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Can multiple motors be connected to one solid state soft starter?

Published date: 14 May 2020

Can multiple motors be connected to 1 soft starter?

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Application requirement

Size the soft starter for the total full load amps of all motors to be connected.
Provide separate overload protection for each motor.

For ATS48: Make sure the CLP parameter in the drC menu is set to OFF.
For ATS22: Make sure SSC parameter in the Adj menu is set to OFF.

Motor connections to the soft starter output should not be made or broken while the soft starter is running.  The resulting sudden change in current will cause problems and possible damage to the soft starter or other equipment.


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