image alt

RX1 Series(YD-200RX1 / YD-350RX1 / YD-500RX1)

RX1 Catalog
* In addition to this product (welding power source), a wire feeder, remote control unit, torch, and gas regulator are required for welding.

Key functions

  • Higher level of energy saving performance

  • Capable of high-quality welding

  • A robust, compact, and lightweight structure allowing simple operation


Ease of use

A variety of arc characteristics are available as standard. The optimal mode can be selected according to various welding situations.

Operation costs

Inverter-based optimal control achieves energy saving during welding and standby.

Degree of freedom for setting changes

Switches for detailed settings are located on the front panel. Users can finely tune welding settings.

Strengths and Features

rx1 energy comparison graph

Integrated control technologies achieve energy saving during welding and standby.

The RX1 series integrates Panasonic control technologies to reduce power consumption not only during welding, but also on standby by stopping the power supply to the transformer after welding is finished. Furthermore, this series is equipped with an energy saving circuit to stop the cooling fan approximately seven minutes after the torch is switched off. More energy-saving effects can be expected compared to welding machines without the energy saving circuit.

* Power consumption reduction effects vary depending on the use environments.

RX1 digital waveform control

Stable arcs enable high-quality welding

The RX1 series is equipped with digital waveform control. This series has evolved the development technology for full digital control welding machines to achieve stable arcs from a smooth arc start. Furthermore, a centralized welding condition control function has been adopted to improve work efficiency. To set welding conditions, users only need to adjust the current using the remote control unit, while leaving the optimal voltage setting to the welding power source.

RZ1 simple operation

Achieved simple operation in addition to a robust, compact, and lightweight structure

The RX1 series has passed various tests in hot and humid environments with better performance than conventional models, and also improved its environmental resistance. With a sheet metal structure that can be used in any welding site environments, it is both compact and lightweight, making it ideal for replacing thyristor-controlled welding machines. The wheels installed for smooth movement have also improved mobility.

RX1 operation panel

Operation panel with improved ease of use

This series has adopted a large digital display that improves visibility from a distance or in dark places such as factory walls. Equipped with a waveform control dial that allows users to adjust the arc setting to their desired one, this series can be used in a similar manner to conventional models.


Detailed settings can be changed

Switches for changing detailed settings are provided on the front panel. Customers can fine-tune the welding settings for their desired conditions.

* Please refer to the instruction manual for how to change settings.

RX1 comparison list

Mutual compatibility of ancillary devices with the KR2 series

The mutual compatibility of ancillary devices with the best-selling thyristor-controlled KR2 series machines has been achieved. The currently used ancillary devices can be used without modifications even when replacing the power source.

Option List


Wire feeder

オプション トーチ

Welding torch

オプション ガス調整器

Gas regulator

For CO2 / MAG welding


Welding power source YD-200RX1 YD-350RX1 YD-500RX1
Rated input voltage V 200 AC (allowable fluctuation range:180 to 220)
220 AC (allowable fluctuation range:198 to 242)
Selectable using a switch on the rear
Number of phases, rated frequency 3-phase, 50 / 60 Hz (common)
Rated input voltage kVA 6.4 15.4 27.0
kW 6.0 14.7 25.8
Maximum open circuit voltage V 79 DC 79 DC 77 DC
Rated output current A 200 DC 350 DC 500 DC
Rated output voltage V 25 DC 36 DC 45 DC
Rated duty cycle (10-minute cycle) % 50 50 60
Output current adjustment range A 30 to 200 DC 50 to 350 DC 60 to 500 DC
Output voltage adjustment range V 10 to 25 DC 12 to 36 DC 16 to 45 DC
Control method IGBT inverter type
Applicable welding process CO₂ / MAG
Waveform control function Dial setting (low to high)
Sequence functions Main welding, Main welding-Crater, Initial welding-Main welding-Crater*1
Applicable shielding gas CO₂ (100 %)
MAG (80 % Ar and 20 % CO₂)
Applicable wire diameter mm 0.8 / 0.9 / 1.0 / 1.2 *2 0.9 / 1.0 / 1.2 *2 1.2 / 1.4 / 1.6
Applicable wire materials Mild steel, Mild steel FCW
Pre-flow time s (seconds) 0.0 to 5.0 (adjustable in 0.1 increments)
Post-flow time s (seconds) 0.0 to 5.0 (adjustable in 0.1 increments)
Input power supply terminal Terminal block (M5 bolt fixing)
Output terminal Copper plate terminal (with M8 bolt)
External dimensions (width x depth x height)*3 380 x 530 x 570 380 x 530 x 570 380 x 530 x 670
Mass kg 48 48 60

*1: When using the initial welding function, it is required to configure settings through the detailed menu.
*2: When using mild steel FCW, the wire diameter must be 1.2 mm.
*3: The depth dimension does not include the input power supply terminal cover on the rear panel.
● View the required power supply capacity and cable thickness data



Global Network

Panasonic has established a system to support customers all over the world. Customers expanding production from Japan to overseas factories can also use our equipment with peace of mind.


Website for Panasonic Shoyokai

Website dedicated page for members of Panasonic Shoyokai. You can download the application form to join the membership website P-Web.


Contact Us

We are here to help! Contact us if you have an inquiry or question.