Filter
Top Products
Simple
• Easy installation with 10 ft. (3 m) work clip lead and
user preference quick-connect “pig-tails” for input
and electrode weld cables.
• Easy setup with only a few intuitive welding controls
and lit displays. This includes a single Power/Mode
switch with Input level light, and a single presettable
Output Control with separate digital meters for Amps
and Volts, featuring post-weld five second memory
display.
• Easy Service with quick-to-replace cable “pig-tails”
and “plug-in” assembly modules, including accessi-
ble PC boards and interchangeable “plug-n-play”
panel instruments.
Robust
• Capacity is rated for continuous operation at 350
amps in 50°C (122°F) ambient temperature, and can
be paralleled to multiply CC mode output rating.
• Overload protection is provided with electronic limit-
ing of output current, and with thermostat and over-
voltage shutdown protection that automatically reset.
• Outdoor operation protected with sealed control and
power electronics compartments, with sealed inter-
connections, housing “potted” circuit boards, and
using “Central-Air” cooling with “Fan-As-Needed” for
less dirt intake.
• Handling (and mishandling protection) is enhanced
with light, but durably designed, aluminum construc-
tion with front to back, top and bottom, handles (also
serving as “roll bar” and skid), and a sheetmetal shell
attached with 1/4" steel threaded fasteners.
RECOMMENDED EQUIPMENT AND
PROCESSES
MULTI-SYSTEM POWER SOURCE
The Multi-Source 40KW, 80VDC buss power source
(K1752-1) is recommended for use in the Multi-Weld
system. However, other DC power sources capable of
supplying the required system buss current, at above
60 volts, may be used. It is recommended that this
power source have lower output inductance (choke)
such as the Lincoln Electric DC-1000, DC-655 or DC-
600 set for maximum output in CC mode. The power
source output VA capacity should be 10% greater than
the sum of the maximum VA of the converter arcs,
which may all be simultaneously welding or gouging:
Power Source (Volts x Amps) capacity > 1.1 x
Sum of Converters’ (Volts x Amps) arcs
DISTRIBUTION BOX
The Multi-Weld Distribution Box (K1736-1) is available
for interconnection of the Multi-System using the same
“pig-tail” connection method provided with the Multi-
Weld 350 converter. Six cable strain-relief ports are
provided for connection of up to (12) cables for distrib-
ution or "daisy-chain" inter-connection to other boxes.
Four “pig-tail” leads (see below) are included with the
Box.
“PIG-TAIL” LEADS AND CONNECTORS
Accessory “pig-tail” leads and Twist-Mate connectors
are available from Lincoln for extra connections to the
Multi-Weld 350 or the Distribution Box:
Order No. Description:
CL012705 22 in.(56 cm) long 2/0 (70 mm
2
) cable
with 0.5 in.(13 mm) hole lug and cut-off
ends.
K852-70 Twist-Mate male insulated plug for
1/0-2/0 (50-70 mm
2
) cable.
K852-95 Twist-Mate male insulated plug for
2/0-3/0 (70-95 mm
2
) cable.
K1759-70 Twist-Mate female insulated receptacle
for 1/0-2/0 (50-70 mm
2
) cable.
K1759-95 Twist-Mate female insulated receptacle
for 2/0-3/0 (70-95 mm
2
) cable.
B-4 B-4
OPERATION
MULTI-WELD 350
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC