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The MAGNUM® PRO 250, 350, 450 & 550 Amp and
cable assemblies have been designed to meet specifi-
cation for welding with steel electrode using the GMAW
(gas metal arc welding) and gas-shielded FCAW (flux-
cored arc welding) processes.
Most models of MAGNUM® PRO 250, 350, 450 & 550
Amp guns are not factory equipped with a feeder end
connector. With the K466-1 MAGNUM® Connector Kit,
they can be used with any Lincoln LN-7 or LN-25 semi-
automatic wire feeder. The K466-1 should also be used
with the LN-8 or LN-9 when feeding .052 and smaller
electrodes. An optional K481 MAGNUM® Fast-
Connect Gas Tube Kit is available to provide tool-less
gas tube connection to Lincoln wire feeders. Non-GMA
model wire feeders require an optional gas solenoid
valve.
The 250, 350, 450 AND 550 guns can also be used
with any wire feeder equipped with a Tweco® #1, 2, 3,
350 or 4 wire feed adapter kit by using the K466-2
MAGNUM
®
Connector Kit.
With the K466-3 or K466-4 MAGNUM
®
connector kits,
it is possible to connect MAGNUM® PRO 250, 350,
450 & 550 Amp guns directly to a variety of Miller and
Hobart wire feeders, respectively.
The K466-5 connector kit allows connection of MAG-
NUM® PRO 250, 350, 450 & 550 Amp guns to an L Tec
feeder connector assembly. L-Tec feeders require a
feeder connector assembly (similar to a Tweco®
adapter) in order to connect to a gun and cable. The
K466-5 contains a brass connector to permit MAG-
NUM
®
guns to be connected to this feeder connector
assembly.
The K466-6 connector kit allows connection of MAG-
NUM® PRO 250, 350, 450 & 550 Amp guns to a
Lincoln Wirematic.
The K466-7 connector kit allows connection of MAG-
NUM® PRO 250, 350, 450 & 550 Amp guns to Hobart
Series 2000 Wire Feeders.
The K466-8 connector kit allows connection of MAG-
NUM® PRO 250, 350, 450 & 550 Amp guns to an LN8
or LN9 when 1/16 and larger electrode is used.
The K466-9 connector kit allows connection of K497 to
SP100T and related wire feeders.
The K466-10 connector kit allows connection of MAG-
NUM® PRO 250, 350, 450 & 550 Amp guns to a 10
Series wire feeder. For best results when welding mild
and alloy steels, it is recommended that L-50 or L-56
Lincoln solid wire electrodes be used for the GMAW
process and OS70 or OS71 Lincoln Outershield cored
electrodes for the gas-shielded FCAW process.
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