With Omron, you get a relay that feels solid in the hand and quiet.
2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets
You will find that a 500A relay like this pairs well with bigger transformers.
the model MIC-06-117 is easy to identify during maintenance, which is a nice touch.
The brand NOVITA is shown clearly on the front, which is a nice touch for quick checks later.
A nice touch is the heavy duty rating printed clearly, so you know it is ready for demanding circuits.
You will find that the black finish helps keep the setup looking tidy even in busy cabinets.
You will find that the 40ISR model is easy to reference during long projects.
This unit carries the Schneider Electric brand, and you will find that it lines up with familiar product families.