46N50 - ESAB HW-12 Single Button Momentary TIG Switch

Precision Control for Industrial TIG Welding

The ESAB 46N50 Single Button Switch is a critical component designed specifically for the HW-12 series of TIG welding torches. In the realm of precision gas tungsten arc welding (GTAW), the reliability of the arc initiation system is paramount. This switch assembly provides a robust and tactile interface for the operator, allowing for immediate and consistent remote contactor control. Engineered by ESAB, a global leader in welding technology, this component meets stringent quality standards to ensure it performs reliably in demanding industrial environments.

The switch features a momentary action mechanism, meaning the circuit is closed only while the button is depressed. This is the standard configuration for TIG welding, allowing the welder to initiate the arc with a press and terminate it by releasing the button, or to trigger 2T/4T latching sequences if the power source supports such logic. The internal contacts are designed to resist oxidation and wear, ensuring that the signal to the power source remains clean and interruption-free over thousands of cycles. This is essential for preventing arc stutter or failure during critical weld passes.

Installation of the 46N50 is straightforward, designed to integrate seamlessly with the ergonomics of the HW-12 handle. The housing is constructed from high-impact, heat-resistant polymers that protect the internal wiring and mechanism from the radiant heat of the welding arc and the physical abuse typical of a fabrication shop. By using genuine ESAB replacement parts like the 46N50, facilities maintain the integrity of their equipment, ensuring safety compliance and operational efficiency. This switch is not merely a spare part; it is a restoration of the torch's original performance capabilities.

Whether used in aerospace, petrochemical, or general fabrication applications, the consistency of the welder's tools directly impacts the quality of the final joint. A failing switch can lead to frustration and defects. The ESAB 46N50 eliminates these variables, providing a crisp, responsive click that welders can feel even through heavy protective gloves, ensuring they are always in complete control of the welding process.