The TELWIN SUPERIOR 250 400V isn’t just about power, it’s about intelligent control of the MMA welding process. The integrated Arc Force, Hot Start and Anti-Stick functions work synergistically to make your work easier, faster and more precise.

Arc Force dynamically adjusts the welding current according to the arc length. When the arc shortens (for example, when welding in forced positions or on uneven surfaces), the system automatically increases the current, preventing the arc from dimming and the electrode from sticking. This means smooth electrode guidance and a uniform weld. Hot Start is a momentary increase in current at the start of the weld, which guarantees an immediate and reliable arc strike, even with difficult alkaline electrodes or wet material. This eliminates frustrating start attempts and reduces the risk of defects at the beginning of the weld. The Anti-Stick function is your guardian angel – when an electrode sticks, the current is immediately reduced, making it easier to detach the electrode without damage and preventing the welder from overheating.

With these technologies, the welder gains confidence and control over every stage of welding. This translates into higher weld quality, fewer spatters, a reduction in post-processing time and the ability to work effectively even in less favorable conditions. This is a real game-changer for professionals who value efficiency and perfection.

The TELWIN SUPERIOR 250 400V offers not only excellent MMA welding capabilities, but also precision TIG welding with LIFT ARC contact ignition. It is ideal for welding carbon steels, low-alloy steels, stainless steels, copper and its alloys, where high quality and aesthetics of the weld count.

The TIG LIFT system involves gently touching the tungsten electrode to the weld material and then lifting it, which initiates the arc at a very low current. This prevents contamination of the weld with tungsten particles, which is crucial in applications requiring the highest metallurgical purity, such as in the food, pharmaceutical and chemical industries. Unlike rubbing (scratch) ignition, LIFT is more controlled and wears the electrode less.

For the professional, the ability to TIG LIFT weld means access to a precise method of joining materials to create smooth, aesthetically pleasing and highly durable welds, often requiring no further processing. The device provides a stable and focused arc, which is essential when welding thin sheet metal or making small fillet welds. This versatility opens the door to a wider range of orders and more advanced projects.

The TELWIN SUPERIOR 250 400V is designed for heavy-duty use in harsh industrial, workshop and field environments. The rugged IP23-rated metal housing provides resistance to dust and water droplets falling at angles of up to 60° from the vertical, which is crucial when working on construction sites or production halls.

The interior of the device hides an advanced cooling system with a powerful fan, which takes care of the optimal temperature of key components, even during prolonged operation with high current. What’s more, the SUPERIOR 250 is equipped with a comprehensive protection package: thermostatic (against overheating), overvoltage and undervoltage (to protect against voltage fluctuations in the grid), overcurrent (to protect against overloading) and protection against unstable power supply from a generator (voltage fluctuation tolerance +/- 15%).

For the professional, this means maximum reliability and minimal downtime. You can be sure that the welder will withstand the hardships of daily work, and smart safety features will protect it from damage, which translates into a long investment life and operator safety. This is equipment you can rely on, day in and day out.

The 400V three-phase power supply on which the TELWIN SUPERIOR 250 operates is a guarantee of stable and high output power, which is necessary for efficient welding of thick sections and the use of larger diameter electrodes. Compared to single-phase equipment, three-phase welders offer better arc characteristics, higher energy efficiency and less strain on the electrical grid.

A high power factor (cosphi) of 0.9 indicates efficient use of the energy consumed, which translates into lower electricity bills in the long run. Importantly, the SUPERIOR 250 is designed to work with generators. Built-in protections and input voltage stabilization (tolerance of +/- 15%) allow safe and efficient operation even in places where access to a stable electrical grid is limited or impossible.

For the professional, this means greater mobility and versatility. The ability to connect to a generator paves the way for assembly work in the field, on ships, in remote locations or during power failures. This is a key feature for companies providing welding services in various, often unpredictable conditions.