-
5
-
4. INSTALLATIONS AND CONNECTION
4.1 Places for use
Always place the welder on a dry, clean and solid ground for use.
Do not use the welder at the following locations:
a. direct sunshine or rain
b. dusty with inflammable gas
c. harmful and caustic gas
d. highly humid steam
e. high vibration
f. small space with less than 50cm distance to surroundings
g. temperature higher than +40
℃
or lower than-10
℃
4.2 Earthing
Connect the welder’s earthing connector to the earthing line to avoid damage from electric shocks.
4.3 Ventilation
To ensure welding quality, please minimize the effect the wind has on arc. In enclosed space,
please make sure there is enough oxygen from ventilation.
4.4 Power and cable
Table 2 Power and cable
Power
3Phase AC
（
380V
）
50Hz
Model
NBC-250D
NBC-350M
Capacity
Suitable power
11KVA above
16KVA above
Engine power
generator
11KVA*2 above
16KVA*2 above
Input protective
equipment
Fuse
26A
36A
Cable cross
sectional area
Power input
4mm2 above
6mm2 above
Power output
25mm2 above
35mm2 above
Earthing line
10mm2 above
10mm2 above
Please install electricity leakage safeguard protector when the ground is damp or operate on
iron plate and rack.
Please only use the appointed wire feeder.
