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

Three phase - 15/20/25/30/50/80/100 kva
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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 external wiring for the 4400 UPS with the optional line-up and match Battery Cabinet.
Figure 9.4 shows the external wiring for the 4400 UPS with the optional internal maintenance bypass unit.
4400 UPS (Single Input Config.)
AC Input
3Φ 3W
or 3Φ 4W
Ground
Wire
4400 UPS (Dual Input Config.)
(Optional)
Secondary
AC Input
3Φ/4W
Optional
Xfmer
AC Input
3Φ 3W
or 3Φ 4W
Ground
Wire
40
Optional
EMI
Xfmer
Filter
Fuse
MCCB
Input
Contactor
FIGURE 9.1: 4400 SINGLE INPUT ONE-LINE DIAGRAM
Secondary Input
Contactor
EMI
Filter
Fuse
MCCB
Input
Contactor
FIGURE 9.2: 4400 DUAL INPUT ONE-LINE DIAGRAM
Bypass Thyristor
SYNC
AC/DC
DC/AC
Converter
Inverter
DC/DC
DC/DC
Converter
Contactor
Bypass Thyristor
SYNC
AC/DC
DC/AC
Converter
Inverter
DC/DC
Converter
DC/DC
Contactor
4400 Series Installation and Operation Manual – 64527-008
Optional
EMI
Xfmer
Filter
Fuse
Output
Contactor
Optional
EMI
Xfmer
Filter
Fuse
Output
Contactor
AC Output
3Φ 3W
or 3Φ 4W
AC Output
3Φ 3W
or 3Φ 4W

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