What stands out about this relay is the clear pin layout makes tracing connections quick when the wiring diagram gets busy.
ETC R20 Unison 120V Dual 20A Relay Module. Model # R20 – 7083A1185.
With this relay, you get a 500A capacity extra size really shows in everyday use.
A nice touch is how the RS-1M-SH lines up with the datasheet specs you already know.