Based on this product's specifications, here are some alternatives and similar models
Power Supply Unit Lancom SPSU-400-F2B 400 W AC 100–240 V 50/60 Hz for Access Switches, Grey
Summary description:
Lancom SPSU-400-F2B is a dedicated power supply unit for access switches providing up to 400 W total power. It accepts an AC input of 100–240 V at 50/60 Hz and delivers stable power for network equipment. The unit is grey and designed for reliable continuous operation in networking environments where fixed AC mains compatibility is required.