NEMA DC 20:1992(R2003,R2009,R2014)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Residential Controls—Class 2 Transformers
Hardcopy , PDF
07-26-2022
English
06-24-2022
Foreword
Scope
History of standards
1 Referenced standards and definitions
Referenced standards
Definitions
2 Ratings and classification
Electrical ratings
Classification
3 Mounting
General
Plane-surface mounting
Outlet-box mounting
4 Performance and test
General
Regulation
5 Marking
General
Additional marking
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