Decrease Output Current And Arc Stretch For Lower Rated Electrical Service - Hypertherm Powermax45 SYNC Operator's Manual

2
Install and Set Up the Plasma Power Supply

Decrease output current and arc stretch for lower rated electrical service

If you operate the plasma power supply on an electrical service that is rated lower than what is
recommended in
Decrease the cutting current (amperage setting). Refer to

manually
Decrease plasma arc stretch. The more you stretch the plasma arc, the more current the

system pulls and the more likely you are to overheat the system or trip the circuit breaker.
Example: If you use a 1-phase system with an input voltage of 230 V on a 20 A breaker, the
recommended output current is 19 A.
Input voltage
Input current at rated output (19 A x 155 V = 2.9 kW)
Input current during arc stretch
Voltage tolerance
34
Voltage configurations
on page 57.
on page 31, you may need to:
811470
Adjust the operating settings
230 V
18 A
19 A
+20% to -15%
Operator Manual Powermax45 SYNC