ABB ACS580-01 +C135 Series Original Instructions Manual page 39

Mechanical installation – Frames R4 and R5 39
7. For R4, R5: Attach the side brackets (d) to the U-brackets using M6 nuts
finger-tight. Then use the tightening brackets (e, 4 × M5×20 screws) to press
the side brackets against the module.Tighten the side bracket nuts.
(2.2 lbf·ft)
(4.4 lbf·ft)