IV404E Rev.000 SIEL S.p.A.
Issue date: 2017-06-05 Pag. 22 di 90 + FR
500-600kVA
The neutral state is function of position of the bypass line switch.
NOTE (*): place the label supplied (
The following label, supplied with the UPS, must be displayed on
all switching devices
located upstream
in the same electrical system as the UPS)
:
Before working on this circuit
- Isolate Uninterruptible Power System (UPS)
-Then check for Hazardous Voltage between all terminals
including the protective earth
Risk of Voltage Backfeed
L1
N
L3
L2
L1
L2
L3
L1
L2
L3
Static
Switch
SWMB
SWBY
SWOUT
PE
L2
L1
L2
N
L3
N
L3
L1
PE
PE
UPS
(*)