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600 Volts AC
Voltage Rating: 600 volts AC
Interrupting Rating: 200,000 Amperes
Cable Size Range: 4/0 – 750MCM Copper or Aluminum
Minimum Operating Temperature: 80°C
LFCL - 500 - C - 1
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
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).
Service entrance conductors
Between transformer or network bus and busway
Large feeders with three or more conductors per phase
s Current-limiting characteristics provide protection to
conductor insulation and reduce damage when faults occur.
s Properly applied cable limiters may permit the use of
equipment with reduced withstand ratings
s Wide variety of terminations and cable ratings permit use
in almost every situation.
Type Termination Cable Size
4/0 LFCL4/0C1 LFCL4/0A1
250MCM LFCL250C1 LFCL250A1
1 350MCM LFCL350C1 LFCL350A1
Cable to 500MCM LFCL500C1 LFCL500A1
Cable 750MCM LFCL750C1 LFCL750A1
4/0 LFCL4/0C3 LFCL4/0A3
250MCM LFCL250C3 LFCL250A3
3 350MCM LFCL350C3 LFCL350A3
Cable to 500MCM LFCL500C3 LFCL500A3
Offset Bus 750MCM LFCL750C3 LFCL750A3
5 Straight Bus 350MCM LFCL350C5
to 500MCM LFCL500C5
Offset Bus 750MCM LFCL750C5
4/0 LFCL4/0C6 LFCL4/0A6
250MCM LFCL250C6 LFCL250A6
6 350MCM LFCL350C6 LFCL350A6
Mole to 500MCM LFCL500C6 LFCL500A6
Cable 750MCM LFCL750C6 LFCL750A6
8 350MCM LFCL350C8
Mole to 500MCM LFCL500C8
Offset Bus 750MCM LFCL750C8
Contact factory for shrink tubing availability.
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