Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 95)

InstallatIon
HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3 2-47
Main power cables (fiber laser supply and chiller)
Wire sizes vary based on the distance of the receptacle from the main box. The fiber laser supply must be permanently
connected using rigid or flexible metallic conduit. 10 AWG wire rated for use in conduit is recommended. Installation
must be performed by a licensed electrician.
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. The switch should be fused
for 30 amps, 480 VAC.
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
SWITCH BOX
30 A
10