INSTALLATION
3-4 HySpeed HT2000LHF Instruction Manual
6
Noise levels
This plasma system may produce noise that is harmful to the operator or to those close to the cutting table. See
Noise Protection in the Safety section.
Power Requirements
All switches, slow-blow fuses and power cables are customer supplied and must be chosen as outlined by
applicable national and/or local electrical codes. Installation must be performed by qualified personnel.
Use a separate primary line disconnect switch for the power supply.
Rated Input
Input Current @ Recommended Recommended
Voltage Phase 30 kw Output Slow-Blow Fuse Size Cable Size (AWG)
200 VAC 3 108 amps 150 amps 1
208 VAC 3 104 amps 150 amps 1
240 VAC 3 90 amps 150 amps 1
400 VAC 3 56 amps 80 amps 4
440 VAC 3 49 amps 70 amps 6
480 VAC 3 45 amps 60 amps 6
600 VAC 3 36 amps 50 amps 8
Line Disconnect Switch
The line disconnect switch serves as the supply voltage disconnecting (isolating) device. Install this switch on a
wall near the power supply for easy accessibility by the operator. The line disconnect switch must be installed
by qualified personnel following all applicable local and national 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 “0” (OFF) and “1” (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)
Caution: All accessory modules in the system must be grounded to earth. Use a minimum
of 8 AWG wire connected from the stud on the side of each module enclosure to
the worktable ground.
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