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What is the difference between In-line and Inside Delta Soft Starter Circuits?

The Altistart 48 connected in the motor supply line

The motor connection depends on the supply voltage, which in this example is a star connection.

The motor connection depends on the supply voltage, which in this example is a delta connection.


The Altistart 48 connected in the motor delta winding
ATS48***Q or ATS48***YS316 starters connected to motors with delta connections can be inserted in series in the motor windings. They are powered by a current which is less than the line current by a factor of SQRT 3, which enables a starter with a lower rating to be used.



 
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