32TTI0550
630
700
54
302
95/105
LA070URD32LI0630
LA070URD32KI0630
LA070URD32TTI0630
700
700
76
432
100/110
LA070URD32LI0700
LA070URD32KI0700
LA070URD32TTI0700
32
800
700
115
648
110/120
LA070URD32LI0800
LA070URD32KI0800
LA070URD32TTI0800
900
700
170
972
110/125
LA070URD32LI0900
LA070URD32KI0900
LA070URD32TTI0900
1000
700
240
1350
115/135
LA070URD32LI1000
LA070URD32KI1000
LA070URD32TTI1000
1100
650
270
1620
140/165
LA065URD32LI1100
-
LA065URD32TTI1100
1250
600
410
2100
150/180
LA060URD32LI1250
-
LA060URD32TTI1250
1400
550
555
2600
160/190
LA055URD32LI1400
-
LA055URD32TTI1400
1600
550
870
4000
165/195
LA055URD32LI1600
-
LA055URD32TTI1600
1800
500
1050
4400
195/330
LA050URD32LI1800
-
LA050URD32TTI1800
500
700
19
108
105
LA070URD33LI0500
LA070URD33KI0500
LA070URD33TTI0500
550
700
27
151
105/110
LA070URD33LI0550
LA070URD33KI0550
LA070URD33TTI0550
630
700
40
227
110/120
LA070URD33LI0630
LA070URD33KI0630
LA070URD33TTI0630
700
700
55
324
115/125
LA070URD33LI0700
LA070URD33KI0700
LA070URD33TTI0700
800
700
95
529
120/130
LA070URD33LI0800
LA070URD33KI0800
LA070URD33TTI0800
900
700
135
760
120/135
LA070URD33LI0900
LA070URD33KI0900
LA070URD33TTI0900
1000
700
170
970
135/155
LA070URD33LI1000
LA070URD33KI1000
LA070URD33TTI1000
33
1100
700
240
1360
135/160
LA070URD33LI1100
LA070URD33KI1100
LA070URD33TTI1100
1250
700
350
2000
150/180
LA070URD33LI1250
LA070URD33KI1250
LA070URD33TTI1250
1400
700
480
2700
160/200
LA070URD33LI1400
LA070URD33KI1400
LA070URD33TTI1400
1600
650
555
3250
210/240
LA065URD33LI1600
-
LA065URD33TTI1600
1800
650
720
4330
225/260
LA065URD33LI1800
-
LA065URD33TTI1800
2000
600
950
5000
250/290
LA060URD33LI2000
-
LA060URD33TTI2000
2250
550
1250
5900
280/330
LA050URD33LI2250
-
LA055URD33TTI2250
2500
500
1870
7600
280/330
LA050URD33LI2500
-
LA050URD33TTI2500
101
Body
Size
Amp
Rating
700 Volt North American Style Ratings and Application Data
Rated
Voltage
Melting I
2
t
(A
2
S x 10
3
)
Square Body Semiconductor Fuses
700/1300 VAC
I
Very Fast-Acting
I
63 2500 Amperes
Total I
2
t
@ Rated
Voltage
(A
2
S x 10
3
)
**Watts Loss
@ Rated
Current
(W)
Long Blade
Catalog No.
Type LI
Short Blade
Catalog No.
Type KI
Tapped Terminal
Catalog No.
Type TTI
** Watts loss data is published for both blade and tapped style mounting configurations.
When two watts loss values are shown this represents tapped/blade values respectively.
Contact Littelfuse for characteristic curves.
