General; Table 1.2 Rating Of Bypass Input Circuit Breaker - Mitsubishi Electric 9900D Series Owner Technical Manual

WARNING
This UPS does not include a Bypass input circuit breaker (MCCB) to protect
bypass circuit. The Bypass input circuit breaker (MCCB) is to be field supplied
and installed. Recommended Breaker (MCCB)'s Specifications are as follows:

Table 1.2 Rating of Bypass Input Circuit Breaker

Capacity (kVA) Bypass Voltage (Vac) Bypass Rating (Aac)
1200
1250
1500
1600
2000
AC input and AC output overcurrent protection and disconnect devices shall be field
supplied and installed. The DC circuit breaker (MCCB) shall be field supplied and installed.
The overcurrent protection device should be installed in the Battery cabinet and rated as
indicated in Table 1.6.

1.2 GENERAL

The Mitsubishi 9900D SERIES UPS is designed to provide continuous and clean electrical power to
a critical load. Additionally the UPS monitors power conditions affecting the load. In the event of an
input power failure, the UPS will supply power to the critical load for the specified battery time.
If the input power is not restored promptly, backup power from the UPS battery permits the orderly
shutdown of equipment supported by the UPS. The UPS is simple to start-up, operate and maintain.
The 9900D SERIES UPS is available in 1200, 1250, 1500, 1600 and 2000 kVA. Specifications are
shown in Section 1.5.
This manual provides an overview of the 9900D SERIES components and their functions. The
appearance and purpose of operator controls and indicators is described with procedures for
operation, start-up, shutdown and basic maintenance included.
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
WARNING 4
480
480
480
480
480
MITSUBISHI ELECTRIC 9900D SERIES UPS
Page Number:
Breaker (A)
1443 1600
1504 1600
1804 2000
1925 2000
2406 2500
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