@60% Duty
@100% Duty
Weight
The most compact 3-phase 300A machine in its class. Easily carried to any site, floor, or elevated structure without lifting equipment.
Works reliably on DG sets and generator-supplied sites — critical for Indian construction projects.
Works with E6013, E7018, and other standard electrodes from 1.6 mm to 4.0 mm diameter — versatile for varied site work.
20 kHz IGBT inverter uses significantly less electricity than conventional transformer welders — reduces operating cost on long shifts.
The 330–500V wide input voltage range makes it particularly well-suited for construction sites in India where DG set or generator power is the primary supply — a common challenge for heavy infrastructure projects.
| Input Specifications | |
|---|---|
| Input Voltage | 415 VAC, 3-Phase, 50/60 Hz |
| Voltage Range | 330 VAC – 500 VAC |
| Input KVA @ 300A | 11.9 KVA |
| Input Cable | 4-core 2.5 sqmm, 4 m |
| Switching Device | IGBT Module |
| Output Specifications | |
| Output Current Range | 10A – 300A |
| Output @ 60% Duty | 300 Amps |
| Output @ 100% Duty | 205 Amps |
| Open Circuit Voltage | 85 VDC (max) |
| Output Type | DC Constant Current |
| Protection & Insulation | |
| Ingress Protection | IP21 |
| Insulation Class | Class H (180°C) |
| Cooling Method | Forced Air (Fan Cooled) |
| Thermal Protection | Auto Thermal Cutout |
| Mechanical Specifications | |
| Dimensions (L×W×H) | 515 × 260 × 395 mm |
| Weight | 21 kg |
| Body | Full Metal Chassis |
| Base | Rubber Foot |
| Lifting | Integrated Handle |
| * Specifications subject to change without notice. Contact APS Welding for latest data sheet. | |
APS Welding proudly presents the Arc Welding Machine 300 Amp, also known as the Discover 300 Arc – the most compact 3-phase welding solution in its class. This innovative machine is built for both production and outdoor site use, offering powerful performance and unmatched portability.
The Discover 300 Arc is equipped with cutting-edge 20KHz Full Bridge IGBT inverter technology, ensuring stable arc output and high-quality welds. With a wide input voltage range from 330VAC to 500VAC, the Arc Welding Machine 300 Amp remains reliable even in challenging power conditions. Weighing only 21kg, it is easy to carry while delivering the robust power needed for demanding welding applications.
Ideal for working on mild steel, stainless steel, and carbon steel, this Arc Welding Machine 300 Amp ensures precision, low spatter, and superior weld penetration. It’s a top choice for contractors, fabricators, and professionals who need mobility without compromising performance.
If you’re looking for a smart investment in productivity and durability, the Discover 300 Arc from APS Welding is the Arc Welding Machine 300 Amp you can trust.
| Application & Welding Capability | |
|---|---|
| Weldable Materials | Mild Steel, Carbon Steel, Structural Steel, Stainless Steel |
| Electrode Type | E6013, E7018 |
| Electrode Diameter | 1.6 mm, 2.0 mm, 2.5 mm, 3.15 mm, 4.0 mm |
| Recommended Job Thickness | 1.0 mm – 6.0 mm |
The Discover 300 ARC is a 3-phase industrial stick welder — it is not a general-purpose or entry-level welder. Understanding where it excels (and where it doesn’t) helps buyers make the right call.
Heavy fabrication industries
Structural steel welding
Construction & infrastructure
Industrial Maintenance & Repair
Maintenance & repair workshops
Farm & agricultural equipment
Engineering & manufacturing units
| Accessories | |||
|---|---|---|---|
| Accessory | Model | Specification | Link |
| Electrode Holder | EH20 | 200A rated, heavy-duty insulated grip for site and production use | View EH20 |
| Earthing Clamp | EC20 | 300A rated, strong spring-jaw design | View EC20 |
| Welding Cable | 25 sqmm | Heavy-duty flexible copper cable, rated for 300A operation | View Cables |
| Certification / Compliance | Scope | Relevance |
|---|---|---|
| ISO 9001:2015 | Complete manufacturing facility — Valsad, Gujarat | Quality-controlled production, consistent output standards |
| IS Certified | Applicable Indian Standards for welding equipment | Compliance with BIS standards for Indian market |
| MSME Registered | Advanced Power Sources Limited | Registered Indian manufacturer — supports domestic procurement requirements |
| CE Compliance | Available for applicable export models | European conformity — available on request for export buyers |
High output current suitable for thick metal welding
Stable arc for smooth and spatter-free welds
Rugged body for harsh working environments
Suitable for continuous operation
Optimized power consumption
Reduces electricity cost during long welding cycles
Supports E6013, E7018 and other standard electrodes
Ideal for mild steel and structural steel welding.
Simple internal design
Easy servicing and long component life
Yes, Discover 300 ARC is a heavy-duty industrial welding machine designed for continuous operation in fabrication shops and construction sites.
The machine supports electrodes up to 5.0 mm, including commonly used E6013 and E7018 electrodes.
No, it is designed with a simple and robust internal structure, resulting in low maintenance and long service life.
Yes, Discover 300 ARC is optimized for efficient power consumption, reducing operational electricity costs.
Yes, its rugged construction makes it suitable for on-site and outdoor welding applications.
APS welding is always ready to help you. For Sales Enquiries:Contact: +91 9601 444 111For booking service call:Contact: +91 9601 444 222
We design and manufacture all our products and thus we know the best about our products.
We are able to offer international technology and service at optimum prices.
Our team is regularly trained for updates in service techniques and also are constantly update on knowledge and skill.
We ensure you professionally managed sales and after sales support.
Office & Manufacturing Facility:
Survey No 172/1, Paikee 2, OLD GIDC Gundlav, Valsad, Valsad District, GUJARAT – 396035. INDIA.