Miller 907321 208/240V 1-Phase 300A Millermatic 252 MIG Welder
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The Miller Millermatic 252 (SKU 907321) is a single-phase MIG (GMAW) welding machine with a transformer-rectifier power source that operates on 208 or 240 VAC at 60 Hz. The nameplate rates it at 30A/15.5V to 300A/29V output with duty cycles of 300A at 25%, 200A at 60% and 150A at 100%, open-circuit voltage of 38V, and an IP21 enclosure rating, with a CSA certification mark. Input draw is 68.1A max at 208V and 60A max at 240V. The unit has a wheeled running gear with a rear cylinder rack and safety chain, a front-mounted 50A-style power plug with attached cord, a MIG gun with cable, digital voltage and wire feed speed displays with dual control knobs, and was assembled in the USA by Miller Electric in Appleton, WI. This unit is new, open box.
Product Specifications
| Brand | Miller |
| Model | Millermatic 252 |
| MPN | 907321 |
| Welding Process | MIG (GMAW) |
| Input Voltage | 208/240 V |
| Phase | Single Phase |
| Frequency | 60 Hz |
| Output Current Range | 30-300 A |
| Output Voltage Range | 15.5-29 V |
| Rated Output | 300 A @ 29 V |
| Duty Cycle | 300 A @ 25%, 200 A @ 60%, 150 A @ 100% |
| Open Circuit Voltage | 38 V |
| Max Input Current @ 208V | 68.1 A |
| Max Input Current @ 240V | 60 A |
| Effective Input Current @ 208V | 48.8 A |
| Effective Input Current @ 240V | 45.0 A |
| Output Type | DC |
| Power Source Type | Transformer-Rectifier |
| Enclosure Rating | IP21 |
| Certification | CSA |
| Country of Manufacture | USA (Assembled in USA) |
| Color | Blue/Black |
| Portability | Wheeled cart w/ cylinder rack |
| Controls | Digital displays, voltage & wire speed knobs |
| Included | MIG gun, power cord w/ plug, cylinder chain |