OM-154 501 Page 6
2-2. Duty Cycle And Overheating
rduty1 5/95
−
sb-150 215
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y
Exceeding duty cycle can
damage unit and void
warranty.
60% Duty Cycle At 200 Amperes
6 Minutes Welding
4 Minutes Resting
UNIT
GUN
6 minutes Welding
4 minutes Resting
GUN
6 minutes Welding
4 minutes Resting
60% Duty Cycle At 200 Amperes Using CO
2
60% Duty Cycle At 180 Amperes Using Mixed Gas
SECTION 3
−
INSTALLATION
3-1. Installing Work Clamp
1
Work Cable
2
Boot
Slide boot onto work cable. Route
cable out front panel opening from
inside.
3
Negative (
−
) Output Terminal
Connect cable to terminal and
cover connection with boot.
4
Hardware
5
Work Clamp
Route cable through clamp handle
and secure as shown.
Close door.
Ref. ST-800 918-B
Tools Needed:
1/2, 3/4 in
1
2
4
5
3
