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3
INSTALLATION
1
Environment
The ARC MASTER 200S is designed for use in
adverse environments.
Examples of environments with increased adverse
conditions are :
a. In locations in which freedom of movement is
restricted, so that the operator is forced to per-
form the work in a cramped (kneeling, sitting or
lying) position with physical contact with con-
ductive parts;
b. In locations which are fully or partially limited
by conductive elements, and in which there is
a high risk of unavoidable or accidental contact
by the operator, or
c. In wet or damp hot locations where humidity or
perspiration considerably reduces the skin
resistance of the human body and the insula-
tion properties of accessories.
Environments with adverse conditions do not
include places where electrically conductive parts
are in the near vicinity of the operator, which can
cause increased hazard, have been insulated.
2
Location
Be sure to locate the welder according to the fol-
lowing guidelines:
In areas, free from moisture and dust.
Ambient temperature between 0 degrees C to
40 degrees C.
In areas, free from oil, steam and corrosive
gases.
In areas, not subjected to abnormal vibration or
shock.
In areas, not exposed to direct sunlight or rain.
Place at a distance of 12" (304.79mm) or more
from walls or similar that could restrict natural
airflow for cooling.
WARNING
Thermal Arc advises that this equipment be electri-
cally connected by a qualified electrician.
3
Electrical Input Connec-
INSTALLATION
tions
WARNING
ELECTRIC SHOCK can kill; SIGNIFICANT DC
VOLTAGE is present after removal of input power.
DO NOT TOUCH live electrical parts.
SHUT DOWN welding power source, disconnect
input power employing lockout/tagging procedures.
Lockout/tagging procedures consist of padlocking
line disconnect.
switch in open position, removing fuses from fuse
box, or shutting off and red-tagging circuit breaker
or other disconnecting device.
4
Electrical Input Require-
ments
Operate the welding power source from a single-
phase 50/60 Hz, AC power supply. The input volt-
age must match one of the electrical input voltages
shown on the input data label on the unit name-
plate. Contact the local electric utility for informa-
tion about the type of electrical service available,
how proper connections should be made, and any
inspection required.
The line disconnect switch provides a safe and
convenient means to completely remove all electri-
cal power from the welding power supply whenever
necessary to inspect or service the unit.
NOTE
This unit is equipped with a 250 VAC (NEMA 6-
50P) plug molded on the two-conductor with earth
power cable that is connected at the welding power
source for single phase electrical input power. For
direct wiring installation have a qualified person
install according to all applicable codes and
instructions.for single and three phase electrical
input power.
Do not connect an input (BROWN or BLUE) con-
ductor to the ground terminal.
Do not connect the ground (GREEN/YELLOW)
conductor to an input line terminal.
3 – 1
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