NEMA DC 20-1992 (R2003, R2009, R2014) 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.
Product Details
Published: 03/05/1992 Number of Pages: 18 File Size: 1 file , 470 KB Product Code(s): 100189, 100189