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Multi-PhaseThe Maxstar 400 is a high-performance TIG/Stick welding power source ideal for large-scale and precision metal fabrication applications. Miller’s Auto-Line Power Management allows for input voltage from 208 to 575v, making it ideal for any job setting--especially those with unreliable power.
Equipped with an arsenal of Miller-exclusive technologies, the Maxstar 400 enables smooth and precise arc welding in TIG mode and exceptional arc control in Stick mode. Miller’s Cooler-On-Demand™ and Fan-On-Demand™ ensure adequate cooling when needed while reducing noise, energy use and contaminants pulled through the cooler.
When you shop Welders Supply, you can always count on the lowest possible online prices on quality welding equipment and supplies. You also get free shipping on all orders over $300 (within the continental US).
| Input Power |
3-phase 1-phase |
|---|---|
| Welding Amperage Range |
3-phase: 3-400 A 1-phase: 3-400 A |
| Rated Output |
3-phase: 250 A at 30 V, 100% duty cycle 300 A at 32 V, 60% duty cycle 1-phase: 200 A at 28 V, 100% duty cycle 250 A at 30 V, 60% duty cycle |
| Max. Open-Circuit voltage |
75 VDC |
| Dimensions |
H: 24.75 in. (629 mm) W: 13.75 in. (349 mm) D: 22 in. (559 mm) |
| Dimensions with TIGRunner |
H: 43.125 in. (1,095 mm) W: 23.125 in. (587 mm) D: 43.75 in. (1,111 mm) |
| Net Weight |
134 lb. (61 kg) |
| Net Weight with TIGRunner |
251 lb. (114 kg) |
SHIPPING DIMENSIONS |
|
| Height: | 29.00 Inches |
| Width: | 15.00 Inches |
| Length: | 27.00 Inches |
| Weight: | 136 Lb(s) 0 Oz |
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