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9-5953 - Thermal Dynamics 9-5953 FET/CAP Circuit Board Assembly

Packaging: pack of 1
$5,804.29/EA $3,477.57/pack of 1 only $3,477.57/EASave 40%

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OVERVIEW

Restore Your Plasma Cutter with the Genuine 9-5953 PC Board

When your Thermal Dynamics plasma cutter goes down, getting it back up and running quickly with reliable parts is your top priority. The Thermal Dynamics 9-5953 PC Board Assembly is the genuine OEM replacement for the FET/CAP board found in select Cutmaster plasma cutters. This board is the heart of your machine's power system, combining the switching power of Field Effect Transistors (FETs) with the energy stability of high-performance capacitors. If your machine has stopped cutting, won't power up properly, or is displaying power-related fault codes, a compromised FET/CAP board is often the culprit.

Why Choose OEM?
Plasma cutters operate at high voltages and temperatures. Using aftermarket or repaired boards can lead to unstable arcs, reduced cutting power, or even catastrophic failure that damages other expensive parts of your machine. This genuine Thermal Dynamics part is built to the exact factory specifications, ensuring it fits perfectly and works seamlessly with your machine's logic and control systems. It comes pre-assembled with high-grade components that are matched to handle the specific electrical load of your Cutmaster unit, giving you peace of mind and long-lasting repairs.

Installation and Maintenance
Replacing the 9-5953 board restores your machine's ability to generate a smooth, powerful cutting arc. Because this component handles significant electrical power, it is located inside the main chassis of the unit. We recommend that installation be performed by a qualified repair technician to ensure safety and proper calibration. Once installed, this new board will help your plasma cutter deliver the clean, precision cuts you expect from Thermal Dynamics. Keep your shop running efficiently and minimize downtime by choosing the correct, high-quality replacement part for your investment.

Benefits of the 9-5953 Board:

  • Exact Fit: No modifications needed; drops right into the factory mounting points.
  • Restored Power: Brings back the full amperage and duty cycle of your machine.
  • Durability: Built to resist the vibration and heat of industrial workshops.
  • Reliability: Eliminates intermittent power issues caused by aging capacitors or blown transistors.
Additional Information
Brand:Thermal Dynamics
Product Type:Circuit Board, Replacement Part
Part Number:9-5953
Component Type:FET/CAP PCB Assembly
Compatible Equipment:Thermal Dynamics Cutmaster Series
Packaging Description:pack of 1

INCLUDED

  • 1 x 9-5953 PC Board Assembly (FET/CAP)
  • Anti-static packaging

APPLICATIONS

  • Repair of Thermal Dynamics Cutmaster plasma cutters
  • Replacement of failed inverter power modules
  • Restoration of arc stability and cutting output
  • Maintenance of industrial plasma cutting equipment

FAQ

The FET/CAP PCB (Field Effect Transistor / Capacitor) manages the high-speed power switching and energy storage required to generate the plasma arc in inverter-based machines.

Yes, this is a genuine Thermal Dynamics (ESAB) Original Equipment Manufacturer part, ensuring exact compatibility and performance.

This board is typically used in Thermal Dynamics Cutmaster series plasma cutters. Please check your machine's parts list or service manual to confirm compatibility with part number 9-5953.

Symptoms often include the machine failing to power up, tripping circuit breakers immediately upon turning on, lack of output power, or specific error codes indicating inverter or power faults.

While component-level repair is theoretically possible, it is difficult and often unreliable due to the multi-layer construction and matched component requirements. Replacement with a new OEM board is recommended for reliability.

Typically, service parts like this do not come with a manual. Installation should be performed following the service manual for your specific plasma cutter model.

If the FETs on the board mount to a heatsink, fresh thermal paste or thermal pads are usually required to ensure proper heat dissipation. Check the existing setup during removal.

Common causes include metal dust accumulation causing short circuits, power surges, overheating due to blocked airflow, or simply component fatigue over many years of service.