The ABB RD3-48 Rd3 Residual Current Relay 48V is a reliable and efficient solution for ensuring safety in industrial installations. Designed to provide both residual current protection and monitoring, this relay is compatible with all MCBs of the S200 series and Tmax range moulded case devices up to T5. Its robust construction and advanced technology make it an ideal choice for safeguarding electrical systems against potential faults and ensuring uninterrupted operation. Whether you're upgrading an existing setup or implementing a new system, the RD3-48 offers peace of mind with its superior performance and compatibility.