The great advantage of the T8400 Blackout Limiter is that it prevents 2 or more generators from connecting to the bus bar at the same time, thus protecting the installation from damage.

The T8400 will check one generator after the other for its voltage. The first generator found with a voltage higher than 90% of rated voltage will be connected to the bus bar.

It is possible to monitor up to 4 generators with 1 unit and up to 8 generators with 2 units.