Mean Well MDR are a series of power supplies for mounting on DIN rail for industrial purposes or for housing. Options are 5/12/15 eller 20VDC. All modules within same series has same nominal power, for example has MDR-20 an output of 20W, while MDR-100 gives 100W output.
Dimensions for MDR-20 series: 22,5x90x100mm (WxHxD)
Dimensions for MDR-40 series: 40x90x100mm (WxHxD)
Dimensions for MDR-60 series: 40x90x100mm (WxHxD)
Dimensions for MDR-100 series: 55x90x100mm (WxHxD)