Toshiba 4400 Series - Page 52

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4400 Series Installation and Operation Manual – 64527-008
AC/DC
Rectier
DC/AC
Inverter
4400 UPS
Bypass Thyristor
MCCB
CB3
Kirk Key Interlock
CB2
AC Input
3Φ/3W or 3Φ/4W
Output
3Φ/3W or
3Φ/4W
Input
Contactor
Output
Contactor
DC/DC
Converter
Ground
Wire
Fuse Fuse
SYNC
Fuse
FIGURE 9.4: ONE LINE DIAGRAM OF 4400 UPS WITH INTERNAL MBS & BATTERY OPTIONS
EMI
Filter
EMI
Filter
Optional: Internal Battery String
Optional: Internal MBS
DC/DC
Contactor