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RS 400

Thyristorised Welding Rectifier
Rectifie the proven work horse for high quality welding

Thyristorised Welding Rectifier

Rugged construction and design makes it an obvious choice for project site jobs.

Precisely designed smoothening reactor enables almost ripple free welding output which reduces spatter level during welding. With the use of class-H insulation in the coil windings, long life in the most hazardous and demanding conditions is assured.



  • Excellent reliability with high performance, suitable for outdoor, on-site use, even with long leads and cellulosic electrodes
  • Immunity from AC input fluctuation of ±10% with built-in overload and thermal cut-out protections
  • In-built hot start facility ensures easy arc striking
  • Low power consumption
  • Ideal for Tig welding with suitable accessories
  • Remote control facility


  • Ideal for project site jobs
  • Rugged construction with heavy duty under carriage and rubber wheel
  • Class “H” insulation
Technical Data RS400
Supply voltage 415 V 10%
3 Phase, 50 Hz AC
Rated Input Current 27 Amps.
Rated kVA 18 kVA
Output Current range 10-400 Amps. DC
Maximum Current 400 Amps.
Open Circuit Voltage 90 V (max.)
Welding current control type Stepless
Insulation Class 'H'
Cooling Forced air cooled
Dimension (L x W x H) 825 x 695 x 1070 mm
Weight (Approx.) 195 Kgs.
Ordering Information  
Power source with remote control unit 461-0621-400
Click here to view manual of RS 400 in PDF format (185 KB)