Hello,
Your power supply can work with RUT955 devices. RUT955 can be powered from any voltage between 9 and 30 VDC.
However, while the device is designed to accept input voltage of up to 30 VDC, it is recommended to also use additional safety equipment to suppress plausible higher voltage peaks that could harm the device (especially during the process of connection and disconnection).
Your provided specs are also sufficient for the Relay Output.
Best of Luck,
Lukas