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G8000 Series Installation and Operation Manual
11 UPS Wiring
Note: Always consult your local and NEC electrical codes for wiring, cabling, and circuit protection device
requirements.
Figure 11.1 illustrates the external wiring of the single-input G8000 UPS. See corresponding section to each
wiring term.
• Power cable connection at terminal blocks/buses and external breaker provision for the AC
input/output, Bypass Input and DC input.
• Earth ground wire at grounding terminal.
• Control wire terminal TB1 (battery cabinet and bypass breaker)
FIGURE 11.1 - SINGLE INPUT EXTERNAL WIRING DIAGRAM
An external maintenance bypass may be installed in parallel with the UPS to allow servicing of the G8000
while maintaining power to the UPS load. Contact the Toshiba Customer Service for further information.
G8000 Series Installation Manual
27
11 UPS Wiring
Figure 11.1 illustrates the external wiring of the G8000 UPS. See corresponding section to each wiring
term.
• Power cable connection at terminal blocks/buses and external breaker provision for the AC
input/output, Bypass Input and DC input.
• Earth ground wire at grounding terminal.
• Control wire terminal TB1 (battery cabinet and bypass breaker).
FIGURE 11.1 - EXTERNAL WIRING DIAGRAM
Battery
Breaker
< Battery Cabinet >
Bypass
Breaker
Bypass
3φ4W
Input
Breaker
AC Input
3φ3W
Output
Breaker
Output
3φ4W
DC in
p
ut
Bypass
Contactor
Contactor + Thyristor
Input
Contactor
Inverter
Contactor
Inverter
Chopper
Charger
Rectifier
< UPS >
TB1
Ground
Wire