Electric Schemas - Praxair MIG SELECT-300H/4R Guide De L'utilisateur

5 - ELECTRIC SCHEMA
14
MIG SELECT 300H/4R / 350H/4R / 400H/4R / 500H/4R / 650H/4R
300 / 350 / 450 / 500 / 650 (3x400V)
1 2 3
4 6
5
A1 - Main switch
A2 - Voltage selector switch (coarse
adjustment)
A3 - Voltage selector switch (fine adjustment)
CI - PCBoard
CT - Contactor
EV - Solenoid valve
F1 - General fuse
F3 - Wire motor fuse
M1 - Motor fan
M2 - Wire feed motor
MS - Torch micro-switch
PR - Rectifier bridge
SH - Shunt
T1 - Main transformer
T2 - Auxiliary transformer
T3 - Inductance
TºC - Thermal switch