Littelfuse LFT Series - Manual

POWR-GARD ® Blocks and Holders Datasheet
Littelfuse.com 1 of 5 © 2013 Littelfuse POWR-GARD ® Products
Rev: 011513
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
ra
Ting
ordering number
Torque
Wire
range
Wire
Type
ba
Se Temp ra
Ting
din
rai
L
moun
T
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)
2.8 N-m (25 in-lbs)
2-4 AWG
6-14 AWG
† see
note
Solid/Stranded
125˚C •
LFT60030FBC
60 LFT60060 1 2 3 C — —
5.6 N-m (50 in-lbs)
2.8 N-m (25 in-lbs)
2-4 AWG
6-14 AWG
CU-AL
LFT60060FBC
100 LFT60100 1 — 3 CS — —
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
10-14 AWG
130˚C —
LT60100FBC
200 LFT60200 1 — 3 CS — — 31.1 N-m (275 in-lbs) 250 kcmil-6 LT60200FBC
400 LFT60400 1 — 3 CS — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 LT60400FBC
600 LFT60600 1 — 3 CS — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 LT60600FBC
Ordering Information (Class T 300 V)
amp
ra
Ting
ordering number
Torque
Wire
range
Wire
Type
ba
Se Temp ra
Ting
din
rai
L
moun
T
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)
2.8 N-m (25 in-lbs)
2-4 AWG
6-14 AWG
CU-AL
Solid/Stranded
125˚C •
LFT30030FBC
60 LFT30060 1 2 3 C — —
5.6 N-m (50 in-lbs)
2.8 N-m (25 in-lbs)
2-4 AWG
6-14 AWG
LFT30060FBC
100 LFT30100 1 — 3 CS — —
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
10-14 AWG
130˚C —
LFT30100FBC
200 LFT30200 1 — 3 CS — — 31.1 N-m (275 in-lbs) 250 kcmil-6 —
400 LFT30400 1 — 3 CS — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 —
600 LFT30600 1 — 3 CS — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 —