This document is the operating manual for DYNA MMA 300 and 303. It introduces the product features and characteristics, and provides installation advice and technical parameters.
The FCW DYNA MMA 300 and MMA 303 welding machines are designed for manual metal arc (MMA) and TIG welding. This manual provides safety warnings, installation recommendations, electrical connection guidelines, and detailed operating instructions for both welding modes.
Technical data such as input voltage, rated power, welding current range, load duty cycle, dimensions, and weight are listed, along with troubleshooting tips, a parts list, and wiring diagrams for service and maintenance. This manual is written in Chinese.
| Input Voltage (MMA 300) | 220/240 V 50/60 Hz |
|---|---|
| Rated Input Capacity | 16.6 kVA (MMA 300), 16.5 kVA (MMA 303) |
| Rated Welding Current | 300 A |
| Current Adjustment Range | 10 ~ 300 A |
| No‑load Voltage | 62/68 V (MMA 300), 54/59 V (MMA 303) |
| Rated Load Duty Cycle | 60 % |
| Weight | 24 kg (MMA 300), 24.5 kg (MMA 303) |
| Dimensions (mm) | 420 × 180 × 485 |
The DYNA MMA 300 requires a single‑phase input of 220 V to 240 V at 50 Hz or 60 Hz.
Both the MMA 300 and MMA 303 have a rated load duty cycle of 60 %.
MMA 300 uses a minimum 12 mm² cable, while MMA 303 uses a minimum 4 mm² cable.