The ESAB 0558001379 Fuse is a critical replacement component designed to restore functionality and safety to your ESAB welding equipment. Electrical fuses are the first line of defense in any industrial power source, sacrificing themselves to protect more expensive internal components like circuit boards, transformers, and rectifiers from catastrophic damage due to overcurrent events. This specific unit is a Midget-style cartridge fuse, a standard industrial form factor often used in control circuits and auxiliary power systems within welding machines.
This fuse is rated for 2 Amperes and up to 600 Volts AC. It features a Slow Blow (Time Delay) characteristic. Unlike fast-acting fuses that blow immediately upon detecting a spike, a slow-blow fuse is engineered to withstand temporary, harmless inrush currents that occur when a machine is first turned on or when a motor starts. This prevents nuisance blowing during normal operation while still providing reliable protection against sustained overloads or short circuits. Using a fuse with the incorrect speed rating—even if the amperage matches—can lead to frequent machine downtime or inadequate protection.
When maintaining high-performance welding equipment, using Genuine ESAB parts is essential. Generic fuses may not meet the specific interrupting ratings or thermal characteristics required by ESAB engineering standards. The 0558001379 is manufactured to precise tolerances to ensure it fits perfectly in the fuse holder and performs exactly as the original component. Whether you are troubleshooting a plasma cutter, a MIG power source, or a TIG inverter, verifying your service manual for part number 0558001379 ensures you are installing the correct protection device.
We recommend keeping spare fuses on hand, as electrical faults can happen unexpectedly due to input power fluctuations or component aging. Replacing a blown fuse is a simple repair, but diagnosing the root cause is also important. If this fuse blows repeatedly, it may indicate a deeper issue within the machine or the input power supply. Always ensure the machine is disconnected from primary power before accessing the fuse block to replace this component.
| Additional Information |
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| Packaging Description:1 Per Ea, pack of 1 |
| Amperage:2A |
| Voltage:600VAC |
| Part Type:Replacement Part |
