Why do relays have maximum switching power ratings? I understand maximum current ratings -- you don't want to weld the contacts or melt the device. I understand maximum voltage ratings -- you don't want to arc to the case or other components. But if a 60W relay (such as the IM03DGR) can handle 24V (if current < 2.5A), and that same relay can handle 5A (if voltage < 12V), why can't it handle 5A at 24V? What failure mode would it exhibit?
Thank you!
Thank you!