102
Square Body Semiconductor Fuses
700/1300 VAC
I
Very Fast-Acting
I
63 2500 Amperes
1.93 MAX
[49]
2
[50.6]
A
B
C
A
.26
[6.7]
LA070URD30KI (63-550)
1.57
0.98
0.49
0.83
0.71
2.68
4.21
5.08
0.41
(40)
(25)
(12.5)
(21)
(18)
(68)
(107)
(129)
(10.5)
LA070URD31KI (200-800)
2.01
0.98
0.49
1.0
0.89
2.66
4.22
5.07
0.56
(51)
(25)
(12.5)
(25.5)
(22.5)
(67.6)
(107.1)
(128.8)
(14.3)
LA070URD32KI (400-1000)
2.36
1.26
0.63
1.18
1.06
2.92
4.29
5.28
0.57
(60)
(32)
(16)
(30)
(27)
(74.2)
(109)
(134)
(14.6)
LA070URD33KI (500-1400)
2.93
1.57
0.79
1.46
1.35
2.97
4.24
5.28
0.63
(74.5)
(40)
(20)
(37.2)
(34.2)
(75.4)
(107.6)
(134)
(15.9)
CATALOG NUMBER
DIMENSIONS - 700V Fuses
Dimensions for reference only.
DIMENSIONS IN INCHES (mm in parentheses)
A
B
C
D
E
F
G
H
J
North American Straight Blade, Type KI
LA070URD30LI (63-550)
1.57
0.98
0.49
0.83
0.71
3.45
4.98
5.85
0.41
(40)
(25)
(12.5)
(21)
(18)
(87.6)
(126.6)
(148.6)
(10.5)
LA070URD31LI (200-800)
2.01
0.98
0.49
1.0
0.89
3.61
4.82
5.85
0.57
(51)
(25)
(12.5)
(25.5)
(22.5)
(91.6)
(122.4)
(148.6)
(14.6)
LA070URD32LI (400-1000)
2.36
1.26
0.63
1.18
1.06
3.71
5.08
6.02
0.57
LA065URD32LI (1250)
(60)
(32)
(16)
(30)
(27)
(94.2)
(129)
(153)
(14.6)
LA055URD32LI (1400-1600)
LA050URD32LI (1800)
LA070URD33LI (500-1400)
2.93
1.57
0.79
1.46
1.35
3.72
4.98
6.02
0.63
LA065URD33LI (1600-1800)
(74.5)
(40)
(20)
(37.2)
(34.2)
(94.4)
(126.6)
(153)
(15.9)
LA060URD33LI (2000)
LA055URD33LI (2250)
LA050URD33LI (2500)
CATALOG NUMBER
DIMENSIONS - 700V Fuses
Dimensions for reference only.
DIMENSIONS IN INCHES (mm in parentheses)
A
B
C
D
E
F
G
H
J
North American Straight Blade Types LI
LA070URD30TTI (100-550)
1.57
1.00
5/16-18x .35
(40)
(25)
LA070URD31TTI (200-800)
2.00
1.19
5/16-18x .35
(50.8)
(30.2)
LA070URD32TTI (400-1000)
2.37
1.50
3/8-16x .35
LA065URD32TTI (1100)
(60.3)
(38.1)
LA060URD32TTI (1250)
LA055URD32TTI (1400-1600)
LA060URD33TTI (1800)
2.94
1.81
1/2-18x.35
LA070URD33TTI (500-1400)
(74.5)
(46)
LA065URD33TTI (1600)
LA060URD33TTI (2000)
LA055URD33TTI (2250)
LA050URD33TTI (2500)
CATALOG NUMBER
DIMENSIONS - 700V
Dimensions for reference only.
