Hi there,
For a central battery-supplied emergency lighting system, I am looking for a phase failure relay to monitor the general lighting sub-circuits.
I used a phase failure relay on a project a number of years ago that monitored 4 separate phases meaning I could have 4 general lighting circuits and if any of which failed, the single emergency circuit for the same area was energised automatically.
I am not unable to find this product anywhere now, does anyone have an idea who makes something like this?
BTW, I cannot use ACMs on this project, hence the need for PFRs at the DB.
Steve Mulvenna