Based on this product's specifications, here are some alternatives and similar models
Power Supply Elfon EWD 10/20
Summary description:
Elfon EWD 10/20 is a power supply unit designed to provide stable DC power for electronic systems. Supplied by Elfon under model EWD 10/20, it serves general-purpose powering needs for control panels, alarm systems, CCTV, and other low-voltage equipment. Use it where a dedicated, model-specific power source is required; check compatibility with system voltage and current requirements before installation.