Max 503 IP54 ATX

Brand Name: STEL

Model: Max 503 IP45-ATX

Origin: Italy


Maximum Reliability

The many Multi-Process combinations from this robust globetrotter offer safe solutions to wide range of welding applications. Underground or Cross-country, Off-shore, Petro-che, arid or cold environments, marine, military, training schools. Optional ‘add-ons’ by means of simple external connections include MIG and TIG with HF ignition.

V.R.D. means: VOLTAGE REDUCTION DEVICE which is the reduction of the OCV(open circuit voltage) at a safety level below 25 V, in order to avoid Electrical Shocks. When the V.R.D. is activated the led showing the mode of welding will pulse.

  Part No: 609420000L


The many Multi-Process combinations from this robust globetrotter offer safe solutions to wide range ofwelding applications.Underground or Cross-country, Off-shore, Petro-che, arid or cold environments,marine, military, training schools. Optional ‘add-ons’ by means of simple external connections includeMIG, MIG PULSE, OFF-SHORE Feeder and Tig DC with HF ignition.IP54 with protection against water spray and dust , Dielectric Strength after 300 hours on Room at 90%Humidity, Voltage Reduction Device VRD give maximum safety to the operator on every working conditions.


Materials: Welding Process: Environments: Main features
• Mild Steels
• Stainless Steels
• Castings
• Aluminium and Alloys
• Copper Steels and Alloys
• Nichel Steels and Alloys
• Electrode Welding
• Cellulosic electrode Welding
• Tig HF Start Welding
• Mig/Mag Welding
• Mig/Mag Welding Pulse
• Medium-Heavy Fabrications
• Heavy carpentry
• Ship-Building
• Petrolchimical Plant
• Nuclear Plant
• Militay plant
• Workshops
• Multiprocess
• Digital Display
• Arc-Force & Inductance Adjustable
• Stainless Steels Casing
(Only for IP44-IP54)
• Interconnecting Cable with WAVES
(Only for Max 503 OFF SHORE)


Technical Data:
Main Voltage 400/500 V
Phase 3
Frequency 50/60 Hz
Real Current (35%) 22,8/18,2 A
Real Power (35%) 16/13 KVA
Power Factor 0,8
No Load Voltage OCV 20-80V
Current Range 4-500 A
Welding Current 40% (25°C) 500 A
Welding Current 45% (25°C) -
Welding Current 100% (25°C) 380 A
Welding Current 35% (40°C) 500 A
Welding Current 40% (40°C) -
Welding Current 60% (40°C) 420 A
Welding Current 100% (40°C) 350 A
Mechanical Data:
Earth Clamp - Cable/E.Holder 70 mm²
Degree Protection IP 54
Insulation Class H
Work Temperature 40°C
Length/Width/Height (mm) 680x310x475
Weight 60 Kg
The date are determinated at an environment temperature of 40°C


Available Versions:
Max 503 Electrode Version
Max 503 with T.R.U. 500
Max 503 with TOP 504 SM
Max 503 with TOP 504 XM


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