Littelfuse LFCL Series - Manual

POWR-GARD ® Fuse Datasheet
© 2013 Littelfuse POWR-GARD ® Products Littelfuse.com
Rev: 012313
1 of 1
Cable limiters
600 VAC
LFCL - 500 - C - 1
Terminal Material
Littelfuse
Cable Limiter
Type of
Termination
Conductor Size
(Aluminum or Copper)
DesCription Catalog number
type termination Cable size
Cable type
Cop per aluminum
1
CAbLe tO CAbLe
4/0 LFCL4/0C1 LFCL4/0A1
250MCM LFCL250C1 LFCL250A1
350MCM LFCL350C1 LFCL350A1
500MCM LFCL500C1 LFCL500A1
750MCM LFCL750C1 LFCL750A1
3
CAbLe tO
OFFset bus
4/0 LFCL4/0C3 LFCL4/0A3
250MCM LFCL250C3 LFCL250A3
350MCM LFCL350C3 LFCL350A3
500MCM LFCL500C3 LFCL500A3
750MCM LFCL750C3 LFCL750A3
5
stRAiGht bus
tO OFFset bus
4/0 LFCL4/0C5 —
250MCM LFCL250C5 —
350MCM LFCL350C5 —
500MCM LFCL500C5 —
750MCM LFCL750C5 —
6
MOLe tO CAbLe
4/0 LFCL4/0C6 LFCL4/0A6
250MCM LFCL250C6 LFCL250A6
350MCM LFCL350C6 LFCL350A6
500MCM LFCL500C6 LFCL500A6
750MCM LFCL750C6 LFCL750A6
8
MOLe tO
OFFset bus
4/0 LFCL4/0C8 —
250MCM LFCL250C8 —
350MCM LFCL350C8 —
500MCM LFCL500C8 —
750MCM LFCL750C8 —
Note: For Type 5 and Type 8 Aluminum cable limiters, use the Copper Type C5 and C8.
Description
Cable limiters are fusible devices that provide very fast
short-circuit protection, primarily to faulted cables, but also to
other conductors such as busway. Cable limiters do not have
an ampere rating, and cannot be used to provide overload
protection. They are instead selected by cable size; for example,
a 500 kcmil cable requires a 500 kcmil cable limiter. Their
main use is to isolate faulted cables in circuits con tain ing
three or more parallel conductors per phase. They may be
installed on the line side of the main service to provide short-
circuit protection to the service conductors. This is especially
important when service conductors are tapped from large low
voltage networks or from large low impedance transformers.
Cable limiters have terminals which permit them to be installed
in a variety of equipment. The most common configuration is
the offset blade on one end and the crimp terminal on the other
end. This permits the limiter to replace a cable terminal (lug).
Applications
• Service entrance conductors
• Between transformer or network bus and busway
terminal boxes
• Large feeders with three or more conductors per phase
Features
• Current-limiting characteristics provide pro tec tion to
conductor insulation and reduce damage when faults occur.
• Properly applied cable limiters may permit the use of
equip ment with reduced withstand ratings
• Wide variety of terminations and cable ratings permit use
in almost every situation.
Specifications
Voltage Ratings 600 VAC
Interrupting Rating 200 kA
Cable Size Range 4/0 – 75MCM Copper or Aluminum
Note: For Type 5 and Type 8 Aluminum cable limiters, use the Copper Type C5 and C8.
Ordering Information
Web Resources
For additional information, see website:
www.littelfuse.com/lfcl