Phoenix Contact MUT Series Modular Terminal Blocks use the "small" DIN rail and have an overall width of 3.5 mm. Since
their other dimensions are also very compact, they are ideal for
installation in small switch boxes or terminal boxes, e.g. for a motor
connection. The MUT series features two flat exterior marking grooves to accept flat marking material such as UC-TMF. A further middle marking groove covers the function shaft, which can however still be used for standard plug-in bridges. The proven screw connection provides additional advantages: multi-conductor connections and zero maintenance.