Wow, thank you all so much. waross, jraef, DRWeig, I'll get back to you a bit later today. On-site now, but being pulled in a few different directions.
Sorry for the double post..
As I research more, I'm wondering if it may be an issue of inrush current.
If that turns out to be the case (I'm not on-site right now to investigate), does anyone have any experience with different options to protect relays from inrush? Or would I need to switch...
If you're referring to the lamps in the fixtures, they differ throughout the facility. Problematic circuits have been incandescent (tungsten) only, fluorescent only, or a combination of both.
If you're referring to the relay contacts, they're silver alloy.
Schneider Electric/Magnecraft...
Pathetically beginner question, I'm sure.. (see last paragraph)
The problem: Lighting relays oxidize and get "stuck" after a short time, becoming unresponsive.
- 20A mechanical relays switching 120V lighting circuits w/ 24VDC signal
- No more than 15A on any relay
- Control signal is reliable...
