Lincoln Electric WELD-PAK 90i FC K5255-1 is a compact wire-feed welder for self-shielded flux-cored welding in home workshops, farm maintenance and light fabrication. Its 120 V input and 20–120 A output range identify this configuration.
Key Features and Benefits
- Two adjustment knobs provide direct control of wire speed and voltage.
- A 15 lb inverter package supports carrying the machine between appropriate work locations.
- The listed gun and work connection support the documented base configuration.
- The model-specific input and output ratings help match the machine to the available circuit and work.
Technical Specifications
| Specification | Details |
|---|---|
| Model / manufacturer part number | K5255-1 |
| Processes | self-shielded flux-cored welding |
| Input power | 120 V, single-phase, 60 Hz |
| Output range | 20–120 A |
| Rated output | 90 A / 21 V at 30% duty cycle on 120 V input |
| Net weight | 15 lb (6.8 kg) |
Applications and Compatibility
For the shop, farm and repair applications identified by the manufacturer. Choose wire diameter, gas and polarity for the exact process; a different model in the same family can require different input power and accessories.
What Is Included
- (1) Instruction manual
- (1) Gun with 6ft. cable
- (1) .030 contact tip
- (1) .035 contact tip
- (1) Gasless nozzle
- (1) Drive roll for flux-cored welding
- (1) Ground clamp with 6ft. cable
Setup and Documentation
Check the exact machine code and nameplate before installation. Have the electrical supply and protective devices selected according to the operator instructions. Match the process, polarity, consumables and shielding gas to the welding procedure. Maximum output is not a continuous-duty rating; follow the stated duty cycle and allow the required cooling time. The relevant manufacturer document is available in Downloads & Documents.
Frequently Asked Questions
What input power does this model require?
120 V, single-phase, 60 Hz. Follow the machine nameplate and installation instructions.
Does it use solid MIG wire and shielding gas?
This FC model is documented for flux-cored welding. The 90i MIG is a separate model.
Is maximum output available continuously?
No. Compare rated amperage, voltage and duty cycle together. Maximum range and rated continuous operation are different specifications.