Borri UPSaver 1000 kVa, Operating Manual, Page: 129 / 185

UPS user manual
20 OMH44150 REV. B
3.4 CONTROL AND OPERATION DEVICES
The control and operating devices of the UPS are listed below.

Rectifiers input line isolator (RCBS)

Bypass input line isolator (SBCBS)

UPS output isolator (OCBS)

Manual bypass isolator (MBCBS)

Battery Isolator / Circuit breaker (BCB) - External, inside the battery cabinet

Emergency power off button (EPO)

Normal/Bypass selector

Touch screen control panel
The distribution column located at the I/O module sides houses the isolating devices of the
power modules, as indicated below.

Rectifier input isolator (RCBx)

Bypass line inout AC contactor (Kx)

Pulsante ON/OFF di avvio bypass statico (SBCBx)

Module output isolator (OCBx)

Battery isolator (BCBx)
Check the personnel training
The use of the operation and control devices of the UPS is intended for authorized
personnel only. We recommend to check the training of the personnel responsible for
the use and maintenance of the system.
3.4.1 Isolators (AC inputs, battery and AC output)
The isolators provided on the UPS are used to isolate the power components of the device
from the AC supply line, from the storage battery and from the loads.
Voltage present on terminals
The isolators do not isolate the UPS completely, since AC voltage is still present on
the UPS input terminals. Before carrying out any maintenance on the unit:

Isolate the device completely by operating the external circuit breakers;

Wait at least 5 minutes in order to allow the capacitors to discharge.