Hypertherm XPR170 - Input Power Requirements for CE Units; Remote On-Off Switch

Qualifications and Requirements
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XPR170 Instruction Manual 810060 45
Input power requirements for CE units
The XPR cutting system complies with IEC 6100-3-11 and IEC 61000-3-12, provided that the
short-circuit power (Ssc) between the supply and the public system for the installation site is
greater than (or equal to) 6.79 MVA. The installer or user is responsible for verifying that the
short-circuit power (Ssc) for the installation site satisfies this requirement.
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If necessary, you can consult with the distribution network operator for
your site to verify the short-circuit power Ssc for your site.
The XPR cutting system is intended for use only in sites that have a service current capacity that is
greater than (or equal to) 100 A per phase and supplied from a distribution network that has a
nominal voltage of 400/230 V. The installer or user is responsible for verifying that the service
current capacity for the installation site satisfies this requirement.
Remote on-off switch
You must supply the remote on-off switch (or switches) for your cutting system.
WARNING
ELECTRIC SHOCK CAN KILL
The plasma power supply contains dangerous electric voltages that can seriously injure or
kill you.
Even if the plasma power supply is turned OFF, you can still get a serious electric
shock if the plasma power supply remains connected to an electric power source. When
the remote on-off switch is in the OFF position, electric power remains active to the
following components in the system:
• Control board
• Control transformer input and output
• 48 V power supply
• 24 V power supply
• 120 VAC and 220 VAC on the power distribution board
• Input side of the contactors
• Input side of the pump relay
• Power-indicator LED on the front of the plasma power supply
Use extreme caution if you do diagnosis or maintenance tasks when the plasma power
supply remains connected to an electric power source and the outer cover or panels are
removed. All work that requires removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
Refer to the Safety and Compliance Manual (80669C) for more safety information