The STRUTHERS-DUNN part WM60AA-120A is an electromechanical relay with a mercury displacement switch. It features a double-pole, single-throw normally open configuration, making it suitable for applications where high current switching is required. With a maximum current rating of 60A and a coil resistance of 218 ohm, this relay can handle heavy loads. The relay is designed to be mounted on a DIN rail, providing easy installation in industrial environments. Its 120V coil voltage ensures efficient operation and reliable performance.