Originally Posted by JMFahey
Well, it's quite the opposite.
What kills relays is not "worn coils" or something (never
) but pitted contacts.
Applying *less* pressure than designed worsens contact and helps faster pitting.
The Startup capacitor provides the high pressure required to lock in the relay. Once it has closed, the holding current can be somewhat less and keep good contact.
You can call me Mad Professor, building crazy experiments in my Electronics Workshop