Mounting The External Bypass Contactor - Siemens SIRIUS 3RW51 Equipment Manual

Mounting and Dismantling

4.4 Mounting the external bypass contactor

• Screw the lower 2 screws into the mounting plate
cm (at least 2 cm for size 4) are protruding and then place the 3RW51 soft starter onto the
2 lower most screws
• Tilt the 3RW51 soft starter up so that it is resting level against the mounting plate
tighten all 4 screws with the specified torque
Result
You have mounted the 3RW51 soft starter on a level surface and can now connect (Page 58)
it.
4.4 Mounting the external bypass contactor
Requirements
• External bypass contactor - Based on rated current of the soft starter
• Note the mounting positions, minimum clearances and ambient conditions stated on the
data sheet
• Level surface, e.g. sufficiently strong mounting plate
• Drilling template or standard mounting rail (depending on the size of the contactor)
• X-screws of suitable size for insertion into the selected mounting plate or wall (depending on
the size of the contactor)
• Screwdriver (depending on the size of screws used in the contactor)
36
②
from above.
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
①
. Ensure that both screws of at least 1.5
④
.
③
and
SIRIUS 3RW51 Soft Starter