You will find that this relay comes with a flange mount relay design for easier alignment during setup.
3RF2230-1AC45 SIEMENS Semiconductor relay, 3phase 30 A/40°C 48-600V / 4-30V DC
One thing I like about the NVX BIR500 is how well it blends with standard panel layouts.
Many users like that the Formiden name is shown right on the relay, making identification straightforward.