Industrial Grade Multi-Operator Rectifier is provided with proper protective relays and thermostats to prevent any damage in the rectifier banks and the main transformer due to prolonged thermal overload and momentary overload due to short-circuit. The Multi-Operator Rectifier is also provided with heating elements inside the sets which can be switched on before welding is started for proper functioning of the sets in an extreme cold and humid condition. The Multi-Operator Rectifier is required for various industrial applications. The Industrial Grade Multi-Operator Rectifier is designed in such a way that it ensures long lasting service.