Tweco Thermal Arc TA 500 - Manual (Page 22)

Installation 2-2 Manual No 0-0470
Input
Strain
Relief
Figure 2-C Power Supply Rear Panel. Input of
Primary Power Cables
Power
Transformer
(T1)
Line
Voltages
Accepted
Fuse or
Circuit
Breaker
Amperages
Recommended
Minimum
Primary Wire
1
230
460 450
225 400 MCM
2/0
2
460
575 225
170 2/0
1
3
220
380 450
250 400 MCM
3/0
Table 2-A Line Voltages, Circuit Protection and
Recommended Wire Size.
NOTE:
This information is based on the 1978 National
Electrical Code, Table 310-16. Larger sizes may
be required if the length exceeds 25 feet.
Ground Lug
Figure 2-D Ground Lug
WARNING
Do Not Turn On Power Until Step 37.
7. On the right-hand side of the power supply
base, about half-way back, are the connection
lugs for the output cables. Feed the two posi-
tive (RED) Work cables, (end with large hole in
lug), through the large plastic bushing on the
lower right hand side of the front panel. Con-
nect the cables to the positive (RED) output con-
nections. The other end of these cables are con-
nected to the work table.
8. Feed the two negative (GREEN) cables, (end
with large hole in lug), through the same plas-
tic bushing as the positive cables. Connect to
the negative (GREEN) output connection in the
Power Supply. The other end of these cables
will be connected to the Supply Console.
9. Replace the side panels and cover.