The synchronism function (with the presence of line and bar volt

age) can be supervised by two undervoltage units that permit

the synchronism function when both voltages are above the set

value.

Additionally, the relay contains dead line-dead bus (DLDB), dead

line-live bus (DLLB) and live line dead bus (LLDB) units, with the

ability to select any combination of them through independent

settings.

The basic relay, MLJ1000. and the RS-485 communications

model, MLJ1005. are mounted in a 2″ module that is compatible

with the MID industrial systems.

They can also be provided in an individual 1/8 rack. The relays

with additional communications via RS232 and plastic or glass

fiber optics, models MLJ1006 and MLJ1007. come with an addition

al 2″ card. The set can be mounted in either a 4″ module for

MID compatibility or a 1/4 rack case to be used as a stand alone

relay.