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MST355DC Kemppi Master T 350A DC TIG Power Source - 400v, 3ph
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    Rapid Ref : MST355DC  

    Kemppi Master T 350A DC TIG Power Source - 400v, 3ph
    MST355DC

    £2559.00  EX VAT
    SSP Suggested Selling Price = £3009.60  YOU SAVE £450.60
     Buy in 3 easy interest free payments of £853.00† with

    MASTER YOUR TIG WELDING

    The Master T TIG welding machine sets the benchmark for weld quality, usability, and energy efficiency in professional DC and AC/DC TIG welding. Built for welders who demand precision and companies who value efficiency, Master T combines advanced welding performance with durability and ergonomics to excel in any environment.

    Product Details

    Available in power variants up to 400 A, Master T delivers a smoother arc ignition, reduced noise levels, and enhanced control, ensuring consistent, high-quality results from start to finish. Weld Assist technology speeds up setup, even at lower currents, helping you meet tight deadlines without compromising weld quality.

    The Master T’s modular design lets you tailor your setup with alternative control panels, wireless remotes, and transport carts. Its robust, lightweight construction, crafted from impact-resistant injection-moulded plastic, is designed to withstand the toughest welding conditions while remaining easy to handle. Paired with Kemppi's Flexlite TX TIG torches, you get unmatched comfort and arc control for long shifts.

    For welders, this means a reliable, easy-to-use machine that delivers top tier results every time. It’s an investment in future-fit welding technology that improves productivity, reduces downtime, and supports sustainable, energy-efficient operations.

    Master your craft with Master T — the professional’s choice for TIG welding.

    Related Items

    Kemppi Master 3500 Machine Parts FAQs

    Questions about replacing the internal and panel parts of a mains-powered welding power source, such as fans, sockets, switches and indicator lamps.

    How do I identify the right spare part for my welding machine?icon-minus-redicon-plus-red

    Start with the rating plate on the machine. It shows the maker, the type designation, the supply requirements and the serial number, and it is often all the information you have if the handbook is missing. Quote the serial number accurately when ordering spare parts or arranging repairs.

    Note the type and serial number, then use the parts list in the manual to find the item and its part number. Where you can, also read any number off the old part, and take a clear photograph of it, its connector and its position before you remove it.

    What does the overheating lamp on the front panel mean?icon-minus-redicon-plus-red

    On many welding power sources an indicator, often yellow or amber, lights when the machine has overheated. The machine then cuts its output until it has cooled, and the lamp goes out when it is safe to carry on. This is the thermal protection doing its job, not necessarily a fault.

    Common causes are exceeding the duty cycle, blocked vents or a fan that is not turning. Leave the machine switched on so the fan can run, if the manual says so, then check the vents and fan. If it trips again very soon after cooling, have it checked rather than replacing lamps or parts at random.

    How do I keep the cooling air path clean?icon-minus-redicon-plus-red

    Dust and metal particles clog vents and slow the fan, which is a common reason for overheating. Clean dust out regularly with dry, clean compressed air at a reduced pressure so small parts are not damaged, and more often in smoky or dusty workshops. The power must be off and the plug pulled before the housing is opened.

    Keep a clear space around the air inlets and outlets, and avoid standing the machine where it will draw in grinding dust. Wiping the outside is not enough: the build-up that matters is inside, around the fan and heatsinks, so make this part of regular servicing.

    What are the signs that the cooling fan is failing?icon-minus-redicon-plus-red

    Typical signs are a grinding or rattling noise, a fan that does not start when the machine is switched on, a fan that turns slowly, or a machine that keeps tripping its overheating protection. Check first that nothing is blocking the blades and the vents are clear.

    When replacing a fan, do not rely on size alone. Match the supply voltage and type shown on the old fan, its airflow rating, mounting and connector, and fit it so air moves in the same direction as the original, which is often marked by an arrow. A weaker or wrong-voltage fan can cause overheating or damage the control circuits.

    See all 6 questions for this category

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