T increase-safety brushless excitation synchronous motors are high-and-new technology products developed and manufactured by our company.This series motors can be widely used in petroleum.chemical, fertilizerjefrigeration industries.the locations where explosion hazard gasses place ,and can be used to drove reciprocating compressors. This series motors adopting the new technique,material and technology in the 1990s,and being of excellent workmanship.this series motors have many features such as compact constructionjight weight,attractive appearance,high efficiency,low noise,small vibration.safe operation and easy maintenance. Enclosure of this series motors are IP54,cooling method IC81W and IC91W and mounting arrangement is IM7315JM7311 and IM7111 .Available are the motors with the different protection type.cooling form and mounting arrangement according to customer requirements.