NEMA DC 20-1992 (R2003, R2009, R2014)
- Residential Controls - Class 2 Transformers
- standard by National Electrical Manufacturers Association, 03/05
- Category: NEMA
$80.00
$40.00
This Standards Publication covers Class 2 transformers intended primarily for use in 30 volts rms maximum low-voltage residential control circuits. It includes definitions, electrical ratings, performance standards, mounting dimensions, and marking requirements.
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