PSD41/18 is an electronic device developed by Powersem, a leading manufacturer of power control and protection products. It is an intelligent Overcurrent and Earth Fault protection relay, which offers a comprehensive range of features for the comprehensive protection of medium voltage systems. It includes features such as communication, logic control, phase and ground fault protection, overcurrent protection, restricted earth fault protection etc. The device is suitable for use in different applications such as transformer protection, motor protection and more. It meets the latest technological trends in terms of protection, control and monitoring, making it one of the most reliable products available in the market.