8-4301 - Thermal Dynamics 8-4301 Switch Assembly for SL60/SL100 Torches

Genuine Thermal Dynamics 8-4301 Switch Assembly

The Thermal Dynamics 8-4301 Switch Assembly is a critical replacement component designed specifically for the SL60 and SL100 1Torch plasma cutting torches. As a genuine OEM part, it ensures seamless integration with your existing equipment, maintaining the high performance and safety standards expected from Thermal Dynamics (ESAB) systems. This assembly replaces the internal trigger mechanism responsible for initiating the pilot arc and controlling the cutting process.

Over time, the mechanical components of a torch trigger can wear out due to repetitive use, dust ingress, or rough handling in industrial environments. A failing switch can lead to intermittent arc starts, a stuck trigger (which is a significant safety hazard), or a complete failure to fire. The 8-4301 assembly provides a complete solution, including the high-durability microswitch and the necessary wiring leads to connect directly to the torch's internal circuitry. This eliminates the need for makeshift repairs and ensures that the torch operates exactly as the manufacturer intended.

This component is compatible with a wide range of plasma systems that utilize the 1Torch platform, including the popular Cutmaster series. By choosing genuine Thermal Dynamics parts, you protect your investment and ensure the longevity of your torch handle. The switch is engineered to withstand the electrical and mechanical stresses of daily plasma cutting, providing a tactile click and reliable electrical contact every time.

Key Technical Aspects:

• Compatibility: Fits SL60 and SL100 torch handles found on Cutmaster and other 1Torch-equipped systems.


• Construction: Industrial-grade microswitch with insulated wiring.


• Function: Controls the on/off signal for the plasma power source.


• Installation: Designed for drop-in replacement within the torch handle shell.