SSAC ARP63S Duplexing Alternating Relay 230VAC Lead Lag Pump Control 8-Pin

You will find that the part marked KUP-14D15-24=KU matches what you intended to buy.

A nice touch is the compact shape, which leaves room for other parts in crowded enclosures.

When replacing older relays, the G3P-210B connects quickly, with friendly markings that ease the process.