“This Harmony RSB interfacing plug-in relay has a control coil voltage of 48V AC and has 1 changeover contact single pole double throw with a rating of 16A.””It helps to reduce the size of enclosures and increases machine reliability, you can mount nearly everywhere.””Plug in type allows easy installation and maintenance.””The product is IP40 and has a transparent cover allowing operator to visually inspect the status of contacts.”