VR400

Precision Welding in Any Position A high-performance inverter DC welder optimized for Cellulose-coated electrodes. It delivers exceptional arc stability and features Arc Drive Control to prevent electrode sticking. Compact, efficient, and engineered for seamless multi-position welding in professional environments.
VR400

Main Features

  • IGBT Inverter Control: Features an advanced module for easy arc strike and high stability.


  • Perfect Constant Current: Ensures consistent welding current regardless of hand position, input voltage fluctuations, or cable length.


  • Versatile Applications: Ideal for oil & gas, pressure tanks, construction, and general factory repairs.

  • Remote Control Ready: Automatic recognition for optional remote control boxes to simplify settings.


  • Stackable Design: Units can be stacked securely to save operational space.


  • Comprehensive Protection: Includes circuits for over-voltage, low-voltage, and phase loss, plus a standard electric shock prevention device.


  • Rugged Construction: Dust-proof design built for harsh working environments.

VR400

Technical specification

Welding power supply VR400
Power Source Voltage 380 V  ± 10%
Number of Phase 3
Rated Frequency 50/60 Hz
Rated Output Current Range 10~400 A
Rated Duty Cycle 60%
External Dimensions (W x D x H) 329 x 608 x 598 (mm)
Mass 56.2 kg
Input Cable  and Grounding Cable 8 mm² or more
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Application Scenarios

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MRA630

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MR400

The MR315 and MR400 utilize constant current characteristics to maintain a highly stable arc, ensuring consistent weld quality. The integrated Arc Thrust function effectively prevents electrode sticking, facilitating a seamless and smoother welding o

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Contact Us:
otcda@otc.co.th
02-714-3201