Hypertherm Powermax45 XP - Connect to electrical power

Installation and Setup
1
Powermax45 XP Operator Manual 809240 27
Connect to electrical power
Use the Hypertherm input current ratings to determine conductor sizes for power connection and
installation instructions. The Hypertherm ratings are designated HYP on the data plate on the
bottom of the power supply. Use the higher HYP input current value for installation purposes. See
page 172 for a sample data plate.
The maximum output voltage varies based on input voltage and the circuit’s amperage. Because the
current draw varies during startup, time-delay fuses are recommended. See Voltage configurations
on page 28. Time-delay fuses can withstand currents up to 10 times the rated value for short
periods of time.
Install a line-disconnect switch
 Use a line-disconnect switch for
each plasma power supply to
allow the operator to turn off the
incoming power quickly in an
emergency.
 Place the switch so that it is
easily accessible to the operator.
Installation must be performed by
a licensed electrician according
to national and local codes.
 The interrupt level of the switch
must equal or exceed the
continuous rating of the
fuses/breakers.
 The switch should also:
 Isolate the electrical
equipment and disconnect all
live conductors from the
incoming supply voltage when in the OFF position.
 Have one OFF and one ON position that are clearly marked with O (OFF) and I (ON).
 Have an external operating handle that can be locked in the OFF position.
 Contain a power-operated mechanism that serves as an emergency stop.
 Have appropriate slow-blow fuses installed. See Voltage configurations on page 28 for
recommended fuse/breaker sizes.
CAUTION
Protect the circuit with appropriately sized time-delay fuses and a line-disconnect switch.
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