ESAB ES 150i Service Manual page 17

WIRING DIAGRAM
Secondary rectifier
Secondary diode (FRD)
NOTE!
IGBT and FRD look very similar. Read the descriptions carefully before you do
repair to make sure you do not use the wrong part.
0463 714 001
Converts HF AC to HF DC
power.
- 17 - © ESAB AB 2020