Simplified Main Circuit Diagram; Main Circuit Components - Kemppi WeldForce KPS 3500 Service Manual

Simplified main circuit diagram

L1
L2
L3

Main circuit components

The filter card Z004 dampens the electromagnetic disturbances conducting to the net (EMI).
Varistors (550 V) form an overvoltage protection against low energy voltage spikes. Note! Filter
card Z004 and varistors are mounted before the main switch S001!
Control card A001
Filter card Z004
V1
V2
V1
V2
Varistors (550V)
Main switch S001
5