I like the 2pcs - 4pin relays because the pin layout is easy to follow and label.
IDEC SR2P-06 8 Pin Octal Relay Socket Base, 10A, 300V, NOS Surplus
What stands out about the Allen-Bradley brand is the solid reputation behind the product.
The Allen-Bradley brand stands behind the relay, and that matters when wiring panels.
What stands out about the Allen-Bradley brand is the familiarity across plant floors.
What stands out about the P7TFOS16 is how well it aligns with common panel layouts.
A nice touch is seeing AMERICAN ZETTLER / MCE on the relay, a brand real history behind it.
If you check the listing, you will find that the relay uses a pin style design for straightforward mounting.
You will find that the DIN-rail housing makes mounting these relays on a standard panel quick and straightforward.
What stands out about this relay is its clear labeling as model KUP-14D15-24=KU.
The LK-61644 is stamped right on the casing, a nice touch when you're sorting through parts in a hurry.