Cable Limiters
600 Volts AC
SPECIFICATIONS
Voltage Rating:
600 volts AC
Interrupting Rating:
200,000 Amperes
Cable Size Range:
4/0 – 750MCM Copper or Aluminum
Minimum Operating Temperature:
80°C
ORDERING INFORMATION
LFCL - 500 - C - 1
Terminal Material
(Aluminum or Copper)
Type of Termination
LFCL4/0A3
LFCL250A3
LFCL350A3
LFCL500A3
LFCL750A3
LFCL4/0A6
LFCL250A6
LFCL350A6
LFCL500A6
LFCL750A6
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 over-
load protection. Cable limiters are 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
containing 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).
CATALOG NUMBER
Cable Type
Type Termination Cable Size
COPPER
ALUMINUM
4/0
LFCL4/0C1 LFCL4/0A1
250MCM LFCL250C1 LFCL250A1
1
350MCM LFCL350C1 LFCL350A1
Cable to
500MCM LFCL500C1 LFCL500A1
Cable
750MCM LFCL750C1 LFCL750A1
4/0
250MCM
350MCM
500MCM
750MCM
LFCL4/0C3
LFCL250C3
LFCL350C3
LFCL500C3
LFCL750C3
LFCL4/0C5
LFCL250C5
LFCL350C5
LFCL500C5
LFCL750C5
LFCL4/0C6
LFCL250C6
LFCL350C6
LFCL500C6
LFCL750C6
LFCL4/0C8
LFCL250C8
LFCL350C8
LFCL500C8
LFCL750C8
DESCRIPTION
3
Cable to
Offset Bus
5
4/0
250MCM
Straight Bus 350MCM
to
500MCM
Offset Bus 750MCM
4/0
250MCM
350MCM
500MCM
750MCM
4/0
250MCM
350MCM
500MCM
750MCM
6
Mole to
Cable
APPLICATIONS
Service entrance conductors
Between transformer or network bus and busway
terminal boxes
Large feeders with three or more conductors per phase
8
Mole to
Offset Bus
FEATURES
I
I
I
Current-limiting characteristics provide protection to
conductor insulation and reduce damage when faults occur.
Properly applied cable limiters may permit the use of
equipment with reduced withstand ratings
Wide variety of terminations and cable ratings permit use
in almost every situation.
106
Conductor Size
Littelfuse
Cable Limiter
微控制器 MCU
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