When you browse this relay, you will find that the RemoteKit type is a nice touch for easy setups.
T.I. 4CR-1-650 638041922 Cornelius Relay T.I. #4Cr-1-650 Genuine OEM ICO1 New
It is a nice touch that the parts clearly say RELAY AND CONTROL when you open the box.
A nice touch is that Phoenix Contact relays often come with clear markings, making wiring less frustrating for installers.