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What are the differences between the ATS46 and the ATS48 soft starts that need to be considered when replacing the ATS46 with an ATS48?

Issue:
What are the differences between the ATS46 and the ATS48 soft starts that need to be considered when replacing the ATS46 with an ATS48?

Product Line:
ATS48

Environment:
All models

Cause:
An ATS48 will be retrofit in place of an ATS46.

Resolution:
The dimensions will be different.  In most cases the ATS48 is smaller than the equivalent ATS46.

The programming is different.

The control voltage to the ATS46 landed on a multi- tap control power transformer built into the softstart.  The ATS48 does not have an internal CPT and will only accept control voltage between 90Vac and 270Vac.  An external control transformer may be required.  The control power burden varies with ATS48 size:
ATS48D17Y and ATS48D22Y require 25 Watts.
ATS48D32Y, ATS48D38Y, ATS48D47Y, ATS48D62Y, ATS48D75Y, ATS48D88Y, ATS48C11Y, ATS48C14Y, and ATS48C17Y require 30 Watts.
ATS48C21Y, ATS48C25Y, and ATS48C32Y require 50 Watts
ATS48C41Y, ATS48C48Y, ATS48C59Y, ATS48C66Y, ATS48C79Y, ATS48M10Y and ATS48M12Y require 80 Watts.

The ATS46 had a Fault Relay with both NO and NC contacts (NO terminals are R1A and R1C.  NC terminals are R1B and R1D).  The ATS48 Fault Relay only has a NO contact (R1A and R1C).  If the R1B - R1D contact was used, then an interposing relay is required to keep that functionality.

The ATS46 had power terminals to connect both the line and load side of a shorting contactor.  The ATS48 only provides load side power terminals.
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