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POWR-GARD

Blocks and Holders Datasheet

littelfuse.com/lft

1 of 5

Products

Rev: 4-A-012516

LF SERIES CLASS T FUSE BLOCKS

300 V • 600 V

Speciﬁcations

Voltage Ratings 300 VAC/600 VAC

Ampere Ratings 0 – 600 A

Leakage Current <0.6 mA at 600 V

Withstand Rating 200 kA RMS SYM

Flammability Rating UL94 V-0

Approvals UL Listed (File: E14721)

CSA Certiﬁed (File: LR7316)

Environmental RoHS Compliant, Lead (Pb) Free

Recommended Fuses

300 V JLLN

600 V JLLS

Web Resources

Sample requests, downloadable CAD drawings and other

technical information:

littelfuse.com/lft

littelfuse.com/fuseblocks

Description

The Littelfuse Class T fuse blocks offer many advantages

such as space saving design, universal mounting holes,

snap-to-release DIN rail mounts and available covers.

Features/Beneﬁts

• Space-saving design

• Universal mounting holes for easy replacement

• One hand release from DIN rail for 30–60 A fuses

• Reinforced fuse clips are standard

• Covers available for most amperages to enhance safety

* Covers sold individually. One cover needed for each pole.

†

Wire Type for Pressure Plate and Screw Terminal is CU only

Ordering Information

(Class T 600 V)

AMP

RATING

ORDERING NUMBER

TORQUE

WIRE

RANGE

WIRE

TYPE

BASE TEMP

RATING

DIN RAIL

MOUNT

COVER

ORDERING

NUMBER*

BASE

ORDERING

NUMBER

POLES TERMINAL SUFFIX

1 2 3

BOX

LUG

PRES SURE

PLATE

SCREW

30 LFT60030 1 2 3 C P S

5.6 N-m (50 in-lbs) 2-4 AWG

†

see

note

Solid/Stranded

125˚C • LFT60030FBC

2.8 N-m (25 in-lbs) 6-14 AWG

60 LFT60060 1 2 3 C — —

5.6 N-m (50 in-lbs) 2-4 AWG

CU-AL

125˚C • LFT60060FBC

2.8 N-m (25 in-lbs) 6-14 AWG

100 LFT60100 1 — 3 CS — —

13.6 N-m (120 in-lbs) 2/0-6 AWG

130˚C — LT60100FBC4.5 N-m (40 in-lbs) 8 AWG

4.0 N-m (35 in-lbs) 10-14 AWG

200 LFT60200 1 — 3 CS — — 31.1 N-m (275 in-lbs) 250 kcmil-6 130˚C — LT60200FBC

400 LFT60400 1 — 3 CS — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 130˚C — LT60400FBC

600 LFT60600 1 — 3 CS — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 130˚C — LT60600FBC

Ordering Information

(Class T 300 V)

AMP

RATING

ORDERING NUMBER

TORQUE

WIRE

RANGE

WIRE

TYPE

BASE TEMP

RATING

DIN RAIL

MOUNT

COVER

ORDERING

NUMBER*

BASE

ORDERING

NUMBER

POLES TERMINAL SUFFIX

1 2 3

BOX

LUG

PRES SURE

PLATE

SCREW

30 LFT30030 1 2 3 C — —

5.6 N-m (50 in-lbs) 2-4 AWG

CU-AL

Solid/Stranded

125˚C • LFT30030FBC

2.8 N-m (25 in-lbs) 6-14 AWG

60 LFT30060 1 2 3 C — —

5.6 N-m (50 in-lbs) 2-4 AWG

125˚C • LFT30060FBC

2.8 N-m (25 in-lbs) 6-14 AWG

100 LFT30100 1 — 3 CS — —

13.6 N-m (120 in-lbs) 2/0-6 AWG

130˚C

—

LFT30100FBC4.5 N-m (40 in-lbs) 8 AWG

4.0 N-m (35 in-lbs) 10-14 AWG

200 LFT30200 1 — 3 CS — — 31.1 N-m (275 in-lbs) 250 kcmil-6 130˚C

—

400 LFT30400 1 — 3 CS — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 130˚C

—

600 LFT30600 1 — 3 CS — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 130˚C

—

Summary of content (5 pages)

