Rtech TIG401, Operation Instructions Manual

4

Introduction 

The R-Tech Tig401 is a member of our field acclaimed family of welding products. Premium 

features include:

- 

1.  Inverter power source – more efficient to operate, provides smoother weld characteristics. 
2.  AC squarewave frequency adjustment to 250Hz 
3.  AC squarewave balance control 
4.  Full featured pulse welding in both AC and DC modes 
5.  Patented HF Microstart – Reduces electronic interference to local area 
6.  Slope up / slope down 
7.  Remote foot pedal option 
8.  Digital amp meter 

9. 

Industrial 60% Duty cycle at 400 Amps @ 40C 

Recommended Processes 

The R-Tech Tig401 is recommended for the Tig welding processes within its output capacity of 400 
Amps 

 
Equipment Limitations  

The R-Tech Tig401 is protected from overloads beyond the output ratings and duty cycle as per 
machine specifications with thermostat protection of the output coils and rectifiers. 
 

Welding Capability – Duty Cycle 

The R-Tech Tig401 is rated at 400 Amps at 60% duty cycle on a ten minute basis. If the duty cycle 
is exceeded a thermal protector will shut machine off until the machine cools. 

Technical Specifications 
 

Model No. 

 R-Tech TIG401 

Input (volts/amps) 

415V 3 Phase AC 50/60Hz 

MMA  

No-load Voltage 

60V – 80V 

Current Range 

5A – 160A 

Rated Output Current 

315A 

 Duty 

Cycle 

35% 

TIG 

No-load Voltage 

60V – 80V 

Current Range 

(AC 20A – 400A) (DC 20-400A) 

Rated Output Current 

400A 

Duty Cycle 

60% @40c 

SP% AC Balance 

30 – 70 

Up-Slope Time 

10 Seconds 

 Down-Slope 

Time 

10 

Seconds 

Pulse Current Range 

5A – 400A 

Pulse Width Range 

0.1 – 0.9 Seconds 

Pulse Frequency Range  0.5Hz – 25Hz 

Arc starting mode 

HF Microstart 

Gross Weight 

46 KG 

Insulation  

IP21S 

Dimensions mm 

430 x 200 x 290