This standard specifies the types, basic parameters and dimensions, technical requirements, inspection rules and test methods, and requirements for marking, packaging and warranty period of YCTD series electromagnetic adjustable-speed motor (hereinafter referred to as "adjustable-speed motor").
This standard is applicable to YCTD series (frame size 100~315) adjustable-speed motor, and all other series adjustable-speed motors derived from YCTD series adjustable-speed motor may also refer.