131
Semiconductor Fuse Blocks
Modular-designed Semiconductor fuse blocks are designed to
accommodate a wide range of Semiconductor fuses, with a
maximum diameter of 3". This modular design greatly
reduces inventory requirements. They are sold in pairs and
are constructed of molded phenolic, with plated steel studs.
LSCR002
Semiconductor fuse block selection guide
LSCR001
Semiconductor fuse block selection guide
Fuse Series
Ampere Rating
L15S
70 400
L25S
35
60
L25S
70 200
L50S
35
60
L50S
70 100
L50S
125 200
L60S
35
60
L60S
70 100
L60S
125 200
L70S
35
60
L70S
70 100
KLC
1
30
KLC
35
60
Fuse Series
Ampere Rating
L15S
500 800
L25S
225
700
L25S
800
L50S
225
400
L50S
450
600
L50S
700
800
L60S
225
400
L60S
450
600
L60S
700
800
L70S
125
200
L70S
225
400
L70S
450
800
KLC
70
100
KLC
125
200
KLC
225
400
KLC
450
800
SPECIFICATIONS
Voltage rating: LSCR001: Accepts fuses 1" diameter or
less at 600V. Also accepts
13
/
16
"
diameter fuses at 700 -- 1000V.
LSCR002: Accepts fuses up to 3" diameter
at 1000V.
Ampere ratings: LSCR001: 1 400 ampere capacity.
LSCR002: 70 800 ampere capacity.
Approvals: UL Recognized (File No. E14721)
Stud Size: LSCR001: 1/4 - 20 thread (Torque: 61 In. LBS.)
LSCR002: 3/8 - 16 thread (Torque: 192 In. LBS.)
Base: Molded phenolic. 150 C temperature rating.
Terminal construction: Plated steel. Supplied with nut and
belleville washer.
RECOMMENDED FUSES
Semiconductor fuses. See tables below.
LSCR001
LSCR002
1.88"
1.30"
.70"
.70"
.203"X.30" SLOT
.50"
1/4-20"X1.00"
USABLE LENGTH
2.38"
1.34"
.25"
LSCR001
2.13"
1.60"
1.00"
1.00"
.75"
.50"
.203" X .30" SLOT
3/8-16"X1.00"
USABLE LENGTH
.25"
.50"
3.44"
2.44"
LSCR0022
132
Semiconductor Fuse Blocks
SPECIFICATIONS
Voltage Rating: 600 Volts
Ampere Range: 1 600 amperes
Approvals: UL Recognized under the components program
Insulator Base: 150 C general purpose phenolic
Box Lug Terminal: Tin plated aluminum
ORDERING INFORMATION
Littelfuse's 1LS series modular style semiconductor fuse
blocks accommodate a wide range of semiconductor fuses.
Blocks are provided in pairs with fuse mounting hardware.
I
2-piece modular design
I
General purpose phenolic base
I
Tin plated aluminum box lugs
I
Dove-tailed interlocking feature (1LS101 only)
I
Hex-head bolts and Belleville washers provided
DIMENSIONS
Littelfuse
Ampere
Wire
Torque Approvals
Catalog No. Rating
Range
Rating
1LS101
100A
#2/0 - 14 CU/AL
120 IN. LBS. UL Recognized
1LS102
400A
250MCM - #6 CU/AL 275 IN. LBS. UL Recognized
1LS103
400A
250MCM - #6 CU/AL 275 IN. LBS. UL Recognized
1LS104
600A
500MCM - #6 CU/AL 375 IN. LBS. UL Recognized
1LS108
400A
250MCM - #6 CU/AL 275 IN. LBS. Self-Certified
1LS109
400A
250MCM - #6 CU/AL 275 IN. LBS. Self-Certified
1LS110
400A
250MCM - #6 CU/AL 275 IN. LBS. Self-Certified
1LS101
1LS102
Dimensions for reference only.
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