One-Line Diagram - Toshiba 4400 Series Installation And Operation Manual

9.2

One-Line Diagram

Note: Always consult your local and NEC electrical codes for wiring, cabling, and circuit protection device
requirements.
Figure 9.1 shows the external wiring of the 4400 UPS with a single input.
Figure 9.2 shows the external wiring needed for the 4400 UPS with the optional dual input.
Figure 9.3 shows the cabling for the 4400 UPS with the optional line-up and match Battery Cabinet.
4400 UPS (Single Input Config.)
Optional
Xfmer
AC Input
3Φ 3W
MCCB
or 3Φ 4W
Ground
Wire
4400 UPS (Dual Input Config.)
(Optional)
Secondary
AC Input
3Φ/4W
MCCB-2
Optional
Xfmer
AC Input
3Φ 3W
MCCB
or 3Φ 4W
Ground
Wire
38
Bypass Thyristor
SYNC
EMI
Filter
Fuse
Input
AC/DC
Contactor
Converter
DC/DC
Converter
FIGURE 9.1 – 4400 SINGLE INPUT ONE-LINE DIAGRAM
Secondary Input
Bypass Thyristor
Contactor
SYNC
EMI
Filter
Fuse
Input
AC/DC
Contactor
Converter
DC/DC
Converter
FIGURE 9.2 – 4400 DUAL INPUT ONE-LINE DIAGRAM
4400 Series Installation and Operation Manual – 64527-006
EMI
Filter
Fuse
Output
DC/AC
Contactor
Inverter
EMI
Filter
Fuse
Output
DC/AC
Contactor
Inverter
Optional
Xfmer
AC Output
3Φ 3W
or 3Φ 4W
Optional
Xfmer
AC Output
3Φ 3W
or 3Φ 4W