A nice touch is the crisp hum of the JQC-3FF-S-Z when it engages.
Crompton Instruments 256-PLLU Protector Relay 5 Amp 250 Volt 50/60Hz 24 Volt DC
You will find that the PLC-RSC-24UC/21 behaves consistently even in panels with modest heat and vibration.
What stands out about the RS-1M is the clear coil voltage marking and easy wiring.
You will find that heavy-duty reliability plus remote access makes day-to-day control a lot less hassle.