907865002
The Miller XMT® 400 delivers powerful multiprocess performance in a compact, rugged design—combining high output, flexibility, and reliability for demanding welding applications.
Dedicated wire feeder options
Easy to use
EZ-Set simplifies parameter setup based on material thickness, removing complexity.Pulse capable
Accu-Pulse offers a more forgiving arc and compensates for variations in operator technique, providing a wider operating window.Welder friendly control panel
Process selector switch reduces the number of control setup combi nations without reducing any features. Large, dual digital meters are easy to view and are presettable to ease setting weld output. Auto Remote Sense™ enables unit to automatically use remote control if connected to remote control receptacle.Portability
Mobility is made easy with a small, compact design and Auto-Line technology.Reliability
Wind Tunnel Technology™. Internal air flow that protects electrical components and PC boards from dirt, dust and debris… greatly improving reliability. Fan-On-Demand™ cooling system operates only when needed, reducing noise, energy use and the amount of contaminants pulled through machine. Lightweight aerospace-grade aluminum case offers protection with the benefit of reduced weight. Dinse-style weld disconnects provide high-quality weld cable connections.Updatable
USB port on back panel allows XMT 400 to be easily updated in the field.Versatility
For portability and reliability, Auto-Line allows for any input voltage hookup (208–575 V, single- or three-phase) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable input power. 14-pin receptacle has the flexibility to be used with spool guns, legacy 14- pin feeders, and remote controls. ArcConnect™ is a next generation communication that utilizes high speed signals to improve weld performance and allow point-of-use controls to be located at the feeder.Multiprocess weld quality
High-quality performance in all welding processes. Adaptive Hot Start™ makes starting stick electrodes easy without creating an inclusion. Infinite arc control available in the stick and wire modes for easier fine tuning of tough-to-weld materials and out-of-position applications. Lift-Arc™ provides arc starting that minimizes contamination of the electrode and without the use of high-frequency. Optional gas valve kit for TIG applications.| Input power | Three-phase |
| Voltage range in CV mode | 10–38 V |
| Amperage range in CC mode | 5–425 A |
| Rated output | 400 A at 36 VDC, 60% duty cycle |
| 208 V | 47.4 |
| 230 V | 42.4 |
| 400 V | 24.4 |
| 460 V | 21.4 |
| 575 V | 18.0 |
| KVA | 17.1 |
| KW | 16.0 |
| Max. open-circuit voltage | 91 VDC 25/12 VDC* |
| Dimensions | H: 438 mm W: 324 mm D: 514 mm |
| Net weight | 34.0 kg |
| Input power | Single-phase |
| Voltage range in CV mode | 10–38 V |
| Amperage range in CC mode | 5–425 A |
| Rated output | 300 A at 32 VDC, 60% duty cycle |
| 208 V | 59.9 |
| 230 V | 52.1 |
| 400 V | 27.1 |
| 460 V | 23.5 |
| 575 V | 19.9 |
| KVA | 11.5 |
| KW | 10.8 |
| Max. open-circuit voltage | 91 VDC 25/12 VDC* |
| Dimensions | H: 438 mm W: 324 mm D: 514 mm |
| Net weight | 34.0 kg |
*When voltage reduction device is active. See owner’s manual for details.
907865002
The Miller XMT® 400 delivers powerful multiprocess performance in a compact, rugged design—combining high output, flexibility, and reliability for demanding welding applications.
