Key facts
- Brand
- Kemppi
- Model
- FastMig X 350
- Documents
- 9
- Languages
- NO · EN · PT · ES
- Last added
- 2026-10-26
Start here
Kemppi FastMig X 350, X 450 Operating Manual
This document serves as the operating manual for the Kemppi FastMig X 350 and X 450 universal welding power sources. It provides instructions for installation, operation, maintenance, and troubleshooting, along with technical specifications and safety information. The manual is multilingual, with the Norwegian section detailed in the provided text.
Read onlineKemppi FastMig X 350 specifications
| Operating temperature range | -20...+40 °C |
|---|---|
| Protection class | IP23S |
| Mains supply voltage | 400 V 3~ |
| Minimum generator output | 35 kVA |
| Recommended cable cross-sectional area | 70 – 90 mm² |
All Kemppi FastMig X 350 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
- Kemppi FastMig X 350, X 450 Operating Manual 32 p
- Kemppi FastMig X 350, X 450 Operating Manual 31 p
- Kemppi FastMig X 350, X 450 Gas Shielded Welding Machine User Manual 31 p
- Kemppi FastMig X 350, X 450 Operating Manual 31 p
- Kemppi FastMig X 350, X 450 Operating Manual 32 p
- Kemppi FastMig X 350, X 450 Welding Machine User Manual 31 p
- Kemppi FastMig X 350MV Welding Power Source User Manual 29 p
- Kemppi FastMig X 350MV User Manual 29 p
- Kemppi FastMig X 350MV Operating Manual 29 p
Questions answered in these manuals
What is the recommended operating temperature range for the FastMig X 350 and X 450?
The recommended operating temperature range is –20 … +40 °C.
What is the minimum short-circuit current required for the power supply connection?
The equipment requires a short-circuit current (S sc) greater than or equal to 5.5 MVA.
What welding processes does the FastMig X 350 and X 450 support?
They are suitable for synergic pulsed MIG/MAG, synergic 1-MIG, basic MIG/MAG, modified WiseRoot+™ and WiseThin+™ processes, as well as MMA welding.
Can the machine be used with TIG welding?
Yes, TIG welding is available when the machine is connected to a MasterTig LT 250.
What welding processes are supported by the FastMig X 350 and X 450?
The FastMig X 350 and X 450 support MIG/MAG synergic pulsed, conventional MIG synergic, basic MIG/MAG, WiseRoot™, and WiseThin™ modified processes, as well as MMA and TIG (when connected to MasterTig LT 250).
From: Kemppi FastMig X 350, X 450 Gas Shielded Welding Machine User Manual
What is the recommended minimum generator output for use with these machines?
The recommended minimum generator output is 35 kVA for stable operation.
From: Kemppi FastMig X 350, X 450 Gas Shielded Welding Machine User Manual