Hypertherm Powermax 125 Service Manual

Powermax125 Service Manual 808070 165
Section 9
Power Supply Component Replacement
WARNING!
ELECTRIC SHOCK CAN KILL
Turn OFF the power and remove the input power plug from its receptacle before removing
the cover from the power supply. If the power supply is connected directly to a line
disconnect box, switch the line disconnect to OFF (O). In the U.S., use a “lock-out /
tag-out” procedure until the service or maintenance work is complete. In other countries,
follow appropriate national or local safety procedures.
Do not touch live electrical parts! If power is required for servicing, use extreme caution
when working near live electrical circuits. Dangerous voltages exist inside the power
supply that can cause serious injury or death.
Do not attempt to repair the power board or control board. Do not cut away or remove any
protective conformal coating from either board. To do so will risk a short circuit between
the AC input circuit and the output circuit and may result in serious injury or death.
See the Safety and Compliance Manual (80669C) included with your system for more
safety precautions.
CAUTION!
Static electricity can damage circuit boards. Use proper precautions when handling
printed circuit (PC) boards.
Store PC boards in anti-static containers.
Wear a grounded wrist strap when handling PC boards.

Hypertherm Powermax 125 Specifications

General

Output Current	30-125 A
Input Power	15.2 kW
Open Circuit Voltage	300 VDC
Gas Supply	Clean, dry, oil-free air or nitrogen
Input Power Cable Length	10 ft (3 m)
Rated Output Current	125 A
Gas Type	Air or nitrogen
Cutting Capacity	1-1/4 inch (32 mm)
Pierce Capacity	1 inch (25 mm)
Input Voltage	200-600 V, 3-PH
Duty Cycle	100% @ 125 A
Certifications	CSA
Maximum Clean Cut Thickness	1-1/4 inch (32 mm)
Cooling Method	Fan-cooled
Torch Options	Hand