DIMENSIONS IN INCHES (mm)
A
B
C
North American Flat Single Hole, Type TTI
TYPE TTI
TYPES KI AND LI
C
B
F
G
H
J
1.925 MAX
[47.6]
D
A
E
A
.24
[6]
63
1300
0.21
1.8
26
LA130URD70LI0063
LA130URD70TTI0063
80
1300
0.47
4
27
LA130URD70LI0080
LA130URD70TTI0080
100
1300
0.83
7.2
30
LA130URD70LI0100
LA130URD70TTI0100
125
1300
1.3
11
38
LA130URD70LI0125
LA130URD70TTI0125
70
160
1300
2.5
22
45
LA130URD70LI0160
LA130URD70TTI0160
200
1300
4.7
40
54/56
LA130URD70LI0200
LA130URD70TTI0200
250
1300
9.6
82
58/61
LA130URD70LI0250
LA130URD70TTI0250
315
1300
20
172
66/72
LA130URD70LI0315
LA130URD70TTI0315
350
1200
28
205
68/75
LA120URD70LI0350
LA120URD70TTI0350
160
1300
2.6
22
46
LA130URD71LLI0160
LA130URD71TTI0160
200
1300
4.7
40
54
LA130URD71LLI0200
LA130URD71TTI0200
250
1300
8.9
76
61
LA130URD71LLI0250
LA130URD71TTI0250
280
1300
12
102
68/70
LA130URD71LLI0280
LA130URD71TTI0280
315
1300
16
138
73/76
LA130URD71LLI0315
LA130URD71TTI0315
71
350
1300
22
190
76/80
LA130URD71LLI0350
LA130URD71TTI0350
400
1300
38
330
76/80
LA130URD71LLI0400
LA130URD71TTI0400
450
1300
47
405
87/95
LA130URD71LLI0450
LA130URD71TTI0450
500
1200
68
500
90/100
LA120URD71LLI0500
LA120URD71TTI0500
550
1200
84
620
98/112
LA120URD71LLI0550
LA120URD71TTI0550
630
1100
125
930
105
LA110URD71LLI0630
-
630
1200
125
930
120
-
LA120URD71TTI0630
280
1300
10
90
72
LA130URD72LI0280
LA130URD72TTI0280
315
1300
15
130
76
LA130URD72LI0315
LA130URD72TTI0315
350
1300
21
180
77
LA130URD72LI0350
LA130URD72TTI0350
400
1300
32
285
80
LA130URD72LI0400
LA130URD72TTI0400
450
1300
44
380
87/89
LA130URD72LI0450
LA130URD72TTI0450
500
1300
57
500
94/98
LA130URD72LI0500
LA130URD72TTI0500
72
550
1300
68
590
110/120
LA130URD72LI0550
LA130URD72TTI0550
630
1200
105
920
113
LA120URD72LI0630
-
630
1300
105
920
125
-
LA130URD72TTI0630
700
1100
145
1040
122
LA110URD72LI0700
-
700
1200
145
1040
140
-
LA110URD72TTI0700
800
1100
215
1590
125
LA110URD72LI0800
-
800
1200
215
1590
146
-
LA120URD72TTI0800
315
1300
12
102
84
LA130URD73LI0315
LA130URD73TTI0315
350
1300
17
150
86
LA130URD73LI0350
LA130URD73TTI0350
400
1300
25
220
93
LA130URD73LI0400
LA130URD73TTI0400
450
1300
35
310
99/100
LA130URD73LI0450
LA130URD73TTI0450
500
1300
44
390
110/112
LA130URD73LI0500
LA130URD73TTI0500
550
1300
57
500
116/120
LA130URD73LI0550
LA130URD73TTI0550
630
1300
84
730
125/132
LA130URD73LI0630
LA130URD73TTI0630
700
1300
110
960
135/146
LA130URD73LI0700
LA130URD73TTI0700
800
1200
190
1630
136
LA120URD73LI0800
-
73
800
1300
190
1630
148
-
LA130URD73TTI0800
900
1100
250
2160
150
LA110URD73LI0900
-
900
1300
250
2160
170
-
LA130URD73TTI0900
1000
1100
370
2430
152/174
LA110URD73LI1000
LA110URD73TTI1000
1100
1000
445
2580
168/208
LA100URD73LI1100
LA100URD73TTI1100
1250
1000
585
3480
186/200
LA100URD73LI1250
LA100URD73TTI1250
1400
900
755
3880
210/228
LA090URD73LI1400
LA090URD73TTI1400
1600
700
1430
5630
203
LA070URD73LI1600
LA070URD73TTI1600
1800
660
2040
7600
206
LA065URD73LI1800
LA065URD73TTI1800
103
Square Body Semiconductor Fuses
700/1300 VAC
I
Very Fast-Acting
I
63 2500 Amperes
Body
Size
Amp
Rating
1300 Volt North American Style Ratings and Application Data
Rated
Voltage
Melting I
2
t
(A
2
S x 10
3
)
Total I
2
t
@ Rated
Voltage
(A
2
S x 10
3
)
**Watts Loss
@ Rated
Current
(W)
Long Blade
Catalog No.
