Hypertherm HPR800XD Auto Gas Rev.2 - Manual (Page 95)

InstallatIon
HPR800XD Auto Gas – 806500 3-55
line disconnect switch
The line disconnect switch serves as the supply-voltage disconnecting (isolating) device. Install
this switch near the power supply for easy access by the operator.
Installation must be performed by a licensed electrician and according to applicable national
and local codes.
The switch should:
• Isolate the electrical equipment and disconnect all live conductors from the supply
voltage when in the “OFF” position
• Have one “OFF” and one “ON” position clearly marked with “O” (OFF) and “l” (ON)
• Have an external operating handle capable of being locked in the “OFF” position
• Contain a power-operated mechanism that serves as an emergency stop
• Have slow-blow fuses installed for the proper breaking capacity (see table above).
SWITCH BOX
Main power cable (chiller)
See the Chiller instruction manual for more information.
Main power cable (power supplies)
Wire sizes vary based on the distance of the receptacle from the main box. The wire sizes listed in the table on the
previous page were taken from the National Electric Code 1990 handbook, table 310.16 (USA). Use a 4-conductor
Type SO input power cable with a conductor temperature rating of 90° C (194° F). Installation must be performed by
a licensed electrician.
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