... working life, energy saving, high starting torque, low noise, small vibration, big breakaway torque, reliable operation performance, easy & convenient maintenance. For the Connection ... to the following rules: Series Code + Frame Size + Iron Core Length No. + Motor PolesExample: YTY 90 L - 4YTY—means ... it is same to motor with foot)L—the third part means the base iron core length no. (S-Short Base, ...