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4300 Series Ancillary Cabinets Installation and Operation Manual
2.4 Factory Authorized Personnel
Factoryauthorizedpersonnelhavebeenfactorytrainedandcertiedtoinstall,service,andrepairthe
UPS. Contact the Toshiba Customer Support Center for assistance in locating the factory authorized
personnel nearest you.
3 Important Safety Instructions
3.1 Maximum Operating Temperatures
The following contains important instructions that should be followed during the installation, operation, and
maintenance of the 4300 Series UPS Ancillary cabinets.
The maximum operating ambient temperature for the 4300 Series Ancillary Cabinets are as follows:
• 431A (Auxiliary Cabinet) – 104 °F (40 °C).
• 431B (Battery Cabinet) – 90 °F (32 °C).
• 431M (MBS Cabinet) – 104 °F (40 °C).
If the 4300 System is exposed to the same ambient temperature as the DC backup supply (431M or other),
the maximum operating ambient temperature is:
• DC backup: 90 °F (32 °C). Table 3.2 lists the nominal battery voltage.
TABLE 3.2 UPS NOMINAL BATTERY VOLTAGE
CapaCity NomiNal Voltage Float Voltage
30 kVA 288 Vdc 324 V
50 kVA 288 Vdc 324 V
CAUTION
Misuse of this equipment could result in personal injury and/or equipment damage.
In no event will Toshiba Corporation be responsible or liable for either indirect or
consequential damage or injury that may come from the use of this equipment.