OTC DAIHEN
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DA-300P
Product Description
High-Quality AC/DC Hybrid Pulse TIG – Easy to Use!
Simple current adjustment via torch switch.
Improves weld quality in any position with multiple welding modes.
Enhances performance on thin plates using Pulse technology.
Stable welding from low to high current.
Ideal for aluminum, mild steel, and stainless steel.
Technical Specifications
| Category | Details |
| Model | DA-300DP |
| Power Supply | 3-phase |
| Rated Input Voltage | 400 V (±15%) |
| Input Power (Rated) | 18.4 kVA (AC-TIG), 11.8 kVA (DC-TIG), 13.0 kVA (IC-FRC) |
| Duty Cycle | 40% (standard) / 50% (AWb-37, AWb-38) / 100% (AWb-18) |
| Max. No-Load Voltage | 58 V |
| Load Voltage | 22 V (AC/DC-TIG), 30 V (IC-FRC) |
| Output Current Range | DC-TIG: 4–300 A, IC-FRC: 10–250 A, AC-TIG: 10–300 A |
| Output Control Range | Soft: 10–200 A, H2-TC: 10–300 A |
| AC/DC Hybrid Control | 10–300 A (adjustable) |
| Gas Pre/Post-Flow | Pre-flow: 0.1–20 sec, Post-flow: 0.1–30 sec |
| Pulse Settings | Frequency: 0.1–50 Hz, Width: 5–95% (default 50%) |
| AC Frequency | 50–200 Hz |
| AC Balance | -60–80% (positive electrode period) |
| Program Storage | 100 programs |
| Dimensions (W×D×H) | 260 mm × 640 mm × 544 mm (excluding handle) |
| Weight | ≤37 kg (varies by cooling method) |
| Cooling Method | Air cooling (standard) / Water cooling (AWb-18) |
| Start Method | High-frequency start / Touch start |
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