0PS1042.2
The 0PS1042.2 from B & R Automation is made for single-phase use and weighs 400 g. Part of the 0PS Power Supplies, it offers top-hat rail mounting and 100-240 VAC input. It achieves >88% efficiency and an MTBF over 500K hours.
It runs at -25 to 70 deg C and gives a 4.2 A output current. The output voltage is 24 VDC with 100 W rated power. Overall, CE, UKCA, UL certified, it offers reliability with a one-year warranty from Wake Industrial.