ABB ACH580-01 - Page 121

3. To disconnect the internal EMC filter, remove the EMC screw(s).
4. To disconnect the ground-to-phase varistor, remove the varistor screw.
R4R4 v2
3
4
A
3 B
C
3 A
4
C
R6…R9R5
3 B
3 A
4 C
3
3
4
A
B
C
Screw
EMC (DC)A
EMC (AC)B
VARC
Electrical installation – IEC 121