The ESAB Contactor Lovato 11 BF80 0042 (Part Number: 0349313278) is a critical electromechanical component designed to restore the functionality of heavy-duty industrial welding power sources. Manufactured by Lovato Electric, a global leader in industrial automation and energy management, this BF80 model contactor is engineered to handle the rigorous demands of high-amperage welding circuits. It serves as the primary switching mechanism, controlling the flow of high-voltage power to the transformer or output stage of the welding machine based on the trigger signal from the operator.
This specific unit features a 42V AC 50/60Hz coil, a standard control voltage utilized in many ESAB machines to ensure operator safety and compliance with industrial electrical standards. The "BF80" designation indicates a rated operational current of approximately 80 Amps (AC-3 duty), making it suitable for medium-to-heavy industrial welding rectifiers and MIG power sources. The contactor is built with high-quality silver alloy contacts that resist arcing and welding, ensuring a long service life even under frequent switching cycles typical of tack welding or pulse applications.
For MRO professionals and maintenance technicians, using genuine OEM parts like the ESAB 0349313278 is essential for maintaining the validity of equipment warranties and ensuring system reliability. Generic replacements may not match the precise coil resistance or pull-in voltage required by the welder's control PCB, potentially leading to board failures or erratic arc initiation. This Lovato contactor offers a direct physical fit, aligning perfectly with the mounting rails and terminal connections inside compatible ESAB cabinets, thereby minimizing downtime during repair procedures.
| Additional Information |
|---|
| Packaging Description:1 Per Ea |
| Item:Contactor |
| Component Type:Magnetic Contactor |
| Model:Lovato BF80 |
| Coil Voltage:42V AC |
| Amperage Rating:80 A |
| Frequency:50/60 Hz |
| Application:Welding Power Source Control |
| ----- new values below ---- |
| Component Type:Magnetic Contactor |
| Model:Lovato BF80 |
| Coil Voltage:42V AC |
| Amperage Rating:80 A |
| Frequency:50/60 Hz |
| Application:Welding Power Source Control |
| Brand:ESAB |
| Item:Contactor |
| Packaging Description:1 Per Ea |
