Second, the specification code is mainly expressed by the center height, the length of the base, the length of the core, and the number of poles.
1. The center height refers to the height from the motor shaft center to the bottom angle of the base; according to the height of the center, the motor can be divided into four types: large, medium, small and miniature.
H is a micromotor in the range of 45mm~71mm;
H is a small motor from 80mm to 315mm;
H is a medium-sized motor at 355mm~630mm;
H is a large motor at 630 mm or more.
2, the length of the base is expressed by international common letters: S - short seat
M——中座
L - long base
3. The length of the core is expressed by the Arabic numerals 1, 2, 3, and 4, from long to short.
4, the pole number is divided into 2 poles, 4 poles, 6 poles, 8 poles and so on.
Third, the special environmental code has the following provisions:
Special environment code
"High" original G
Ship ("sea") with H
Household "outside" with W
Chemical anti-corruption with F
Tropical T
Wet tropical with TH
Dry tropical TA