Type LI/LLI
Tapped Terminal
Catalog No.
Type TTI
** Watts loss data is published for both blade and tapped style mounting configurations.
When two watts loss values are shown this represents tapped/blade values respectively.
Contact Littelfuse for characteristic curves.
104
Square Body Semiconductor Fuses
700/1300 VAC
I
Very Fast-Acting
I
63 2500 Amperes
2.85 MAX
[72.5]
2.91
[74]
A
B
A
C
0.2
[5.03]
LA130URD70LI (63-315)
1.57
0.98
0.49
0.83
0.71
3.60
5.13
6.00
0.41
LA120URD70LI (350)
(40)
(25)
(12.5)
(21)
(18)
(91.4)
(130.4)
(152.4)
(10.5)
LA130URD71LLI (160-450)
2.01
0.98
0.49
1.0
0.89
3.60
5.13
6.00
0.57
LA120URD71LLI (500-550)
(51)
(25)
(12.5)
(26.5)
(22.5)
(91.4)
(130.4)
(152.4)
(14.6)
LA110URD71LLI (630)
LA130URD72LI (280-550)
2.36
1.26
0.63
1.18
1.06
3.84
5.2
6.20
0.57
LA120URD72LI (800)
(60)
(32)
(16)
(30)
(27)
(97.6)
(132.4)
(157.4)
(14.6)
LA110URD72LI (700-800)
LA130URD73LI (315-700)
2.93
1.57
0.79
1.46
1.35
3.89
5.21
6.20
0.63
LA120URD73LI (800)
(74.5)
(40)
(20)
(37.2)
(34.2)
(98.8)
(132.4)
(157.4)
(15.9)
LA110URD73LI (900-1000)
LA090URD73LI (1400)
LA070URD73LI (1600)
LA065URD73LI (1800)
CATALOG NUMBER
DIMENSIONS - 1300V Fuses
Dimensions for reference only.
DIMENSIONS IN INCHES (mm in parentheses)
A
B
C
D
E
F
G
H
J
LA130URD70TTI (63-315)
1.57
1.00
5/16-18x .23 DP
LA120URD70TTI (350)
(40)
(26.4)
LA130URD71TTI (160-450)
2.01
1.19
5/16-18x .36 DP
LA120URD71TTI (550-630)
(51)
(30.2)
LA130URD72TTI (280-630)
2.36
1.50
3/8-18x .36 DP
LA120URD72TTI (700-800)
(60)
(38.1)
LA130URD73TTI (315-900)
2.93
1.81
1/2-18x.36 DP
LA120URD73TTI (1000)
(74.5)
(46)
LA110URD73TTI (1250)
LA090URD73TTI (1400)
LA070URD73TTI (1600)
LA065URD73TTI (1800)
CATALOG NUMBER
DIMENSIONS - 1300V
Dimensions for reference only.
DIMENSIONS IN INCHES (mm)
A
B
C
TYPES LI AND LLI
TYPE TTI
North American Flat Single Hole, Type TTI
North American Straight Blade, Types LI and LLI
J
2.85
[72.5]
F
G
H
B
C
A
D
E
A
0.2
[5.03]
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