ESAB LKA 150 - LKA 150 Component Identification

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COMPONENT DESCRIPTION, LKA 150
AP1 Circuit board with control electronics: see the diagram on page 6 and description
on page 7.
C1 Capacitor 0.1µF, 400 VDC, transient protection.
C2 Capacitor 0.1µF, 400 VDC, transient protection.
L1 Inductor.
M1 Wire feeder motor.
QF1 Switch, 8−way, for 7−step and Off (main On/Off switch) adjustment of the welding
current.
For the Australian market the main On/Off part of the switch is 2−pole.
SB1 Welding torch trigger switch.
ST1 Thermal overload cutout, for protection against overload, fitted in the winding of
main transformer TM1.
The switch operates (opens) at a temperature of 130
°C.
ST2 Thermal overload cutout, for protection against overload, fitted on the diode bridge
cooling fins (VC1). It operates (breaks) at 110 °C.
TM1 Main transformer
V1 LED, yellow.
Lights if thermal overload cutouts ST1 or ST2 operate as a result of high
temperature.
VC1 Diode bridge.
XS1 2−pole connector.
XS2 5−pole connector.
XS3 2−pole connector.
XS4 Connector, 2−pole.
XT1 Mains terminal block, 2−pole.
XT2 Terminals, welding current, positive and negative