The 8G820V40891 is a motor-generator set (MGS) manufactured by Dremec. It is designed to be used in a variety of applications, mainly in agricultural and industrial settings. The MGS consists of a motor, generator, and gearbox, all mounted in a single frame. It is capable of producing up to 40kW of power at 400/480V three-phase or 230/400V single-phase and it has a rated speed of 1,400/1,800rpm depending on the configuration of the motor generator. The set also includes a temperature switch and two-speed switch for control of the motor and generator. The MGS is designed for harsh environmental and shock conditions, making it suitable for work in challenging settings, such as in vibration-prone and extreme weather areas. Additionally, the MGS can be customized with different voltage ratings, speeds, and control systems.