Installation, Output connections, Paralleling – Lincoln Electric MULTI-SOURCE SVM155-A User Manual

Page 11: Multi-source output limitations, Distribution box, Pig tail” leads and connec- tions

OUTPUT CONNECTIONS

The Multi-Source has two parallel connected output
studs for positive and negative connections. Each one
is rated to carry the full output current. For its maximum
rated current at 100% duty cycle a minimum size of 4/0
AWG welding cable is recommended.

Connection of Electrode and Work Leads to Output
terminals.

1. Set the POWER ON/OFF Toggle Switch to OFF.
2. Raise the hinged cover protecting the output termi-

nals.

3. Insert the electrode lead up through the elliptical

hole in the machine base below the positive output
terminal. Pull through enough cable to reach the out-
put terminal.

4. Connect electrode lead to the terminal .
5. Tighten the output terminal nut with a wrench.
6. Connect the work lead to the negative output termi-

nal following steps 3-5.

7. Lower the cover to protect the output terminals.

PARALLELING

Machines may be paralleled for increased output. The
S20428 paralleling kit permits paralleling of two MULTI-
SOURCE power supplies for supplying currents of up
to 1000 amps, 100% duty cycle.

MULTI-SOURCE OUTPUT LIMITATIONS

The number of Multi-Weld Converters that may be con-
nected to a single Multi-Source Power Source is deter-
mined by the following formula:

Power Source (Volts x Amps) capacity > 1.1 x Sum

of Converters’ (Volts x Amps) arcs

The number of Multi-Weld 350s, the procedures used
and the combined duty cycle of the arcs are only limit-
ed by the 40,000 (36,000 watts on 50Hz) watt rating of
the Multi-Source supply. The machine is IP-23S rated
and is designed for outdoor applications.

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 CONNEC-
TIONS

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

22in. (56cm) long 2/0 (70mm

) cable

with 0.5in. (13mm) hole lug and cut-off
ends.

K852-70

Twist-Mate male insulated plug for 1/0-
2/0 (50-70mm

) cable

K852-95