. A complete Parts List is available at www.MillerWelds.com
OM-253086 Page 14
B. Maxstar
. Do not use information in unit specifications table to determine electrical service requirements. See Sections 5-7, 5-8 and 5-9 for information on
connecting input power.
. This equipment will deliver rated output at an ambient air temperature up to 104 F ( 40 C).
Welding Amperage
Range
Max Open Circuit
Voltage (Uo)
Low Open-Circuit
Voltage (Uo)
Rated Peak Striking
Voltage (Up)
IP Rating
1-280* 60♦ 8-15*** 15KV** 23
*Welding range for Stick process is 5-280 amperes. For TIG, the amperage range is tungsten diameter dependent (see Sections 8-4 and/or
9-3) depending on model.
** Arc starting device is designed for manual guided operations.
*** Low open-circuit voltage while in TIG Lift Arct, or while in Stick with low open-circuit voltage selected.
♦ Normal open-circuit voltage (60) is present while in Stick with normal open_circuit voltage selected.
Input
Type
Process Output Ratings
Amperes Input At Rated Output
50/60 Hz
Input Power
Current
(Amperes)
Voltage (DC) Duty Cycle 208V* 230V 400V 460V 575V kW kVA
Three Phase
Stick
280 31.2 15% 31.1 27.6 15.7 13.6 10.9 10.8 11.1
200 28 60% 20.2 17.8 10.2 8.9 7.0 7.0 7.2
160 26.4 100% 15.3 13.7 8.0 6.9 5.7 5.3 5.5
TIG
280 21.2 25% 21.9 19.8 11.3 9.7 7.8 7.7 8.0
235 19.4 60% 17.0 15.2 8.7 7.5 6.0 6.0 6.2
200 18.0 100% 13.9 12.3 7.2 6.2 5.3 4.8 5.0
Idle (no cooler) − − − 0.24 0.24 0.24 0.23 0.28 0.12 0.28
Idle (with cooler) − − − 0.97 0.94 1.07 1.09 1.19 0.38 1.19
Standby − − − 0.06 0.13 0.13 0.12 0.13 0.11 0.13
Single Phase
Stick
280 31.2 10% 52.3 46.5 26.5 22.8 18.4 10.9 11.0
180 27.2 60% 29.9 26.8 15.0 13.1 10.6 6.2 6.2
160
(145)*
26.4
(25.8)*
100% 23.1 23.3 13.2 11.6 9.3
5.3
(4.8)*
5.3
(4.8)*
TIG
280 21.2 25% 37.1 33.9 18.8 16.3 13.3 7.7 7.8
235 19.4 60% 28.4 26.3 14.7 12.8 9.8 6.0 6.0
200
(190)*
18.0
(17.6)*
100% 21.7 20.7 11.8 10.4 8.3
4.7
(4.5)*
4.8
(4.6)*
Idle (no cooler) − − − 0.3 0.29 0.35 0.26 0.42 0.07 0.24
Idle (with cooler) − − − 1.58 1.46 1.35 1.35 1.53 0.33 0.88
Standby − − − 0.04 0.21 0.15 0.15 0.15 0.06 0.09
* Ratings in parenthesis are for single phase, 208 Volt input power.
4-3. Static Characteristics
The static (output) characteristics of the welding power source can be described as drooping during the SMAW and GTAW processes. Static
characteristics are also affected by control settings (including software), electrode, shielding gas, weldment material, and other factors. Contact
the factory for specific information on the static characteristics of the welding power source.
Notes