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RS 400S

Thyristorised Welding Rectifier
Simple & reliable for high quality welding

Thyristorised Welding Rectifier is an obvious choice for project site jobs. The reliable machine now comes in a new housing optimised for everyday usage. Powder coated sheet metal and class-H insulated coil ensure trouble free performance



  • Excellent reliability with high performance, suitable for outdoor, on-site use, even with long leads
  • 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
  • Remote control facility


  • Ideal for project site jobs
  • Rugged construction with heavy duty under carriage and rubber wheel
  • Class “H” insulation
Technical Data RS 400S
Voltage (Phases x Volts ± 10%, frequency) 3x415V, 50Hz
AC Rated Input Current 27 Amps.
Rated kVA (Max) 19.4 kVA
Open Circuit Voltage Volts DC (Max) 95V
Welding Current Range MMA DC 10-400A
Maximum Current 400 Amps.
Welding current control type Stepless
Insulation Class 'H'
Cooling Forced air cooled
Dimension (L x W x H) (Approx) 695 x 675 x 870
Remote Included as standard
Ordering Information  
Power source with remote control unit 46F 0409 400
Click here to view manual of RS 400S in PDF format (228 KB)