XLNT ARC 300ST ARC Inverter Welding Machine

The XLNT ARC 300ST is a compact ARC inverter welding machine designed for repair welding, fabrication and industrial maintenance applications. The current product page positions it for workshops, fabricators, and maintenance teams that require a reliable inverter welder for regular professional use.

The supplied specification image lists a 20-200A adjustable output-current range, 220V- 15% input, 50/60Hz frequency, 60% duty cycle, 80% efficiency, 0.73 power factor, Class F insulation and IP21 housing protection.

Although the product is promoted as a 300A model, the technical image only supports an output range of 20-200A. Therefore, 300A should be treated as the product or marketing name until the physical machine rating plate confirms the actual maximum output.

20-200A Adjustable Welding Output

The supplied technical image lists an adjustable welding-current range of 20-200A.

The correct current setting depends on:

• Electrode diameter
• Electrode type
• Base-metal thickness
• Joint design
• Welding position
• Material condition
• Required penetration
• Electrical-supply stability
• Duty-cycle limitation

The supported electrode sizes and types are not currently stated. These specifications should be confirmed before adding an electrode-selection chart.

300A Product Positioning Requires Verification

The current website title and key-specification section promote the ARC 300ST as a 300A welding machine. However, the supplied technical image lists a maximum of 200A.

Recommended catalogue wording:

Marketed Amperage: 300A

Published Technical Output Range: 20-200A

Do not state that the machine delivers an actual 300A output unless the physical rating plate and manufacturer documentation confirm it.

220V 15% Electrical Input

The supplied technical image lists:

Input Voltage: 220V 15%

Frequency: 50/60Hz

Rated Input Current: 28.6A

Before using the welding machine, confirm that the electrical installation includes:

• Suitable plug and socket
• Correct MCB or circuit breaker
• Proper earthing
• Adequate supply-cable size
• Suitable extension cable
• Stable 220V electrical supply

Because the rated input current is listed as 28.6A, a normal low-rated household extension cable may be unsuitable. A qualified electrician should check electrical requirements.

Rated Input Current of 28.6A

The technical image lists a rated input current of 28.6A.

Confirm whether this represents:

• Rated input current at maximum output
• Maximum input current
• Current at the stated duty cycle
• Current under a particular test condition

Do not select the MCB, plug, socket or supply cable using this value alone without checking the machine rating label and manual.

55V No-Load Voltage

The supplied specification lists a no-load voltage of 55V.

No-load voltage is present when the machine is powered on but no welding arc is being produced. Avoid touching exposed terminals, electrodes or conductive welding components while the machine is connected to electricity.

Listed 60% Duty Cycle

The supplied image and current product page both list a 60% duty cycle.

Duty cycle indicates how long the machine may weld during a specified test period before cooling is required.

The available information does not state:

• The current at which 60% was measured
• The ambient test temperature
• The applicable testing standard
• The required cooling time

Use:

Listed Duty Cycle: 60%

Do not claim “200A at 60% duty cycle” or “300A at 60% duty cycle” until officially confirmed.

Listed 80% Efficiency

The supplied image and live product page list 80% efficiency.

This can be included in the technical specifications. Avoid direct efficiency comparisons with other machines unless all models were tested under equivalent standards and conditions.

0.73 Power Factor

The supplied specification lists a power factor of 0.73.

This is useful electrical information for professional buyers and installation planning.

Class F Insulation

The welding machine has a listed Class F insulation grade.

This specification should remain in the technical table, but it should not be used to claim a specific maximum operating temperature without supporting manufacturer documentation.

IP21 Housing Protection

The supplied image and product page list IP21 protection.

IP21 does not mean the machine is waterproof. Keep it protected from:

• Rain
• Direct water spray
• Standing water
• Wet workshop floors
• Damp storage
• Excessive grinding dust
• Conductive metal particles

Keep the ventilation openings clean and unobstructed during operation.

Digital Welding Control Panel

The product image shows a digital display and two adjustment controls.

Confirm whether the controls provide:

• Welding-current adjustment
• Arc-force adjustment
• Hot-start adjustment
• Voltage display
• Actual current display
• Thermal warning
• Error-code display

Until these functions are verified, use:

Digital Welding Control Panel

Do not advertise hot start, arc force, anti-stick or VRD based only on the appearance of the controls.

Suitable for Repair Welding

Repair welding is one of the principal applications listed on the product page. The ARC 300ST may be used for suitable machinery repairs, workshop maintenance and general metal-repair applications.

Actual suitability depends on the electrode, material thickness, electrical supply and duty-cycle limitations.

Suitable for Fabrication

Fabrication is also listed as a use case. The adjustable output can support compatible workshop fabrication and metal-joining work when used with the correct electrode and welding parameters.

Suitable for Industrial Maintenance

The live page positions the machine for industrial maintenance and identifies maintenance teams among its intended users.

Possible applications may include suitable repairs to:

• Workshop equipment
• Machinery frames
• Metal brackets
• Fabricated assemblies
• Gates and grills
• Agricultural equipment
• Construction equipment
• General steel fixtures

Accessories Require Clarification

The current website lists:

• Welding Machine
• Standard Accessories

This wording is too general and does not tell buyers exactly what is included.

Confirm whether the package contains:

• Electrode holder
• Electrode-holder cable
• Earth clamp
• Earth-clamp cable
• Power cable
• Power plug
• Welding mask
• Wire brush
• Shoulder strap
• User manual
• Warranty card

Replace “Standard Accessories” with a precise package list.

How to Use

1. Place the welding machine on a stable, dry and ventilated surface.
2. Confirm the electrical rating from the physical machine label.
3. Inspect the power cable, output terminals, electrode holder and earth clamp.
4. Attach the earth clamp securely to clean, bare metal.
5. Insert a compatible electrode into the holder.
6. Connect the machine to a suitable 220V electrical supply.
7. Select an appropriate welding-current setting.
8. Wear approved welding protective equipment.
9. Begin welding using the correct electrode angle and arc length.
10. Monitor the welding cables and machine temperature.
11. Follow the verified duty-cycle limitation.
12. Allow the machine to cool when required.
13. Switch off and disconnect the electrical supply after use.

Safety Instructions

• Wear an approved welding helmet with the correct shade.
• Wear flame-resistant gloves and protective clothing.
• Use suitable safety footwear.
• Ensure adequate ventilation or welding-fume extraction.
• Remove combustible materials from the working area.
• Never weld sealed tanks or pressurised containers.
• Inspect all electrical and welding cables before use.
• Use a properly earthed electrical supply.
• Keep the machine dry.
• Never touch exposed electrical terminals.
• Protect nearby people from welding arc and sparks.
• Keep ventilation openings unobstructed.
• Follow the listed duty-cycle limitation.
• Disconnect the machine before inspection or servicing.
• Internal repairs should be performed by qualified technicians.

Maintenance Instructions

• Keep the machine body clean and dry.
• Remove dust from ventilation openings regularly.
• Inspect the power cable and plug.
• Check the electrode holder and earth clamp.
• Inspect output terminals for overheating.
• Confirm that the cooling fan works correctly.
• Replace damaged cables with correctly rated parts.
• Do not wash or submerge the welding machine.
• Store the machine in a dry and protected location.
• Arrange periodic servicing based on operating hours.