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LFCL750A6 Scheda tecnica(PDF) 1 Page - Littelfuse |
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LFCL750A6 Scheda tecnica(HTML) 1 Page - Littelfuse |
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1 / 1 page 85 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 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). APPLICATIONS Service entrance conductors Between transformer or network bus and busway terminal boxes Large feeders with three or more conductors per phase FEATURES 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. Cable Limiters 600 Volts AC ORDERING INFORMATION LFCL 1 - C - 500 - DESCRIPTION CATALOG NUMBER Type Termination Cable Size Cable Type 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 LFCL4/0C3 LFCL4/0A3 250MCM LFCL250C3 LFCL250A3 3 350MCM LFCL350C3 LFCL350A3 Cable to 500MCM LFCL500C3 LFCL500A3 Offset Bus 750MCM LFCL750C3 LFCL750A3 4/0 LFCL4/0C5 250MCM LFCL250C5 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 4/0 LFCL4/0C8 250MCM LFCL250C8 8 350MCM LFCL350C8 Mole to 500MCM LFCL500C8 Offset Bus 750MCM LFCL750C8 Contact factory for shrink tubing availability. |
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