Jasic ET-300P DC Pulse TIG & MMA Welder - 300A (400V Three Phase)
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- DC pulse TIG and MMA inverter welder, 400V three-phase, up to 300A
- TIG range 5–300A, MMA range 10–270A with 40% duty cycle at 300A
- Weighs 18.2kg with air-cooled TIG torch, work return lead, 2m gas hose and regulator included
- Digital pulse control, HF and Lift TIG ignition, Dash-Arc technology, 2T/4T/spot trigger modes
- Generator-friendly with AVR (15kVA recommended), IP23S protection, Class H insulation
The Jasic ET-300P is a 400V three-phase DC pulse TIG/MMA inverter delivering up to 300A with digital control and full pulsing functions.
Supplied with air-cooled TIG torch, work return lead, 2m gas hose and regulator.
The Jasic ET-300P TIG 300 DC Pulse Inverter is a high-performance three-phase TIG/MMA welder designed for professional fabrication and site applications.
With a TIG range of 5–300A and MMA range of 10–270A, it offers a 40% duty cycle at 300A, making it suitable for demanding jobs.
Digital pulse control allows precise heat management, while microprocessor-driven functions ensure consistent arc quality.
Operators benefit from HF and Lift TIG ignition, VRD safety, ClearVision digital display, intelligent fan/cooler control, program memory storage, and flexible 2T/4T/spot trigger modes.
The machine incorporates Dash-Arc technology for 99%+ arc start success, Smart Gas for optimised post-flow, and full MMA capability with Hot Start, Anti-Stick and Arc Force control.
Generator-friendly with AVR (15kVA recommended), the ET-300P is highly portable at just 18.2kg.
Supplied with an air-cooled TIG torch, work return lead, gas hose and regulator, with optional water cooler, trolley, remotes and foot pedals available.
| TIG Current Range | 5–300A |
| TIG Rated Input Power | 8.5 kVA |
| TIG Effective Current (Ieff) | 7.9A |
| TIG Duty Cycle (40°C) | 40% @ 300A |
| MMA Current Range | 10–270A |
| MMA Rated Input Power | 10 kVA |
| MMA Effective Current (Ieff) | 9.2A |
| MMA Duty Cycle (40°C) | 40% @ 270A |
| Input Voltage | AC 400V, 50/60Hz (Three Phase) |
| No Load Voltage | 70V |
| Efficiency | ≥85% |
| Power Factor | 0.94 |
| Idle State Power | <8W |
| Dimensions (mm) | 558 × 230 × 416 |
| Weight | 18.2 kg |
| Protection / Insulation | IP23S / Class H |
| Recommended Generator Size | 15 kVA (AVR required) |
| Package Includes | Air-Cooled TIG Torch | Work Return Lead | 2m Gas Hose with Fittings | Regulator |
| Optional Accessories | LC-40 Water Cooler | TR-03 Trolley | Wired/Wireless Remote | Wired/Wireless Foot Pedal | Bluetooth App Module |
| Enclosure Rating | IP23 / IP23S or higher |
| Pulse Welding | Pulse |
| Power Source | Industrial 3-Phase (400V) |
| Applications | Industrial Workshop (300-400A) |
| Duty Rating | Medium Duty (30-60%) |
| Portability | Compact / Carry Handle |
| Ignition Type | HF, Lift |
| TIG Duty Cycle | 40% at 300A |
| MMA Duty Cycle | 40% at 270A |
| Brand | Jasic |
| Input Voltage | 400V |
| Amperage | 210A, 300A |
| Cooling | Air Cooled |
| Welding Process | MMA, TIG |
Jasic ET-300P - Technical Datasheet
Download PDFA carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.
Jasic ET-300P DC Pulse TIG & MMA Welder - 300A (400V Three Phase) Get in touch
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12 Mary Seacole Road
The Millfields
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PL1 3JY
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