Hello,
I have a Masterguard UPS E 80-3 . It could not start. I checked the fuse found ok.
1. i am looking for the manual of it.
2. I need possible problem that could not start the system.
I have disconnect the batteries from the system.
and apply 460 voltage 3 phase + N + G.
i understand at least the system should be on, but the equipment looks dead.