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Does a 9070 Type T or TF Industrial Control Transformer (CPT) have any continuous overload capacity? What about momentary overloads due to high inrush loads (a coil on a contactor?)

Issue:
Control Transformers may experience momentary overloads on high inrush loads

Product Line:
LV Transformers

Environment:
Applies to 9070 T and TF type Control Transformers by SquareD/Schneider Electric

Cause:
Inductive loads such as Motors, Solenoids, and Transformers may produce high inrush currents when first energized


Resolution:

Transformers are 100% rated devices.  As such, they do not have any continuous overload capacity.  CPTs are specifically designed for momentary currrent draw in excess of it`s rating for high inrush type loads.  For direction on selecting the appropriate CPT for an application, see page 5 of the Industrial Control Transformer catalog, document # 9070CT9901, attached below.


CTA-ID : 2003429

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