Taurus MIG-250TD, Operation Manual, Page: 15 / 32

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2. Power Input Requirements
The power supply waveform should be the standard sin wave, the rated voltage
380V±10% 50/60Hz. Three phase voltage unbalance should be ≤ 5
%.
Model MIG-250TD MIG-300TD
Parameters Value
Power supply
：
1PH-AC220V ±15%
50/60Hz
3PH-AC380V±15%
50/60Hz
Rated input current: 16A 25.0A
Input cable
：
≥2.5mm 2 ≥2.5mm 2
Output cable ： 25mm
2
30mm
2
Ground cable
：
≥2.5mm 2 ≥2.5mm 2
3. Main Power Supply Connection
Pay attention to prevent electric shock Wear goggles
Take note of the following when the machine is connected to the main
power supply:
3.1. The connection must be carried out by a qualified electrician or technician.
3.2. The connection must be in compliance with national and local regulations.
3.3. Before the connection is carried out, the main power supply to the control
box must be switched off.
3.4. An earth cable set must be securely connected from the machine to the
work-piece. The machine must be earthed.
3.5. Ensure that the required power supply of the machine (as printed on its
nameplate) corresponds to the main power supply.
3.6. The connection screws on the terminal block must be tight ensuring a solid
connection between the machine cable wires and the main power supply.
3.7. The correct wiring procedure is explained in the following diagram: