Wärtsilä JOVYSTAR COMPACT L
BAX 5624
- 25 -
9.2 Backfeed Protection Device
The UPS is provided (as option) with voltage-free contacts, which can be used to operate the shunt
trip coil (undervoltage release type) of the external sectioning device; the external device is not part of
the UPS supply and is provided and installed at customer care.
The following table shows the main electrical characteristics of the external sectioning device.
Backfeed protection device
Power (kVA)
200
Maximum operating voltage
(Vac)
690
Minimum rated current (A)
400
Category
AC-1
An isolator switch with integrated undervoltage release can be installed inside the UPS as an option.
9.3 Terminal Boards
The UPS is provided with terminal boards for the connection of power cables and of auxiliary
connections.
Picture 6 – Terminal board UPS