The Potter & Brum are crisp, and the part number is easy to read on the body.
3RF2020-1AA24 Relay: Semiconductor VAT: 110-230VAC 20A 48-460VAC -25-60°C SIEM
You will find that calling it a contactor relay explains why it feels so robust in the hand.
What stands out about the NVX BIR500 is how straightforward the layout feels during setup.