jmellc
Senior Member
- Location
- Durham, NC
- Occupation
- Facility Maintenance Tech. Licensed Electrician
I may have mentioned part of this before. Looked recently at some parking lot lights, powered on 240 double pole circuits, originally switched by a photocell on 1 leg. Several photocells were out. I replaced them but new ones hardly lasted a day or 2. I think backfeed messed them up. I coworker suggested a photocell on each leg to prevent or minimize feedback. Tried that and it worked OK on a few ckts but 2 went bad very quickly. I had originally recommended a contactor to break all ckts, all legs and a photocell to switch the contactor. Customer hesitates to spend the money.
I have also looked up and found that RIB has a relay with DPST, 20 amp contacts. This would be somewhat cheaper than a contactor. I would have to special order that model and have never used it before for this purpose. Has anyone else tried these and found success?
I have also looked up and found that RIB has a relay with DPST, 20 amp contacts. This would be somewhat cheaper than a contactor. I would have to special order that model and have never used it before for this purpose. Has anyone else tried these and found success?