PAGE 1
POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS 300 V • 600 V Specifications Voltage Ratings Ampere Ratings Leakage Current Withstand Rating Flammability Rating Approvals Environmental Description Recommended Fuses The Littelfuse Class T fuse blocks offer many advantages such as space saving design, universal mounting holes, snap-to-release DIN rail mounts and available covers. 300 V JLLN 600 V JLLS Web Resources Features/Benefits • • • • • 300 VAC/600 VAC 0 – 600 A <0.
PAGE 2
POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 300 V 30 A 21.8 [.86] 15.0 [.59] 59.9 [2.36] 40.9 [1.61] 6.9 [.27] 35.6 [1.40] 44.9 [1.77] 25.9 [1.02] 35.6 [1.40] Ø4.5 [.18] TYP. 71.1 [2.80] 3.7 [.15] 300 V 60 A 46.9 [1.85] 24.6 [.97] 16.4 [.65] 30.5 [1.20] 8.2 [.32] 41.9 [1.65] 69.1 [2.72] 52.7 [2.07] 36.8 [1.45] Ø4.5 [.18] TYP. 73.7 [2.90] 4.5 [.18] 300 V 100 A 34.8 [1.37] 104.6 [4.12] 26.9 [1.06] 17.4 [.69] 26.0 [1.03] 17.4 [.69] 7.
PAGE 3
POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 38.1 [1.50] 19.1 [.75] 300 V 200 A Ø.3 THRU Ø.5 .5 9.5 [.38] 114.3 [4.50] 92.1 [3.63] 22.2 [.88] 9.5 [.38] 57.2 [2.25] 15.9 [.63] 88.9 [3.50] R3.6 [.14] TYP. 168.3 [6.63] 177.8 [7.00] 28.6 [1.13] 12.7 [.50] 300 V 400 A 171.5 [6.75] 127.0 [5.00] 57.2 [2.25] 9.5 [.38] 103.1 [4.06] 60.6 [2.38] 85.7 [3.38] Ø.3 THRU Ø.5 .5 15.9 [.63] Ø.3 THRU Ø.6 .5 206.2 [8.12] 300 V 600 A 209.6 [8.25] 9.5 [.
PAGE 4
POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 600 V 30 A 24.6 [.97] 17.0 [.67] 46.9 [1.85] 69.1 [2.72] 29.8 [1.17] 7.6 [.30] 41.9 [1.65] 52.0 [2.05] 44.8 [1.77] R2.9 [.11] TYP. 89.7 [3.53] 600 V 60 A 39.9 [1.57] 9.5 [.38] 54.0 [2.13] 112.3 [4.42] 76.1 [3.00] 81.9 [3.23] 45.7 [1.80] 36.2 [1.42] 72.3 [2.85] 3.7 [.15] 600 V 100 A 34.8 [1.37] 17.5 [.69] 7.9 [.31] 9.5 [.38] 77.0 [3.03] 26.0 [1.03] Ø.2 THRU 7.9 [.31] Ø.4 .5 42.8 [1.69] 104.
PAGE 5
POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 38.1 [1.50] 600 V 200 A 114.3 [4.50] 19.1 [.75] 19.1 [.75] 57.2 [2.25] 15.9 [.63] Ø.3 THRU 9.5 [.38] Ø.5 .5 9.5 [.38] 98.4 [3.88] Ø.3 THRU Ø.6 .5 196.9 [7.75] 57.2 [2.25] 600 V 400 A 44.5 [1.75] 171.5 [6.75] 28.6 [1.13] 127.0 [5.00] 12.7 [.50] Ø.3 THRU Ø.5 .5 9.5 [.38] 60.3 [2.38] 85.7 [3.38] 15.9 [.63] 114.3 [4.50] Ø.3 THRU Ø.6 .5 228.6 [9.00] 600 V 600 A 209.6 [8.25] 149.2 [5.88] 69.