Procedure For Cable Connections; Table 3.3 Maximum Permitted Fault Current - Mitsubishi Electric 9900B Series Owner Technical Manual

MITSUBISHI
ELECTRIC
C) Space requirement for routine maintenance:
Allow for the following space at the time of installation.
Front
Sides
Back side
Top side
D) External Battery Supply
Please refer to the following when installing and maintaining batteries:
1. The customer shall refer to the battery manufacturer's installation manual for
battery installation and maintenance instructions.
2. The maximum permitted fault current from the remote battery supply and the DC
voltage rating of the battery supply over-current protective device, as shown in
Table 3.3.

Table 3.3 Maximum Permitted Fault Current

UPS Capacity
(kVA)
300
500
750

3.3 PROCEDURE FOR CABLE CONNECTIONS

1. Confirm the capacity of the UPS being installed. Identify the input/output power
terminal blocks as shown in the appropriate Figures 3.1 through 3.3.
2. Connect the internal control wire and power wire.
(1) Control wire interconnections
a)
b)
(2) Power wire (AC input, Bypass input, AC output) interconnections
a) From user's distribution panel
b) DC Input to UPS
9900B SERIES UPS
OWNERS / TECHNICAL MANUAL
1075 mm (43 inches)
0.0 mm (0 inch)
0.0 mm (0 inch)
500 mm (20 inches)
DC Voltage
CB2 UVT to terminal TN1-1, 2 of external I/F PCB IOAU-09.
CB2 ON Auxiliary to terminal TN1- 3, 4 of external I/F PCB IOAU-09.
1. X1 (A-phase) to A bus bar in UPS
2. X2 (B-phase) to B bus bar in UPS
3. X3 (C-phase) to C bus bar in UPS
1. Positive cable to BP bus bar in UPS
2. Negative cable to BN bus bar in UPS
MITSUBISHI ELECTRIC 9900B SERIES UPS
Rating (V) Current Permitted (A)
480
480
480
Page Number:
3-2
Maximum Fault
25,000
25,000
25,000