Key facts
- Brand
- Kemppi
- Model
- KMS 400 AS
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-01
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Kemppi KMS 400 AS Welding Equipment Operating Manual
The Kemppi KMS 400 AS operating manual guides users through safety instructions, installation steps, control functions, troubleshooting and maintenance for the FastMig welding equipment.
It also contains technical specifications such as voltage, power, welding current ranges, dimensions, weight and warranty information.
Kemppi KMS 400 AS specifications
| Connection voltage | 400 V 3~, 50/60 Hz |
|---|---|
| Rated power | 19.5 kVA (60%‑80% ED) |
| Welding voltage range (MIG) | 10 V … 39 V |
| Maximum welding voltage | 46 V |
| Open circuit voltage | 50 V |
| Efficiency at max current | 87 % |
| Power factor at max current | 0.9 |
| Operating temperature range | -20 … +40 °C |
| Degree of protection (IP rating) | IP23S |
| External dimensions (L×W×H) | 590 × 230 × 430 mm |
| Weight | 35 kg |
Source: Kemppi KMS 400 AS Welding Equipment Operating Manual
All Kemppi KMS 400 AS documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the recommended operating temperature range?
The machine is designed to operate between –20 °C and +40 °C.
What safety equipment should be used when welding with the FastMig KMS 400 AS?
Operators should wear eye protection, appropriate face shielding, protective gloves, clothing, footwear and hearing protection if noise exceeds 85 dB.
What welding processes does the KMS 400 AS support?
It is suitable for MMA and MIG welding in DC.
From: Kemppi KMS 400 AS Welding Power Source Operating Manual
What is the recommended operating temperature range?
The recommended operating temperature range is –20…+40°C.
From: Kemppi KMS 400 AS Welding Power Source Operating Manual