A-2

INSTALLATION

A-2

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Do not touch electrically live parts or electrode with skin or wet clothing.

•Insulate yourself from work and ground.

•Always wear dry insulating gloves.

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FUMES AND GASES can be danger- ous.

•Keep your head out of fumes.

• Use ventilation or exhaust to remove fumes from breathing zone.

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WELDING SPARKS can cause fire or explosion.

•Keep flammable material away.

•Do not weld on closed containers.

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ARC RAYS can burn eyes and skin.

•Wear eye, ear and body protection.

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See additional warning information at front of this operator’s manual.

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CORRECT OPERATIONAL USE

The machine should be located in a clean dry place where there is free circulation of clean air such that air movement in through the front and out through the back will not be restricted. Dirt and dust that can be drawn into the machine should be kept to a minimum.

Failure to observe these precautions can result in excessive operating temperatures and nuisance shut- down of the machine.

LIMIT ON STACKING

WARNING

FALLING EQUIPMENT can cause

injury.

•Do not lift this machine using lift bale if it is equipped with a heavy accessory such as trailer or gas cylinder.

•Lift only with equipment of adequate lifting capacity.

•be sure machine is stable when lifting.

•Do not stack more than three high.

•Do not stack the DC-400 on top of any other machine.

The units may be stacked three high by observing the following safety precautions:

A.Make sure the first or bottom unit is setting on a level, well supported surface.

B.The units must be stacked with their fronts flush, making sure the two holes in the base rails of the unit being stacked on top are over the two pins located on the top front corners of the unit it is being stacked on.

Input Power Connections

By removing the rear access panel the three phase input power is connected to the three line terminals on the input contactor, and the earth grounding lead to the grounding terminal on the input box floor marked

with the symbol. Install and reconnect panel for the proper input voltage per the diagram pasted inside the access panel cover.

See Technical Specification Page:

IDEALARC® DC-400

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Lincoln Electric DC-400 Safety Precautions, FALLING EQUIPMENT can cause, Input Power Connections, Correct Operational USE
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DC-400 specifications

The Lincoln Electric DC-400 is a versatile and robust DC arc welding power source designed to meet the demands of various industrial applications. Known for its reliability and performance, the DC-400 is ideal for both professional welders and fabrication shops requiring robust equipment that can handle challenging welding tasks.

One of the main features of the DC-400 is its ability to provide a smooth, stable arc, which is essential for achieving high-quality welds. This welding machine is capable of delivering a wide amperage range, typically from 20 to 400 amperes, making it suitable for various welding processes, including MIG, TIG, and Stick welding. The unit's high output capabilities allow it to effectively weld a variety of materials, such as steel, stainless steel, and various alloys.

In terms of technology, the DC-400 integrates advanced power conversion technology that enhances energy efficiency while minimizing heat loss during operation. This not only contributes to lower operating costs but also ensures a longer service life for the machine. The DC-400 features a durable, rugged design, with a robust steel frame that can withstand the rigors of heavy industrial use while providing an IP23 rating for protection against moisture and dust.

Another notable characteristic of the DC-400 is its ease of use. The intuitive controls allow for quick adjustments to settings, enabling welders to easily adapt to different job requirements. The arc characteristics of the DC-400 can be fine-tuned to optimize performance for different welding applications, ensuring consistent results every time.

Moreover, the DC-400 is equipped with built-in safety features such as thermal overload protection, which prevents damage to the machine in case of prolonged operation under heavy loads. This feature enhances the safety of the operator and extends the life of the welding machine.

Overall, the Lincoln Electric DC-400 stands out as a reliable and efficient welding power source. Its combination of high-performance capabilities, advanced technology, and next-level usability makes it a popular choice in the industry. Whether for heavy fabrication, maintenance, or repair work, the DC-400 continues to prove itself as an indispensable tool for professional welders seeking quality and durability in their equipment.
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