EM - Rail Bases EM series rail bases from Electromen Oy. These rail bases are designed for DC-motor drivers, controllers and speed regulators and can be installed into control cabinets or wall enclosures that are commonly used in industry and process automation. All rail babes are excellent quality and reliable. Features & Benefits Right size for each product Fits to 35 mm DIN Rail and C-rail Fast installation to rail Easy access to adjustments Easy access to connectors Two widths 72 mm and 108 mm