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0558102428 - ESAB Replacement Main Transformer with NTC Sensor

Packaging: pack of 1
$654.24/EA $391.98/pack of 1 only $391.98/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Get Your Welder Back to Work

There is nothing more frustrating than a welder that won't weld. When your machine goes down, production stops, and deadlines are missed. If your ESAB machine has been diagnosed with a faulty main transformer, the ESAB 0558102428 Main Transformer with NTC is the exact replacement part you need to get back up and running. This isn't just a generic coil; it is the heart of your machine's power system, responsible for delivering the smooth, consistent power you rely on for quality welds.

Why is the NTC important?
You might notice the "NTC" in the name. This stands for the temperature sensor built right into the transformer. Welding generates a lot of heat, and your machine works hard. This sensor acts as a safety guard, constantly telling your welder's brain how hot the transformer is getting. It prevents your machine from burning out during those long, heavy welds. By replacing the entire assembly with this genuine part, you are not just fixing the power output; you are restoring the safety features that protect your investment.

Genuine Quality Matters
When it comes to internal electronics, fitting matters. This transformer is designed to bolt right in and connect perfectly to your ESAB machine's existing wiring harness. No guessing, no modifying, and no worrying if it will handle the load. It is built to the same rugged standards as the original part that came with your machine. Whether you are running a fabrication shop or a repair business, using authentic ESAB parts ensures that the repair holds up over time.

Installation Note
Replacing a main transformer involves working with the internal components of your welding power source. Because capacitors can hold a charge even when unplugged, and high voltages are involved, we strongly recommend that this part be installed by a qualified repair technician. Protect yourself and your machine by ensuring the repair is done safely and correctly.

Additional Information
Brand:ESAB
Item:Transformer
Packaging Description:1 Per Ea
Part Type:Main Transformer
Sensor Type:NTC Thermistor
Compatible Equipment:ESAB Welding Machines

INCLUDED

  • 1 x Main Transformer with NTC (3X)

APPLICATIONS

  • Replacement of failed main transformers in ESAB welding power sources
  • Repair of machines exhibiting "no arc" or thermal error codes
  • Restoration of proper voltage step-down functionality
  • Maintenance of industrial welding equipment

FAQ

The NTC (Negative Temperature Coefficient) is a thermistor that monitors the temperature of the transformer. It provides feedback to the welding machine's control board to prevent overheating and thermal damage.

Yes, this is a genuine OEM replacement part manufactured by ESAB, ensuring exact compatibility and performance.

Common symptoms include a machine that turns on but produces no welding output, a loud humming noise, tripping breakers, or a burning smell coming from the machine.

Installation involves high-voltage internal components. It is highly recommended that a qualified service technician perform the replacement to ensure safety and proper calibration.

No, transformers are specific to the machine model and power requirements. Please check your welder's parts manual or contact support with your serial number to confirm compatibility.

In parts nomenclature, this often refers to the quantity used in the assembly or a specific version identifier, but for ordering purposes, this SKU represents a single transformer unit unless otherwise specified.

If the overheating error is caused by a faulty NTC sensor within the old transformer or a shorted winding causing excessive heat, replacing this unit should resolve the issue.

Typically, internal repair parts like transformers do not come with screws or bolts; you usually reuse the existing hardware from the machine chassis.