
24
4300 Series Installation and Operation Manual
AC/DC
Rectifier
DC/AC Inverter
4300 UPS
Bypass Thyristor
UPS Input Isolation
Maintenance Bypass Switch
4300 MBS (Optional)
MCCB
AC Input
3Φ/3W 0r 3Φ/4W
Output
3Φ/3W or 3Φ/4W
Input
Contactor
Output
Contactor
UPS Output Isolation
Battery Breaker 1
DC/DC
Converter
Ground Wire
4300 Batt. Cabinet (Optional)
Battery Breaker 2
Fuse
Fuse
SYNC
4300
Auxiliary T
ransformer Cabinet (Optional)
CB1
CB2
CB3
Output Trans
-
former
T2
T1
Input Trans
-
former
(208V W
ye)
(208V W
ye)
Fuse
FIGURE 9.3 - ONE LINE DIAGRAM OF 4300 UPS WITH OPTIONAL
MA
TCHING 4300 MBS,
4300 BA
TTER
Y CABINET
, AND 4300 TRANSFORMER CABINET
EMI Filter
EMI Filter