Why do some of the OM motors have Class E (248F) insulation class windings, but UL only recognizes them as Class A (221F)?

mo-ta モーター

October 7, 2006

Why do some of the OM motors have Class E (248F) insulation class windings, but UL only recognizes them as Class A (221F)?

Filed under: AC Gearmotors — mota @ 2:51 am

Class A (221F), Class E (248F), Class B (266F).

UL does not have a category for Class E, so we have to be recognized using the next lower class.

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October 7, 2006