5.4
Connecting the 3RW55 and 3RW55 Failsafe soft starters to the
main circuit connection (line side/motor side)
Requirements
• Observe the conductor cross-sections and tightening torques in the data sheet or on the front
of the 3RW55 or 3RW55 Failsafe soft starter beneath the hinged cover.
• Note the required tools indicated on the front of the 3RW55 or 3RW55 Failsafe soft starter
beneath the hinged cover.
• If you use a bar connection, you require wrenches of widths A/F 13 and 17.
Size
Article No.
Tightening torque
Size 1
3RW551.-....
2 ... 2.5 Nm
Size 2
3RW552.-....
4.5 ... 6 Nm
Size 3
3RW553.-....
10 ... 14 Nm
Size 4
3RW554.-....
14 ... 24 Nm
Size 5
3RW555.-....
20 ... 35 Nm
DANGER
Hazardous voltage.
Will cause death or serious injury.
Turn off and lock out all power supplying this device before working on this device.
Procedure for screw connection - sizes 1 and 2
[
[
[
[
Illustration similar
• Connect connection 1/L1, 3/L2, 5/L3 to the supply system
①
and tighten the screws
②
.
• Repeat steps
①
/
②
for connection 2/T1, 4/T2, 6/T3 with the motor.
Connecting
5.4 Connecting the 3RW55 and 3RW55 Failsafe soft starters to the main circuit connection (line side/motor side)
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
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