What is suffix NV on a Transformer (for example 75T3HNV)?

Issue:
Suffix NV on a LV Transformer

Product Line:
LV Transformer

Environment:
EX, EE LV Transformer

Resolution:
The NV indicates a Non Ventilated enclosure-also designated TENV. Cooling is obtained by radiation of heat from the surface area of the enclosure rather than the passage of air through the enclosure. NV units are not UL or CSA listed

Released for:Schneider Electric USA