17750020 - 50W 20 Ohm Non-Inductive Aluminum Wire Wound Resistor

Reliable Replacement Part for Welding Machines

Keep your welding equipment running at peak performance with this 50W 20 Ohm Aluminum Wire Wound Resistor. In the world of welding machine repair, high-power resistors are critical components often found in the power source circuitry, inverter modules, or soft-start mechanisms. A failed resistor can lead to erratic arc performance, machine faults, or complete system failure. This replacement part is designed to meet the rigorous demands of welding power sources.

This resistor is specifically a Non-Inductive (NI) type. Many modern inverter-based welders require non-inductive components to ensure the high-frequency switching circuits operate correctly without interference. Using a standard inductive wire-wound resistor in these slots can cause instability or damage to other components. This unit provides the correct 20-ohm resistance with a 50-watt power rating, ensuring it can handle the electrical stresses typical in welding operations.

The aluminum housing is designed for chassis mounting, which is standard in most welding machines. This allows the resistor to bolt securely to the machine's frame or internal heat sink, ensuring it stays cool during long duty cycles. Whether you are troubleshooting a MIG, TIG, or Stick welder, having the correct spec resistor is essential for a successful repair.

Repair & Maintenance Features

• Exact Spec Replacement: Matches 50W, 20 Ohm, Non-Inductive requirements.
• Easy Installation: Flanged aluminum housing for screw mounting.
• High Reliability: Designed to withstand thermal cycling common in welders.