You will find that the DIANN brand feels like a trusted choice when you are picking parts for the job.
10PCS 4pin 24V JQX-105F-1-024D-1HS HF105F-1-024D-1HS 30A 240VAC Relay
A nice touch is the compact shape, which leaves room for other parts in crowded enclosures.
This unbranded relay comes with a clear plastic cover, so dust stays out and you see the internals easily.
A nice touch is the gentle tension in the terminals on this unbranded relay, which grips wires without crimping them hard.
This system uses a reliable relay base w/ relay, which makes routine checks a bit easier.
You will find that this relay and socket are straightforward to wire, even if you are new to controls.