POWR-GARD® Blocks and Holders Datasheet
LF SERIES CLASS H/K5 AND R FUSE BLOCKS
Ordering Information (Class R 250 V)
ORDERING NUMBER
BASE
TEMP
RATING
COVER
ORDERING
NUMBER *
WIRE
TYPE
BOX LUG
SLOT
TORQUE
WIRE RANGE
BOX LUG
HEX SCREW
PRESSURE
PLATE
SCREW
SCREW
BOX LUG
6–14 AWG
1
2
3
1
—
—
—
LFR250301C
LFR250302C
LFR250303C
LFR250301P LFR250301S
LFR250302P LFR250302S
LFR250303P LFR250303S
—
—
—
PRESSURE PLATE
10–14 AWG
30
2.8 N-m (25 in-lbs)
CU only
125 ˚C
•
LFH25030FBC
SCREW 10–22
AWG
—
—
—
—
—
LFR250601CID
LFR250601C
LFR250602CID
LFR250602C
LFR250603CID
—
—
—
—
—
—
•
—
•
—
•
—
•
—
•
5.6 N-m (50 in-lbs)
2.8 N-m (25 in-lbs)
2–4 AWG
60
CU-AL
125 ˚C
130 ˚C
•
LFH25060FBC
LFH25100FBC
2
3
1
3
6–14 AWG
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LFR250603C
LFR251003CID
LFR251003C
LFR251001CID
LFR251001C
LFR252001C
LFR252003C
LFR254001C
LFR254003C
LFR256001C
LFR256003C
—
—
—
—
—
—
—
—
—
—
13.6 N-m (120 in-lbs)
4.5 N-m (40 in-lbs)
4.0 N-m (35 in-lbs
2/0–6 AWG
8 AWG
100
CU-AL
CU-AL
—
10–14 AWG
—
1
3
1
3
1
3
200
400
600
—
—
—
31.1 N-m (275 in-lbs)
250 kcmil-6
130 ˚C
130 ˚C
130 ˚C
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL
42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL
Note: Reinforcing springs standard on all Class H fuse blocks.
*Covers sold individually. One cover needed for each pole.
Ordering Information (Class R 600 V)
ORDERING NUMBER
BASE
TEMP
RATING
COVER
ORDERING
NUMBER *
WIRE
TYPE
BOX LUG
TORQUE
WIRE RANGE
BOX LUG HEX
SCREW
PRESSURE
PLATE
SLOT
SCREW
SCREW
—
—
—
—
—
—
LFR600301CID LFR600301PID LFR600301SID
LFR600301C LFR600301P LFR600301S
LFR600302CID LFR600302PID LFR600302SID
LFR600302C LFR600302P LFR600302S
LFR600303CID LFR600303PID LFR600303SID
LFR600303C LFR600303P LFR600303S
•
—
•
—
•
BOX LUG
6–14 AWG
1
2
3
PRESSURE PLATE
10–14 AWG
30
2.8 N-m (25 in-lbs)
CU only
130 ˚C
•
LFH60030FBC
SCREW 10–22
AWG
—
LFR600601CID-HX LFR600601CID
—
—
•
1
-
LFR600601C
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
•
—
•
—
•
—
•
2–4 AWG
5.6 N-m (50 in-lbs)
2.8 N-m (25 in-lbs)
LFR600602CID-HX LFR600602CID
60
CU-AL
130 ˚C
130 ˚C
•
LFH60060FBC
LFH60100FBC
2
3
1
3
6–14 AWG
-
LFR600602C
LFR600603CID-HX LFR600603CID
-
LFR600603C
LFR601001CID
LFR601001C
LFR601003CID
LFR601003C
LFR602001C
LFR602003C
LFR604001C
LFR604003C
LFR606001C
LFR606003C
—
—
—
—
—
—
—
—
—
—
13.6 N-m (120 in-lbs)
4.5 N-m (40 in-lbs)
4.0 N-m (35 in-lbs)
2/0–6 AWG
8 AWG
100
CU-AL
CU-AL
—
10–14 AWG
—
1
3
1
3
1
3
200
400
600
—
—
—
31.1 N-m (275 in-lbs)
250 kcmil-6
130 ˚C
130 ˚C
130 ˚C
—
—
—
—
—
—
31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL
42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL
Note: Reinforcing springs standard on all Class H fuse blocks.
*Covers sold individually. One cover needed for each pole.
Littelfuse.com
© 2022 Littelfuse, Inc.
Rev: 081622
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