You will find that the PCB power relay tolerates rework without loosening or losing alignment.
2Pcs JQ1A-24V NAIS General Purpose PCB Relay 24VDC 5A SPST-NO
You can see the brand is NOFUEL, and a nice touch is how easily it slots into a busy panel.
When you hold the BU1 AC, the compact size and solid body inspire confidence right away.
ELK keeps things simple here, and you will find that the coil response consistent, which is great for basic automation.
What stands out about this power relay is how it balances size and power in a handy package.