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0320745002 - ESAB LHF Series Replacement Circuit Breaker Switch

Packaging: 1 per ea
$395.27/ea $238.53/1 per ea only $238.53/eaSave 40%

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OVERVIEW

Genuine ESAB Replacement Circuit Breaker for LHF Series

Maintain the operational integrity and safety of your industrial welding equipment with the ESAB Circuit Breaker (Part Number: 0320745002). Designed specifically for the renowned ESAB LHF series of welding rectifiers, this component is critical for protecting the machine's internal power electronics from overcurrent events and electrical faults. The LHF series, known for its robust performance in Stick (MMA) and TIG applications, relies on high-quality electrical protection to safeguard its thyristor control units and main transformers.

Using non-OEM electrical components in high-amperage welding power sources can lead to premature failure, improper tripping characteristics, or inadequate protection during surge events. This genuine ESAB part ensures that the trip curves and current ratings match the original engineering specifications of the LHF machine. Whether you are servicing an LHF 250, 400, 630, or 800, this breaker provides the exact form, fit, and function required for a seamless repair. It is constructed to withstand the thermal cycling and vibration common in heavy industrial environments, ensuring a long service life and reliable performance.

Industrial maintenance teams and repair technicians understand that downtime costs money. By stocking or utilizing genuine ESAB replacement parts, you ensure that repairs are permanent and reliable. This circuit breaker acts as the first line of defense for your power source, disconnecting power effectively when faults are detected to prevent catastrophic damage to the welder. Ensure your fleet of ESAB equipment remains compliant and safe by replacing worn or faulty breakers with this authentic factory component.

Key Technical Benefits

  • Precise Calibration: Engineered to trip at the exact current levels required to protect LHF internal circuitry.
  • OEM Fitment: Mounts directly into the existing chassis cutout without the need for drilling or adapters.
  • Durability: Built with high-grade materials to resist arcing and mechanical wear over thousands of cycles.
Additional Information
Packaging Description:1 Per Ea
Compatible Models:ESAB LHF Series, LHF 250, LHF 400, LHF 630, LHF 800
Part Type:Circuit Breaker, Electrical Component
Application:Overcurrent Protection, Power Source Repair
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Compatible Models:ESAB LHF Series, LHF 250, LHF 400, LHF 630, LHF 800
Part Type:Circuit Breaker, Electrical Component
Application:Overcurrent Protection, Power Source Repair
Brand:ESAB
Packaging Description:1 Per Ea

INCLUDED

  • 1 x ESAB Circuit Breaker (0320745002)
  • Installation Hardware (if applicable to specific batch)

APPLICATIONS

  • Repair of ESAB LHF 250 Welding Rectifiers
  • Repair of ESAB LHF 400 Welding Rectifiers
  • Repair of ESAB LHF 630 Welding Rectifiers
  • Repair of ESAB LHF 800 Welding Rectifiers
  • Replacement of worn, tripping, or seized circuit breakers
  • Restoration of older industrial stick welding power sources

FAQ

This circuit breaker (0320745002) is designed for the ESAB LHF series of welding rectifiers, including models like the LHF 250, 400, 630, and 800.

Yes, this is a genuine OEM replacement part manufactured by or for ESAB, ensuring exact specifications for your equipment.

A tripping breaker can indicate a short circuit inside the machine, an overloaded duty cycle, or the breaker itself may be worn out and tripping prematurely. If the machine checks out fine, the breaker likely needs replacement.

It is not recommended. Welding machines have specific current inrush and load characteristics. Generic breakers may not fit physically or might have different trip curves, compromising safety.

Symptoms include the machine not powering on, the switch feeling loose or not 'clicking' into position, or the breaker tripping immediately upon power-up even with no load.

Typically, OEM repair parts do not come with detailed manuals. It is recommended to refer to your machine's service manual or hire a qualified technician for installation.

It serves as both the main power switch and a safety device that automatically disconnects power if the current exceeds safe limits, protecting the machine's internal components.