Siemens SIRIUS 3RW55 - Page 57

• 4 screws of suitable size and with regular thread for insertion into the selected mounting
plate or wall.
Use an additional 4 washers if the head of the screw is smaller than the speci󹪝ed diameter.
• Screwdriver (depending on the drive of the screws)
• If necessary, use shims and snap rings.
• For size 5, mounting with a crane (optional): Crane load attachment with 4 hooks
Size Article No. Screws Tightening torque
Size 1 3RW551.-..... M6 5 Nm
Size 2 3RW552.-.....
Size 3 3RW553.-.....
Size 4 3RW554.-..... M8 8 Nm
Size 5 3RW555.-..... M12 35 Nm
The following diagram shows the minimum clearances for the 3RW55 and 3RW55 Failsafe soft
starters:
PP
PP
PP
PP
5:
PP
Procedure for sizes 1 to 4
CAUTION
Heavy device
Device can cause injury if it falls.
Always ask a second person to help you transport, install and remove a heavy device. Use
suitable lifting equipment and wear personnel protective equipment.
Mounting and dismantling
4.3 Mount the 3RW55 and 3RW55 Failsafe soft starters on a level surface
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 57