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9-4935 - Thermal Dynamics 75ft RAS Grounding Cable

Packaging: pack of 1
$1,377.40/EA $874.12/pack of 1 only $874.12/EASave 37%

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OVERVIEW

Reliable Grounding for Your Plasma Table

If you run an automated plasma table, you know that electrical noise is the invisible enemy. It causes your torch to dive unexpectedly, your CNC to freeze mid-cut, or your motors to jitter. Often, these gremlins are traced back to poor grounding, specifically at the Remote Arc Starter (RAS). The Thermal Dynamics 9-4935 is the genuine 75-foot ground wire designed to solve exactly this problem. It connects your RAS box directly to a solid earth ground, giving that electrical noise a safe place to go so it doesn't mess with your machine's brain.

This isn't just a piece of wire; it's a heavy-duty, shop-ready cable built to last. At 75 feet long, it gives you plenty of slack to route the cable neatly from your gantry or power supply area out to your ground rod, keeping it away from signal cables to further reduce interference. The insulation is tough enough to handle being dragged across concrete or snaked through cable trays without wearing through. The ends come ready to bolt on, ensuring you get a solid, metal-to-metal connection that won't vibrate loose over time.

Using the correct grounding cables is one of the cheapest insurance policies for your expensive cutting equipment. A compromised or makeshift ground wire can lead to hours of troubleshooting and wasted material. By installing the Thermal Dynamics 9-4935, you are restoring your system to factory specs and ensuring that your high-frequency start signal stays where it belongs—at the torch—and doesn't wander into your control cables. Keep your cuts clean and your machine running smooth with this essential OEM component.

Additional Information
Packaging Description:1 Per Ea
Cable Length:75 ft
Application:RAS to Earth Ground
Conductor Material:Copper
Insulation Color:Green or Black (Standard Grounding)
Compatible Systems:Thermal Dynamics Automated Plasma Systems

INCLUDED

  • (1) 75-Foot RAS to Earth Ground Wire Assembly

APPLICATIONS

  • Grounding Remote Arc Starter (RAS) modules in automated plasma systems
  • Noise mitigation for CNC plasma tables
  • Industrial earth grounding for high-frequency welding equipment
  • Replacement of damaged or missing OEM ground leads

FAQ

It connects the Remote Arc Starter (RAS) chassis to Earth Ground to drain High Frequency (HF) noise and prevent interference with CNC controls.

The cable is 75 feet long, allowing for flexible installation in large industrial setups.

No, this is a chassis grounding wire for the RAS unit, not the work return lead that clamps to the metal plate.

The RAS generates high-voltage, high-frequency signals for arc starting. Without proper grounding, this energy can radiate as noise, disrupting sensitive electronics.

Yes, it can be shortened to the required length, but ensure a high-quality lug is re-installed to maintain a low-impedance connection.

It is designed for Thermal Dynamics automated plasma systems that utilize a separate Remote Arc Starter (RAS) module.

Yes, the assembly typically comes with factory-terminated lugs or connectors suitable for the RAS and ground rod connections.

Yes, this is a genuine Thermal Dynamics part, ensuring the correct wire gauge and insulation properties for the application.