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• 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 specified 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
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