The ESAB 0558002743 High Frequency PC Board is a critical replacement component designed specifically for the Heliarc 161 TIG welding power source. In the world of precision welding, the reliability of your equipment is paramount. The Heliarc 161 is a workhorse machine known for its stable arc and versatility, but like all complex electronics, internal components can degrade over time or fail due to electrical surges. This Printed Circuit Board (PCB) is the heart of the machine's High Frequency (HF) system, a function that is absolutely essential for professional TIG welding applications.
High Frequency capability allows the welder to establish an arc without the tungsten electrode touching the workpiece. This "non-contact" start is vital for preventing tungsten inclusion in the weld puddle and maintaining the geometry of the sharpened tungsten tip. When the HF board fails, operators often experience difficulty starting the arc, erratic arc behavior, or the complete loss of HF functionality, forcing them to resort to scratch-start methods that are unsuitable for high-quality aerospace or sanitary welding. Installing this genuine ESAB replacement board restores the machine's original factory performance, ensuring instant, reliable arc ignition every time the pedal is depressed.
As an OEM (Original Equipment Manufacturer) part, this board is engineered to the exact specifications of the Heliarc 161. Unlike generic aftermarket boards that may require modification or lack the robust shielding against electrical noise found in a welding environment, the 0558002743 fits perfectly into the existing chassis and integrates seamlessly with the main control logic. It is built to withstand the thermal cycling and vibration inherent in industrial environments. Whether you are a repair technician servicing a client's machine or a shop owner maintaining your own fleet, using genuine ESAB parts guarantees compatibility and longevity.
Replacing the High Frequency board is often the definitive solution for a Heliarc 161 that powers on but refuses to initiate an arc in TIG mode. By investing in this authentic replacement part, you extend the service life of your valuable welding equipment, avoiding the high cost of replacing the entire power source. Ensure your shop continues to produce x-ray quality welds by maintaining the integrity of your machine's control systems with the ESAB 0558002743.
| Additional Information |
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| Packaging Description:1 Per Ea, pack of 1 |
| Compatible Model:Heliarc 161 |
| Part Type:High Frequency PC Board, PCB |
| Component Function:Arc Stabilization, Arc Starting |
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| Compatible Model:Heliarc 161 |
| Part Type:High Frequency PC Board, PCB |
| Component Function:Arc Starting, Arc Stabilization |
