JB/T 12221-2015 YYSP series (IP55) special frequency conversion speed regulation three-phase asynchronous motor technical conditions for compressors (frame size 80~355) (English Version)
2015JB/T 12221-2015 YYSP series (IP55) special frequency conversion speed regulation three-phase asynchronous motor technical conditions for compressors (frame size 80~355)