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What is the difference between the ATS48 soft starter that has a part number that ends in Q versus one that ends in Y?

Article available in these languages: Thai

Issue:
Difference between the ATS48 soft starter that has a part number that ends in Q versus one that ends in Y.

Product Line:
Altistart ATS48

Environment:
All serial numbers

Cause:
Customer in US is looking for an ATS48M10Q.

Resolution:
The ATS 48 ``Q`` was made for sale every where except the US.  It has 2 CT`s and a max voltage of 400 vac. The ``Y`` series has 3 ct`s and a max voltage of 690 vac.
If replacing an ATS48Q with a Y, it is very important to determine the full load amp rating of the motor. The ATS48**Q can be connected to the motor ``inside`` the Delta. This greatly reduces the amperage on each phase of the soft starter, allowing a smaller unit than normal to be applied to a motor. This is not currently possible with the ATS48**Y soft starters.
See the attached manual pages 92 to 94 (pages 11 to 13 of the electronic document)

Schneider Electric Egypt and North East Africa

Attachment(s)
ATS48 Delta Motor wiring connections.pdf [23.71 KB]
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