YR series 6KV (seat number 355-630) and YR series 10KV (seat number 450-630) motors are used at an altitude of 1000m. The ambient air temperature does not exceed 40 C and there is no serious dust, no corrosive and explosive gas. The rated frequency is 50Hz. The motors with 60Hz or other voltage can also be manufactured according to the order requirements. The basic installation mode is horizontal with bottom angle (IMB3), working system is continuous working system (S1), bearing has two forms of rolling bearing and sliding bearing, depending on the power and speed of the motor. YR series protection grade is IP23, cooling mode is IC01.