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4400 Series Installation and Operation Manual – 64527-008
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.
shows the external wiring for the 4400 UPS with the optional line-up and match
Battery Cabinet.
FIGURE 9.1: 4400 SINGLE INPUT ONE-LINE DIAGRAM
AC/DC
Converter
DC/AC
Inverter
4400 UPS (Single Input Config.)
Bypass Thyristor
MCCB
AC Input
3Φ 3W
or 3Φ 4W
AC Output
3Φ 3W
or 3Φ 4W
Input
Contactor
Output
Contactor
DC/DC
Converter
Ground
Wire
Fuse
Fuse
SYNC
EMI
Filter
EMI
Filter
Optional
Xfmer
Optional
Xfmer
Fuse
DC/DC
Contactor
AC/DC
Converter
DC/AC
Inverter
4400 UPS (Dual Input Config.)
Bypass Thyristor
MCCB
Input
Contactor
Output
Contactor
DC/DC
Converter
DC/DC
Contactor
Ground
Wire
Fuse
Fuse
SYNC
Fuse
(Optional)
Secondary
AC Input
3Φ/4W
EMI
Filter
EMI
Filter
Secondary Input
Contactor
Optional
Xfmer
Optional
Xfmer
AC Input
3Φ 3W
or 3Φ 4W
AC Output
3Φ 3W
or 3Φ 4W
FIGURE 9.2: 4400 DUAL INPUT ONE-LINE DIAGRAM
Summary of Contents for 4400 Series
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