power supply setup
powermax
45
Service Manual 2-3
Position the power supply
Locate the Powermax45 near an appropriate 200–240volt power receptacle for CSA or CE 1-phase power supplies,
a 400volt receptacle for 3-phase CE power supplies, or a 480volt receptacle for 3-phase CSA power supplies. The
Powermax45 has a 3m (10-foot) power cord. Allow at least 0.25m (10inches) of space around the power supply for
proper ventilation.
Prepare the electrical power
The maximum output voltage will vary based on your input voltage and the circuit’s amperage. Because the current
draw varies during startup, slow-blow fuses are recommended as shown in the following chart. Slow-blow fuses can
withstand currents up to 10times the rated value for short periods of time.
Voltage configurations
The following chart shows the maximum rated output for typical combinations of input voltage and amperage.
Acceptable input voltages can be ±10% of the values given below.
CAUTION
Protect the circuit with appropriately sized time-delay (slow-blow) fuses and a line-disconnect
switch.
Model Input voltage Phase Rated output
Input
current at
6kw output
Input
current
during arc
stretch
Recommended
slow-blow fuse
size
CSA
200–240 VAC 1 45 A, 132V 34–28A 55–45A 50 A
208VAC 1 45 A, 132V 33 A 54.5 A 50 A
480VAC 3 45 A, 132V 8.5A 12A 15 or 20*A
CE
200–240 VAC 1 45 A, 132V 34–28A 55–45A 35 or 50*A
400VAC 3 45 A, 132V 10 A 15.5 A 15 or 20*A
CE/CCC
220VAC 1 45 A, 132V 31 A 53 A 35 or 50*A
380VAC 3 45 A, 132V 11 A 14 A 15 A
* Use the higher amperage fuse for applications that require a long arc stretch.