ABB ACS580-01 +C135 Series Original Instructions Manual page 30

30 Mechanical installation – Frames R1 to R3
2. To fulfill UL Type 12 requirements at the backside of the drive, attach the hood
to the cooling channel. This is not required for IP55.
Front
Back
Back: View from top
R1...R2:
2 × M6 nuts
R3:
3 × M6 nuts
6 N·m (4.4 lbf·ft)
Back
Back: View from bottom
Front