110
Class H/K5 and R Fuse Blocks
250 and 600 Volt
SPECIFICATIONS
Voltage Rating: 250 Volts; 600 Volts
Ampere Ratings:0 600 amperes
Approvals: UL Listed (File No. E14721)
CSA Certified (File No. LR73091)
RECOMMENDED FUSES
Class H Blocks
Class R Blocks
250V
600V
250V
600V
NLN
NLS
FLNR
FLSR/FLSR_ID
RLN
RLS
KLNR
KLSR
LLNRK
LLSRK/LLSRK_ID
TLN
IDSR
Class H fuse blocks are for use with Class H/K5 fuses, which
have an interrupting rating of up to 50,000 amperes. When
higher interrupting ratings are required, use Class R fuses
(200,000 A.I.R.) and Class R fuse blocks. Class R fuse blocks
are dimensionally the same as Class H blocks, but incorporate
a rejection feature which allows only Class R fuses to be in-
serted.
FEATURES/BENEFITS
Class H and Class R fuse blocks feature a one-piece fuse clip
design for positive electrical contact and minimum heat rise.
Side barriers provide isolation between poles. Bases on most
blocks are of molded phenolic or thermoplastic, UL rated at
150 C.
Class R 600V
Maximum
Wire Size
Amp
Rating
No. of
Poles
Catalog
Number
Screw
Pressure
Plate
Box
Lug
Connector Type
(Add suffix shown)
1
LR60030-1
SR
PR CR
S & P = #10 CU
30
2
LR60030-2
SR
PR CR
C = #6 CU-AL
3
LR60030-3
SR
PR
CR
1
LR60060-1
CR
S = #10 CU
60
2
LR60060-2
CR
C = #2 CU-AL
3
LR60060-3
CR
1
LR60100-1
C
100
2
LR60100-2
C
#2/0 CU-AL
3
LR60100-3
C
1
LR60200-1
C
200
3
LR60200-3
C
250 MCM CU-AL
1
LR60400-1
CR
400
3
LR60400-3
CR
(2) 350 MCM CU-AL
1
LR60600-1
C
600
3
LR60600-3
C
(2) 500 MCM CU-AL
Note: Reinforcing springs standard on all Class R fuse blocks.
Class R 250V
Maximum
Wire Size
Amp
Rating
No. of
Poles
Catalog
Number
Screw
Pressure
Plate
Box
Lug
Connector Type
(Add suffix shown)
1
LR25030-1
SR
PR CR S & P = #10 CU
30
2
LR25030-2
SR
PR
CR
C = #6 CU-AL
3
LR25030-3
SR
PR CR
1
LR25060-1
CR
S = #10 CU
60
2
LR25060-2
CR
C = #2 CU-AL
3
LR25060-3
CR
1
LR25100-1
C
100
2
LR25100-2
C
#2/0 CU-AL
3
LR25100-3
C
1
LR25200-1
C
200
3
LR25200-3
C
250 MCM CU-AL
1
LR25400-1
CR
400
3
LR25400-3
CR
(2) 350 MCM CU-AL
1
LR25600-1
C
600
3
LR25600-3
C
(2) 500 MCM CU-AL
Note: Reinforcing springs standard on all Class R fuse blocks.
Class H 600V
1
LH25030-1
S (R)
P (R)
C (R)
S & P = #10 CU
30
2
LH25030-2
S (R)
P (R)
C (R)
C = #6 CU-AL
3
LH25030-3
S (R)
P (R)
C (R)
1
LH25060-1
S (R)
C (R)
S = #10 CU
60
2
LH25060-2
S (R)
C (R)
C = #2 CU-AL
3
LH25060-3
S (R)
C (R)
1
LH25100-1
C
100
2
LH25100-2
C
#2/0 CU-AL
3
LH25100-3
C
1
LH25200-1
C
200
3
LH25200-3
C
250 MCM CU-AL
1
LH25400-1
CR
400
3
LH25400-3
CR
(2) 350 MCM CU-AL
1
LH25600-1
C
600
3
LH25600-3
C
(2) 500 MCM CU-AL
Note: Reinforcing springs standard on all Class H fuse
blocks 100 amperes and above.
Maximum
Wire Size
Amp
Rating
No. of
Poles
Catalog
Number
Screw
Pressure
Plate
Box
Lug
Connector Type
(Add suffix shown)
Maximum
Wire Size
Amp
Rating
No. of
Poles
Catalog
Number
Screw
Pressure
Plate
Box
Lug
Connector Type
(Add suffix shown)
1
LH60030-1
S (R)
P (R)
C (R)
S & P = #10 CU
30
2
LH60030-2
S (R)
P (R)
C (R)
C = #6 CU-AL
3
LH60030-3
S (R)
P (R)
C (R)
1
LH60060-1
C (R)
S = #10 CU
60
2
LH60060-2
C (R)
C = #2 CU-AL
3
LH60060-3
C (R)
1
LH60100-1
C
100
2
LH60100-2
C
#2/0 CU-AL
3
LH60100-3
C
1
LH60200-1
C
200
3
LH60200-3
C
250 MCM CU-AL
1
LH60400-1
CR
400
3
LH60400-3
CR
(2) 350 MCM CU-AL
1
LH60600-1
C
600
3
LH60600-3
C
(2) 500 MCM CU-AL
Note: Reinforcing springs standard on all Class H fuse blocks
100 amperes and above.
Class H 250V
.28 (7.1) THRU
.53 (13.5) C'BORE x .60 (15.2) DP
6.13
.61
.63
1.56
TYP.
1.56
TYP. FUSE q
2.37
1.88
.187 HEX
SOCKET
3 POLE
2 POLE
1 POLE
STRIP
GAUGE
STRIP
GAUGE
STRIP
GAUGE
STRIP
GAUGE
3.49
[88.6]
1.93
[49.0]
5.05
[128.3]
2.44
[62.0]
111
Class H/K5 and R Fuse Blocks
250 Volt
3.00"
[76.2]
.50"
[13]
1.25"
[31.8]
.22/5.6 DIA. HOLE THRU
4 PLACES
.75"
[19]
1.25"
[31.7]
1.12"
[28.4]
1.91"
[48.5]
2.95"
[74.9]
2.50"
[63.5]
.22"
[5.7]
.33"
[8.4]
.19"
[4.8]
1.38"
[35.1]
.53"
[13]
1.50"
[38.1]
1.50"
[38.1]
1 POLE
2 POLE
3 POLE
2.01"
[51.1]
.74"
[19]
4.23"
[108]
.50"
[12.7]
.49
[12]
1.33"
[33.7]
4.83"
[122.7]
1.33"
[33.7]
1.24"
[31.5]
1.79"
[45.6]
2.86"
[72.7]
.50"
[12.7]
.49"
[12]
4.83"
[122.7]
1.33"
[33.7]
1.24"
[31.5]
1.79"
[45.6]
1.48"
[37.6]
.50"
[12.7]
4.83"
[122.7]
.49"
[12]
1.24"
[31.5]
1.79"
[45.6]
.218/[5.54] DIA.
C'BORE .400/[10.16] DIA. X .63[16] DP
1 POLE
2 POLE
3 POLE
250V 30A
250V 60A
250V 100A
8.13
.87
.61
1.81
TYP.
4.26
1.93
3 POLE
.187 HEX
SOCKET
.28 (7.1) DIA. THRU
.59 (14.9) C'BORE x .64 (16.2) DP.
TYP.
2 POLE
1 POLE
2.10
[53.3]
3.91
[99.3]
5.73
[145.5]
2.60
[66.0]
STRIP
GAUGE
STRIP
GAUGE
STRIP
GAUGE
STRIP
GAUGE
113
Class H/K5 and R Fuse Blocks
600 Volt
6.25"
[159]
6.25"
[159]
6.25"
[159]
1.69"
[42.9]
1.63"
[41.4]
2.94"
[74.7]
4.25"
[108]
3.13"
[79.2]
.62"
[16]
1.56"
[39.6]
3.13"
[79.4]
3.13"
[79.4]
3.13"
[79.4]
.34"
[8.7]
.31"
[7.9]
.38"
[97]
.25"
[6.5]
.69"
[18]
.265" [6.7] DIA. THRU
.05" [12.7] C'BORE
x .44 [11.2] DP.
1 POLE
2 POLE
3 POLE
3.51"
[89.2]
.77"
[19.6]
.27"
[6.8]
.66"
[19.6]
.
62"
[15.7]
3.12"
[79.2]
6.75"
[171.4]
1.95"
[49.5]
.281" D
.
[7.1]
.50" D.
[12.7]
1.81"
[46]
1.29"
[32.8]
1.56"
[39.6]
1.56"
[39.6]
5.08"
[1.29]
3.12"
[79.2]
3.12"
[79.2]
2.12"
[53.8]
1 POLE
2 POLE
3 POLE
600V 30A
600V 60A
600V 100A
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